ENGINE (DIAGNOSTICS)(H4SO)
Basic Diagnostic Procedure
Check List for Interview
General Description
Electrical Component Location
Engine Control Module (ECM) I/O Signal
Engine Condition Data
Data Link Connector
General Scan Tool
Subaru Select Monitor
Read Diagnostic Trouble Code (DTC)
Inspection Mode
Drive Cycle
Clear Memory Mode
Compulsory Valve Operation Check Mode
System Operation Check Mode
Malfunction Indicator Light
PROCEDURE
ACTIVATION OF MALFUNCTION INDICATOR LIGHT
MALFUNCTION INDICATOR LIGHT DOES NOT COME ON
MALFUNCTION INDICATOR LIGHT DOES NOT GO OFF
MALFUNCTION INDICATOR LIGHT DOES NOT BLINK
MALFUNCTION INDICATOR LIGHT REMAINS BLINKING

Diagnostics for Engine Starting Failure
PROCEDURE
STARTER MOTOR CIRCUIT
CHECK POWER SUPPLY AND GROUND LINE OF ENGINE CONTROL MODULE (ECM)
IGNITION CONTROL SYSTEM
FUEL PUMP CIRCUIT
FUEL INJECTOR CIRCUIT

Diagnostic Procedure for Subaru Select Monitor Communication
List of Diagnostic Trouble Code (DTC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC P0026 INTAKE VALVE CONTROL SOLENOID CIRCUIT RANGE/PERFORMANCE (BANK 1)
DTC P0028 INTAKE VALVE CONTROL SOLENOID CIRCUIT RANGE/PERFORMANCE (BANK 2)
DTC P0030 HO2S HEATER CONTROL CIRCUIT (BANK 1 SENSOR 1)
DTC P0031 HO2S HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 1)
DTC P0032 HO2S HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 1)
DTC P0037 HO2S HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 2)
DTC P0038 HO2S HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 2)
DTC P0076 INTAKE VALVE CONTROL SOLENOID CIRCUIT LOW (BANK 1)
DTC P0077 INTAKE VALVE CONTROL SOLENOID CIRCUIT HIGH (BANK 1)
DTC P0082 INTAKE VALVE CONTROL SOLENOID CIRCUIT LOW (BANK 2)
DTC P0083 INTAKE VALVE CONTROL SOLENOID CIRCUIT HIGH (BANK 2)
DTC P0102 MASS OR VOLUME AIR FLOW CIRCUIT LOW INPUT
DTC P0103 MASS OR VOLUME AIR FLOW CIRCUIT HIGH INPUT
DTC P0107 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT LOW INPUT
DTC P0108 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT HIGH INPUT
DTC P0112 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT LOW
DTC P0113 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT HIGH
DTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOW
DTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGH
DTC P0122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT LOW
DTC P0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT HIGH
DTC P0125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
DTC P0131 O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 1 SENSOR 1)
DTC P0132 O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 1 SENSOR 1)
DTC P0133 O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 1)
DTC P0134 O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1)
DTC P0140 O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 2)
DTC P0171 SYSTEM TOO LEAN (BANK 1)
DTC P0172 SYSTEM TOO RICH (BANK 1)
DTC P0197 ENGINE OIL TEMPERATURE SENSOR LOW
DTC P0198 ENGINE OIL TEMPERATURE SENSOR HIGH
DTC P0222 THROTTLE/PEDAL POSITION SENSOR/SWITCH “B” CIRCUIT LOW
DTC P0223 THROTTLE/PEDAL POSITION SENSOR/SWITCH “B” CIRCUIT HIGH
DTC P0301 CYLINDER 1 MISFIRE DETECTED
DTC P0302 CYLINDER 2 MISFIRE DETECTED
DTC P0303 CYLINDER 3 MISFIRE DETECTED
DTC P0304 CYLINDER 4 MISFIRE DETECTED
DTC P0327 KNOCK SENSOR 1 CIRCUIT LOW (BANK 1 OR SINGLE SENSOR)
DTC P0328 KNOCK SENSOR 1 CIRCUIT HIGH (BANK 1 OR SINGLE SENSOR)
DTC P0335 CRANKSHAFT POSITION SENSOR “A” CIRCUIT
DTC P0340 CAMSHAFT POSITION SENSOR “A” CIRCUIT (BANK 1 OR SINGLE SENSOR)
DTC P0400 EXHAUST GAS RECIRCULATION FLOW
DTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1)
DTC P0458 EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT LOW
DTC P0459 EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT HIGH
DTC P0462 FUEL LEVEL SENSOR “A” CIRCUIT LOW
DTC P0463 FUEL LEVEL SENSOR “A” CIRCUIT HIGH
DTC P0500 VEHICLE SPEED SENSOR “A”
DTC P0512 STARTER REQUEST CIRCUIT
DTC P0600 SERIAL COMMUNICATION LINK
DTC P0604 INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR
DTC P0605 INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR
DTC P0607 THROTTLE CONTROL SYSTEM CIRCUIT RANGE/PERFORMANCE
DTC P0638 THROTTLE ACTUATOR CONTROL RANGE/PERFORMANCE (BANK 1)
DTC P0700 TRANSMISSION CONTROL SYSTEM (MIL REQUEST)
DTC P0851 PARK/NEUTRAL SWITCH INPUT CIRCUIT LOW (AT MODEL)
DTC P0851 NEUTRAL SWITCH INPUT CIRCUIT LOW (MT MODEL)
DTC P0852 PARK/NEUTRAL SWITCH INPUT CIRCUIT HIGH (AT MODEL)
DTC P0852 NEUTRAL SWITCH INPUT CIRCUIT HIGH (MT MODEL)
DTC P1160 RETURN SPRING FAILURE
DTC P1492 EGR SOLENOID VALVE SIGNAL #1 CIRCUIT MALFUNCTION (LOW INPUT)
DTC P1493 EGR SOLENOID VALVE SIGNAL #1 CIRCUIT MALFUNCTION (HIGH INPUT)
DTC P1494 EGR SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION (LOW INPUT)
DTC P1495 EGR SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION (HIGH INPUT)
DTC P1496 EGR SOLENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION (LOW INPUT)
DTC P1497 EGR SOLENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION (HIGH INPUT)
DTC P1498 EGR SOLENOID VALVE SIGNAL #4 CIRCUIT MALFUNCTION (LOW INPUT)
DTC P1499 EGR SOLENOID VALVE SIGNAL #4 CIRCUIT MALFUNCTION (HIGH INPUT)
DTC P1560 BACK-UP VOLTAGE CIRCUIT MALFUNCTION
DTC P2101 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT RANGE/PERFORMANCE
DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW
DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH
DTC P2109 THROTTLE/PEDAL POSITION SENSOR “A” MINIMUM STOP PERFORMANCE
DTC P2122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT LOW INPUT
DTC P2123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT HIGH INPUT
DTC P2127 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT LOW INPUT
DTC P2128 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT HIGH INPUT
DTC P2135 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A”/“B” VOLTAGE CORRELATION
DTC P2138 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D”/“E” VOLTAGE CORRELATION
DTC P2228 BAROMETRIC PRESSURE CIRCUIT LOW
DTC P2229 BAROMETRIC PRESSURE CIRCUIT HIGH

General Diagnostic Table
ENGINE (DIAGNOSTICS)(H4DO)
Basic Diagnostic Procedure
Check List for Interview
General Description
Electrical Component Location
Engine Control Module (ECM) I/O Signal
Engine Condition Data
Data Link Connector
General Scan Tool
Subaru Select Monitor
Read Diagnostic Trouble Code (DTC)
Inspection Mode
Drive Cycle
Clear Memory Mode
Compulsory Valve Operation Check Mode
System Operation Check Mode
Malfunction Indicator Light
PROCEDURE
ACTIVATION OF MALFUNCTION INDICATOR LIGHT
MALFUNCTION INDICATOR LIGHT DOES NOT COME ON
MALFUNCTION INDICATOR LIGHT DOES NOT GO OFF
MALFUNCTION INDICATOR LIGHT DOES NOT BLINK
MALFUNCTION INDICATOR LIGHT REMAINS BLINKING

Diagnostics for Engine Starting Failure
PROCEDURE
STARTER MOTOR CIRCUIT
CHECK POWER SUPPLY AND GROUND LINE OF ENGINE CONTROL MODULE (ECM)
IGNITION CONTROL SYSTEM
FUEL PUMP CIRCUIT
FUEL INJECTOR CIRCUIT

Diagnostic Procedure for Subaru Select Monitor Communication
List of Diagnostic Trouble Code (DTC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC P0011 INTAKE CAMSHAFT POSITION - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 1)
DTC P0021 INTAKE CAMSHAFT POSITION - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 2)
DTC P0030 HO2S HEATER CONTROL CIRCUIT (BANK 1 SENSOR 1)
DTC P0031 HO2S HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 1)
DTC P0032 HO2S HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 1)
DTC P0037 HO2S HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 2)
DTC P0038 HO2S HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 2)
DTC P0102 MASS OR VOLUME AIR FLOW CIRCUIT LOW INPUT
DTC P0103 MASS OR VOLUME AIR FLOW CIRCUIT HIGH INPUT
DTC P0107 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT LOW INPUT
DTC P0108 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT HIGH INPUT
DTC P0112 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT LOW
DTC P0113 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT HIGH
DTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOW
DTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGH
DTC P0122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT LOW
DTC P0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT HIGH
DTC P0125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
DTC P0130 O2 SENSOR CIRCUIT (LEAN) (BANK 1 SENSOR 1)
DTC P0131 O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 1 SENSOR 1)
DTC P0132 O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 1 SENSOR 1)
DTC P0133 O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 1)
DTC P0134 O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1)
DTC P0137 O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 1 SENSOR 2)
DTC P0138 O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 1 SENSOR 2)
DTC P0139 O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 2)
DTC P0171 SYSTEM TOO LEAN (BANK 1)
DTC P0172 SYSTEM TOO RICH (BANK 1)
DTC P0222 THROTTLE/PEDAL POSITION SENSOR/SWITCH “B” CIRCUIT LOW
DTC P0223 THROTTLE/PEDAL POSITION SENSOR/SWITCH “B” CIRCUIT HIGH
DTC P0301 CYLINDER 1 MISFIRE DETECTED
DTC P0302 CYLINDER 2 MISFIRE DETECTED
DTC P0303 CYLINDER 3 MISFIRE DETECTED
DTC P0304 CYLINDER 4 MISFIRE DETECTED
DTC P0327 KNOCK SENSOR 1 CIRCUIT LOW (BANK 1 OR SINGLE SENSOR)
DTC P0328 KNOCK SENSOR 1 CIRCUIT HIGH (BANK 1 OR SINGLE SENSOR)
DTC P0335 CRANKSHAFT POSITION SENSOR “A” CIRCUIT
DTC P0340 CAMSHAFT POSITION SENSOR “A” CIRCUIT (BANK 1 OR SINGLE SENSOR)
DTC P0345 CAMSHAFT POSITION SENSOR “A” CIRCUIT (BANK 2)
DTC P0400 EXHAUST GAS RECIRCULATION FLOW
DTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1)
DTC P0458 EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT LOW
DTC P0459 EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT HIGH
DTC P0462 FUEL LEVEL SENSOR “A” CIRCUIT LOW
DTC P0463 FUEL LEVEL SENSOR “A” CIRCUIT HIGH
DTC P0500 VEHICLE SPEED SENSOR “A”
DTC P0512 STARTER REQUEST CIRCUIT
DTC P0600 SERIAL COMMUNICATION LINK
DTC P0604 INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR
DTC P0605 INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR
DTC P0607 THROTTLE CONTROL SYSTEM CIRCUIT RANGE/PERFORMANCE
DTC P0638 THROTTLE ACTUATOR CONTROL RANGE/PERFORMANCE (BANK 1)
DTC P0691 FAN 1 CONTROL CIRCUIT LOW
DTC P0692 FAN 1 CONTROL CIRCUIT HIGH
DTC P0700 TRANSMISSION CONTROL SYSTEM (MIL REQUEST)
DTC P0851 PARK/NEUTRAL SWITCH INPUT CIRCUIT LOW (AT MODEL)
DTC P0851 NEUTRAL SWITCH INPUT CIRCUIT LOW (MT MODEL)
DTC P0852 PARK/NEUTRAL SWITCH INPUT CIRCUIT HIGH (AT MODEL)
DTC P0852 NEUTRAL SWITCH INPUT CIRCUIT HIGH (MT MODEL)
DTC P1137 O2 SENSOR CIRCUIT (MID) (BANK 1 SENSOR 1)
DTC P1160 RETURN SPRING FAILURE
DTC P1492 EGR SOLENOID VALVE SIGNAL #1 CIRCUIT MALFUNCTION (LOW INPUT)
DTC P1493 EGR SOLENOID VALVE SIGNAL #1 CIRCUIT MALFUNCTION (HIGH INPUT)
DTC P1494 EGR SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION (LOW INPUT)
DTC P1495 EGR SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION (HIGH INPUT)
DTC P1496 EGR SOLENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION (LOW INPUT)
DTC P1497 EGR SOLENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION (HIGH INPUT)
DTC P1498 EGR SOLENOID VALVE SIGNAL #4 CIRCUIT MALFUNCTION (LOW INPUT)
DTC P1499 EGR SOLENOID VALVE SIGNAL #4 CIRCUIT MALFUNCTION (HIGH INPUT)
DTC P1518 STARTER SWITCH CIRCUIT LOW INPUT
DTC P1519 STARTER SW 2 SYSTEM CIRCUIT (OFF)
DTC P1520 STARTER SW 2 SYSTEM CIRCUIT (ON)
DTC P1521 BRAKE SWITCH CIRCUIT RANGE
DTC P1560 BACK-UP VOLTAGE CIRCUIT MALFUNCTION
DTC P1616 STARTER CUT RELAY SYSTEM CIRCUIT (LOW)
DTC P2088 INTAKE CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT LOW (BANK 1)
DTC P2089 INTAKE CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT HIGH (BANK 1)
DTC P2092 INTAKE CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT LOW (BANK 2)
DTC P2093 INTAKE CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT HIGH (BANK 2)
DTC P2100 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT/OPEN
DTC P2101 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT RANGE/PERFORMANCE
DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW
DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH
DTC P2109 THROTTLE/PEDAL POSITION SENSOR “A” MINIMUM STOP PERFORMANCE
DTC P2111 THROTTLE ACTUATOR CONTROL SYSTEM - STUCK OPEN
DTC P2122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT LOW INPUT
DTC P2123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT HIGH INPUT
DTC P2127 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT LOW INPUT
DTC P2128 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT HIGH INPUT
DTC P2135 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A”/“B” VOLTAGE CORRELATION
DTC P2138 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D”/“E” VOLTAGE CORRELATION
DTC P2228 BAROMETRIC PRESSURE CIRCUIT LOW
DTC P2229 BAROMETRIC PRESSURE CIRCUIT HIGH
DTC P2503 CHARGING SYSTEM VOLTAGE LOW
DTC P2504 CHARGING SYSTEM VOLTAGE HIGH

General Diagnostic Table
ENGINE (DIAGNOSTICS)(H4DOTC)
Basic Diagnostic Procedure
Check List for Interview
General Description
Electrical Component Location
Engine Control Module (ECM) I/O Signal
Engine Condition Data
Data Link Connector
General Scan Tool
Subaru Select Monitor
Read Diagnostic Trouble Code (DTC)
Inspection Mode
Drive Cycle
Clear Memory Mode
Compulsory Valve Operation Check Mode
System Operation Check Mode
Malfunction Indicator Light
PROCEDURE
ACTIVATION OF MALFUNCTION INDICATOR LIGHT
MALFUNCTION INDICATOR LIGHT DOES NOT COME ON
MALFUNCTION INDICATOR LIGHT DOES NOT GO OFF
MALFUNCTION INDICATOR LIGHT DOES NOT BLINK
MALFUNCTION INDICATOR LIGHT REMAINS BLINKING

Diagnostics for Engine Starting Failure
PROCEDURE
STARTER MOTOR CIRCUIT
CHECK POWER SUPPLY AND GROUND LINE OF ENGINE CONTROL MODULE (ECM)
IGNITION CONTROL SYSTEM
FUEL PUMP CIRCUIT
FUEL INJECTOR CIRCUIT

Diagnostic Procedure for Subaru Select Monitor Communication
List of Diagnostic Trouble Code (DTC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC P0011 INTAKE CAMSHAFT POSITION - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 1)
DTC P0016 CRANKSHAFT POSITION - CAMSHAFT POSITION CORRELATION (BANK1)
DTC P0018 CRANKSHAFT POSITION - CAMSHAFT POSITION CORRELATION (BANK2)
DTC P0021 INTAKE CAMSHAFT POSITION - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 2)
DTC P0030 HO2S HEATER CONTROL CIRCUIT (BANK 1 SENSOR 1)
DTC P0031 HO2S HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 1)
DTC P0032 HO2S HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 1)
DTC P0037 HO2S HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 2)
DTC P0038 HO2S HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 2)
DTC P0102 MASS OR VOLUME AIR FLOW CIRCUIT LOW INPUT
DTC P0103 MASS OR VOLUME AIR FLOW CIRCUIT HIGH INPUT
DTC P0107 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT LOW INPUT
DTC P0108 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT HIGH INPUT
DTC P0112 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT LOW
DTC P0113 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT HIGH
DTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOW
DTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGH
DTC P0122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT LOW
DTC P0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT HIGH
DTC P0125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
DTC P0131 O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 1 SENSOR 1)
DTC P0132 O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 1 SENSOR 1)
DTC P0133 O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 1)
DTC P0134 O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1)
DTC P0140 O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 2)
DTC P0171 SYSTEM TOO LEAN (BANK 1)
DTC P0172 SYSTEM TOO RICH (BANK 1)
DTC P0222 THROTTLE/PEDAL POSITION SENSOR/SWITCH “B” CIRCUIT LOW
DTC P0223 THROTTLE/PEDAL POSITION SENSOR/SWITCH “B” CIRCUIT HIGH
DTC P0230 FUEL PUMP PRIMARY CIRCUIT
DTC P0244 TURBO/SUPER CHARGER WASTEGATE SOLENOID “A” RANGE/PERFORMANCE
DTC P0245 TURBO/SUPER CHARGER WASTEGATE SOLENOID “A” LOW
DTC P0246 TURBO/SUPER CHARGER WASTEGATE SOLENOID “A” HIGH
DTC P0301 CYLINDER 1 MISFIRE DETECTED
DTC P0302 CYLINDER 2 MISFIRE DETECTED
DTC P0303 CYLINDER 3 MISFIRE DETECTED
DTC P0304 CYLINDER 4 MISFIRE DETECTED
DTC P0327 KNOCK SENSOR 1 CIRCUIT LOW (BANK 1 OR SINGLE SENSOR)
DTC P0328 KNOCK SENSOR 1 CIRCUIT HIGH (BANK 1 OR SINGLE SENSOR)
DTC P0335 CRANKSHAFT POSITION SENSOR “A” CIRCUIT
DTC P0340 CAMSHAFT POSITION SENSOR “A” CIRCUIT (BANK 1 OR SINGLE SENSOR)
DTC P0345 CAMSHAFT POSITION SENSOR “A” CIRCUIT (BANK 2)
DTC P0410 SECONDARY AIR INJECTION SYSTEM
DTC P0413 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE “A” CIRCUIT OPEN
DTC P0414 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE “A” CIRCUIT SHORTED
DTC P0418 SECONDARY AIR INJECTION SYSTEM CONTROL “A” CIRCUIT OPEN
DTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1)
DTC P0458 EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT LOW
DTC P0459 EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT HIGH
DTC P0462 FUEL LEVEL SENSOR “A” CIRCUIT LOW
DTC P0463 FUEL LEVEL SENSOR “A” CIRCUIT HIGH
DTC P0500 VEHICLE SPEED SENSOR “A”
DTC P0512 STARTER REQUEST CIRCUIT
DTC P0562 SYSTEM VOLTAGE LOW
DTC P0563 SYSTEM VOLTAGE HIGH
DTC P0600 SERIAL COMMUNICATION LINK
DTC P0604 INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR
DTC P0605 INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR
DTC P0607 THROTTLE CONTROL SYSTEM CIRCUIT RANGE/PERFORMANCE
DTC P0638 THROTTLE ACTUATOR CONTROL RANGE/PERFORMANCE (BANK 1)
DTC P0700 TRANSMISSION CONTROL SYSTEM (MIL REQUEST)
DTC P0851 PARK/NEUTRAL SWITCH INPUT CIRCUIT LOW (AT MODEL)
DTC P0851 NEUTRAL SWITCH INPUT CIRCUIT LOW (MT MODEL)
DTC P0852 PARK/NEUTRAL SWITCH INPUT CIRCUIT HIGH (AT MODEL)
DTC P0852 NEUTRAL SWITCH INPUT CIRCUIT HIGH (MT MODEL)
DTC P1160 RETURN SPRING FAILURE
DTC P1410 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPEN
DTC P1418 SECONDARY AIR INJECTION SYSTEM CONTROL “A” CIRCUIT SHORTED
DTC P1519 STARTER SW 2 SYSTEM CIRCUIT (OFF)
DTC P1520 STARTER SW 2 SYSTEM CIRCUIT (ON)
DTC P1560 BACK-UP VOLTAGE CIRCUIT MALFUNCTION
DTC P1616 STARTER CUT RELAY SYSTEM CIRCUIT (LOW)
DTC P2004 INTAKE MANIFOLD RUNNER CONTROL STUCK OPEN (BANK 1)
DTC P2005 INTAKE MANIFOLD RUNNER CONTROL STUCK OPEN (BANK 2)
DTC P2006 INTAKE MANIFOLD RUNNER CONTROL STUCK CLOSED (BANK 1)
DTC P2007 INTAKE MANIFOLD RUNNER CONTROL STUCK CLOSED (BANK 2)
DTC P2008 INTAKE MANIFOLD RUNNER CONTROL CIRCUIT / OPEN (BANK 1)
DTC P2009 INTAKE MANIFOLD RUNNER CONTROL CIRCUIT LOW (BANK 1)
DTC P2011 INTAKE MANIFOLD RUNNER CONTROL CIRCUIT / OPEN (BANK 2)
DTC P2012 INTAKE MANIFOLD RUNNER CONTROL CIRCUIT LOW (BANK 2)
DTC P2016 INTAKE MANIFOLD RUNNER POSITION SENSOR / SWITCH CIRCUIT LOW (BANK 1)
DTC P2017 INTAKE MANIFOLD RUNNER POSITION SENSOR / SWITCH CIRCUIT HIGH (BANK 1)
DTC P2021 INTAKE MANIFOLD RUNNER POSITION SENSOR / SWITCH CIRCUIT LOW (BANK 2)
DTC P2022 INTAKE MANIFOLD RUNNER POSITION SENSOR / SWITCH CIRCUIT HIGH (BANK 2)
DTC P2088 INTAKE CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT LOW (BANK 1)
DTC P2089 INTAKE CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT HIGH (BANK 1)
DTC P2092 INTAKE CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT LOW (BANK 2)
DTC P2093 INTAKE CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT HIGH (BANK 2)
DTC P2101 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT RANGE/PERFORMANCE
DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW
DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH
DTC P2109 THROTTLE/PEDAL POSITION SENSOR “A” MINIMUM STOP PERFORMANCE
DTC P2122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT LOW INPUT
DTC P2123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT HIGH INPUT
DTC P2127 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT LOW INPUT
DTC P2128 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT HIGH INPUT
DTC P2135 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A”/“B” VOLTAGE CORRELATION
DTC P2138 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D”/“E” VOLTAGE CORRELATION
DTC P2419 EVAPORATIVE EMISSION SYSTEM SWITCHING VALVE CONTROL CIRCUIT LOW
DTC P2420 EVAPORATIVE EMISSION SYSTEM SWITCHING VALVE CONTROL CIRCUIT HIGH
DTC P2432 SECONDARY AIR INJECTION SYSTEM AIR FLOW /PRESSURE SENSOR CIRCUIT LOW
DTC P2433 SECONDARY AIR INJECTION SYSTEM AIR FLOW /PRESSURE SENSOR CIRCUIT HIGH
DTC P2441 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK CLOSED (BANK 1)
DTC P2444 SECONDARY AIR INJECTION SYSTEM PUMP STUCK ON

General Diagnostic Table
ENGINE (DIAGNOSTICS)(H4DOTC DIESEL)
Basic Diagnostic Procedure
Check List for Interview
General Description
Electrical Component Location
Engine Control Module (ECM) I/O Signal
Data Link Connector
General Scan Tool
Subaru Select Monitor
Read Diagnostic Trouble Code (DTC)
Inspection Mode
Drive Cycle
Clear Memory Mode
Compulsory Valve Operation Check Mode
System Operation Check Mode
Maintenance Mode
Injector Code Registration Mode
Compulsory Learning Mode
DPF Warning Light
PROCEDURE
ACTIVATION OF DPF WARNING LIGHT
DPF WARNING LIGHT DOES NOT COME ON
DPF WARNING LIGHT DOES NOT GO OFF
DPF WARNING LIGHT REMAINS BLINKING

Malfunction Indicator Light
PROCEDURE
ACTIVATION OF MALFUNCTION INDICATOR LIGHT
MALFUNCTION INDICATOR LIGHT DOES NOT COME ON
MALFUNCTION INDICATOR LIGHT DOES NOT GO OFF
MALFUNCTION INDICATOR LIGHT DOES NOT BLINK
MALFUNCTION INDICATOR LIGHT REMAINS BLINKING

Diagnostics for Engine Starting Failure
PROCEDURE
STARTER MOTOR CIRCUIT
CHECK POWER SUPPLY AND GROUND LINE OF ENGINE CONTROL MODULE (ECM)
SUB FUEL PUMP CIRCUIT
FUEL INJECTOR CIRCUIT
GLOW PLUG CIRCUIT

Diagnostic Procedure for Subaru Select Monitor Communication
List of Diagnostic Trouble Code (DTC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC P0016 CRANKSHAFT POSITION - CAMSHAFT POSITION CORRELATION (BANK1)
DTC P0046 WASTEGATE VALVE CIRCUIT (LOW)
DTC P0088 FUEL PRESSURE ABNORMAL (HIGH)
DTC P0089 PRESSURE LIMITER VALVE OPENING PROBLEM
DTC P0093 FUEL SYSTEM ABNORMAL (LEAK)
DTC P0097 INTAKE AIR TEMPERATURE SENSOR #2 CIRCUIT (LOW)
DTC P0098 INTAKE AIR TEMPERATURE SENSOR #2 CIRCUIT (HIGH)
DTC P0101 MASS OR VOLUME AIR FLOW CIRCUIT RANGE/PERFORMANCE
DTC P0102 MASS OR VOLUME AIR FLOW CIRCUIT LOW INPUT
DTC P0103 MASS OR VOLUME AIR FLOW CIRCUIT HIGH INPUT
DTC P0106 PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE
DTC P0107 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT LOW INPUT
DTC P0108 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT HIGH INPUT
DTC P0112 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT LOW
DTC P0113 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT HIGH
DTC P0116 ENGINE COOLANT TEMP. SENSOR CIRCUIT RANGE/PERFORMANCE
DTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOW
DTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGH
DTC P0122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT LOW
DTC P0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT HIGH
DTC P0182 FUEL TEMPERATURE SENSOR “A” CIRCUIT LOW INPUT
DTC P0183 FUEL TEMPERATURE SENSOR “A” CIRCUIT HIGH INPUT
DTC P0191 FUEL PRESSURE SENSOR PERFORMANCE
DTC P0192 FUEL RAIL PRESSURE SENSOR CIRCUIT LOW
DTC P0193 FUEL RAIL PRESSURE SENSOR CIRCUIT HIGH
DTC P0201 CYLINDER 1 - INJECTOR CIRCUIT
DTC P0202 CYLINDER 2 - INJECTOR CIRCUIT
DTC P0203 CYLINDER 3 - INJECTOR CIRCUIT
DTC P0204 CYLINDER 4 - INJECTOR CIRCUIT
DTC P0219 ENGINE OVERRUNNING FAILURE
DTC P0301 CYLINDER 1 MISFIRE DETECTED
DTC P0302 CYLINDER 2 MISFIRE DETECTED
DTC P0303 CYLINDER 3 MISFIRE DETECTED
DTC P0304 CYLINDER 4 MISFIRE DETECTED
DTC P0335 CRANKSHAFT POSITION SENSOR “A” CIRCUIT
DTC P0336 CRANKSHAFT POSITION SENSOR “A” CIRCUIT RANGE/PERFORMANCE
DTC P0340 CAMSHAFT POSITION SENSOR A CIRCUIT
DTC P0341 CAMSHAFT POSITION SENSOR “A” CIRCUIT RANGE/PERFORMANCE (BANK 1 OR SINGLE SENSOR)
DTC P0403 EGR SYSTEM FAILURE (CIRCUIT DUTY)
DTC P0404 EGR OPERATION CIRCUIT ABNORMAL
DTC P0405 EGR POSITION SENSOR CIRCUIT (LOW)
DTC P0406 EGR POSITION SENSOR CIRCUIT (HIGH)
DTC P0409 EGR POSITION SENSOR PERFORMANCE
DTC P0462 FUEL LEVEL SENSOR “A” CIRCUIT LOW
DTC P0463 FUEL LEVEL SENSOR “A” CIRCUIT HIGH
DTC P0500 VEHICLE SPEED SENSOR “A”
DTC P0512 STARTER REQUEST CIRCUIT
DTC P0545 EXHAUST GAS TEMPERATURE SENSOR CIRCUIT MALFUNCTION (LOW INPUT)
DTC P0546 EXHAUST GAS TEMPERATURE SENSOR CIRCUIT MALFUNCTION (HIGH INPUT)
DTC P0600 SERIAL COMMUNICATION LINK
DTC P0604 INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR
DTC P0605 INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR
DTC P0606 MICRO-COMPUTER (CPU FAILURE)
DTC P0628 SUCTION CONTROL VALVE CIRCUIT (GROUND SHORT)
DTC P0629 SUCTION CONTROL VALVE CIRCUIT (BATTERY SHORT)
DTC P0638 THROTTLE ACTUATOR CONTROL RANGE/PERFORMANCE (BANK 1)
DTC P0704 CLUTCH SWITCH CIRCUIT
DTC P0850 NEUTRAL POSITION SENSOR CIRCUIT
DTC P1201 INJECTOR CODE FAILURE (NOT WRITTEN)
DTC P1202 INJECTOR CODE DATA ABNORMAL
DTC P1203 INJECTOR CODE INPUT FAILURE
DTC P1213 INJECTOR DRIVER (LOW CHARGE)
DTC P1214 INJECTOR DRIVER (OVER CHARGE)
DTC P1232 FUEL PUMP MALFUNCTION
DTC P1233 FUEL PRESSURE ABNORMAL (FUEL PUMP FAILURE 1)
DTC P1234 FUEL PRESSURE ABNORMAL (FUEL PUMP FAILURE 2)
DTC P1380 GLOW RELAY CIRCUIT (LOW)
DTC P1382 GLOW RELAY CIRCUIT (HIGH)
DTC P1466 DPF SUBSTRATE DAMAGED
DTC P1467 ASH OVERFILL
DTC P1468 OIL DILUTION
DTC P1469 DPF LIMP-HOME MODE
DTC P1472 DPF INLET/OUTLET PRESSURE DEVIATION SENSOR (LOW)
DTC P1473 DPF INLET/OUTLET PRESSURE DEVIATION SENSOR (HIGH)
DTC P1519 STARTER SW 2 SYSTEM CIRCUIT (OFF)
DTC P1520 STARTER SW 2 SYSTEM CIRCUIT (ON)
DTC P1560 BACK-UP VOLTAGE CIRCUIT MALFUNCTION
DTC P1607 MONITORING CIRCUIT ABNORMAL
DTC P1616 STARTER CUT RELAY SYSTEM CIRCUIT (LOW)
DTC P2032 EXHAUST TEMPERATURE SENSOR2 (LOW)
DTC P2033 EXHAUST TEMPERATURE SENSOR2 (HIGH)
DTC P2101 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT RANGE/PERFORMANCE
DTC P2122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT LOW INPUT
DTC P2123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT HIGH INPUT
DTC P2127 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT LOW INPUT
DTC P2128 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT HIGH INPUT
DTC P2138 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D”/“E” VOLTAGE CORRELATION
DTC P2146 FUEL INJECTOR POWER SUPPLY A OPEN CIRCUIT
DTC P2147 INJECTOR DRIVER (GROUND SHORT)
DTC P2148 INJECTOR DRIVER (BATTERY SHORT)
DTC P2149 FUEL INJECTOR POWER SUPPLY B OPEN CIRCUIT
DTC P2228 BAROMETRIC PRESSURE CIRCUIT LOW
DTC P2229 BAROMETRIC PRESSURE CIRCUIT HIGH
DTC P2413 EGR VALVE STICKS
DTC P2633 FUEL PUMP “B” CONTROL CIRCUIT LOW
DTC P2634 FUEL PUMP “B” CONTROL CIRCUIT HIGH
DTC P2635 SUCTION CONTROL VALVE STICKS

Diagnostic Procedure without Diagnostic Trouble Code (DTC)
General Diagnostic Table
AUTOMATIC TRANSMISSION (DIAGNOSTICS)(4AT)
Basic Diagnostic Procedure
Check List for Interview
General Description
Electrical Component Location
Transmission Control Module (TCM) I/O Signal
Subaru Select Monitor
Read Current Data
Read Diagnostic Trouble Code (DTC)
Clear Memory Mode
Inspection Mode
Learning Control
AT OIL TEMP Warning Light Display
Diagnostic Procedure for Subaru Select Monitor Communication
List of Diagnostic Trouble Code (DTC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT (PRNDL INPUT)
DTC P0712 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT LOW INPUT
DTC P0713 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT HIGH INPUT
DTC P0715 INPUT/TURBINE SPEED SENSOR CIRCUIT
DTC P0719 BRAKE SWITCH CIRCUIT LOW
DTC P0720 OUTPUT SPEED SENSOR CIRCUIT
DTC P0724 BRAKE SWITCH CIRCUIT HIGH
DTC P0731 GEAR 1 INCORRECT RATIO
DTC P0732 GEAR 2 INCORRECT RATIO
DTC P0733 GEAR 3 INCORRECT RATIO
DTC P0734 GEAR 4 INCORRECT RATIO
DTC P0736 REVERSE INCORRECT RATIO
DTC P0741 TORQUE CONVERTER CLUTCH CIRCUIT PERFORMANCE OR STUCK OFF
DTC P0743 TORQUE CONVERTER CLUTCH CIRCUIT ELECTRICAL
DTC P0748 PRESSURE CONTROL SOLENOID “A” ELECTRICAL
DTC P0753 SHIFT SOLENOID “A” ELECTRICAL
DTC P0758 SHIFT SOLENOID “B” ELECTRICAL
DTC P0763 SHIFT SOLENOID “C” ELECTRICAL
DTC P0768 SHIFT SOLENOID “D” ELECTRICAL
DTC P0801 REVERSE INHIBIT CONTROL CIRCUIT
DTC P1706 AT VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION (REAR WHEEL)
DTC P1707 AT AWD SOLENOID VALVE CIRCUIT MALFUNCTION
DTC P1718 CAN COMMUNICATION CIRCUIT
DTC P1817 SPORT MODE SWITCH CIRCUIT

Diagnostic Procedure without Diagnostic Trouble Code (DTC)
Diagnostics with Phenomenon
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
Basic Diagnostic Procedure
Check List for Interview
General Description
Electrical Component Location
Control Module I/O Signal
Subaru Select Monitor
Read Diagnostic Trouble Code (DTC)
Inspection Mode
Clear Memory Mode
Warning Light Illumination Pattern
INSPECTION
VDC WARNING LIGHT, VDC OFF INDICATOR LIGHT AND VDC INDICATOR LIGHT DO NOT COME ON
ABS WARNING LIGHT DOES NOT COME ON
HILL START ASSIST WARNING LIGHT DOES NOT COME ON
ABS WARNING LIGHT DOES NOT GO OFF
HILL START ASSIST WARNING LIGHT DOES NOT GO OFF
VDC INDICATOR LIGHT DOES NOT GO OFF
VDC WARNING LIGHT AND VDC OFF INDICATOR LIGHT DO NOT GO OFF
BRAKE WARNING LIGHT DOES NOT GO OFF

List of Diagnostic Trouble Code (DTC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC C0021 FRONT RIGHT ABS SENSOR CIRCUIT OPEN OR SHORT
DTC C0023 FRONT LEFT ABS SENSOR CIRCUIT OPEN OR SHORT
DTC C0025 REAR RIGHT ABS SENSOR CIRCUIT OPEN OR SHORT
DTC C0027 REAR LEFT ABS SENSOR CIRCUIT OPEN OR SHORT
DTC C0022 FRONT RIGHT ABS SENSOR SIGNAL
DTC C0024 FRONT LEFT ABS SENSOR SIGNAL
DTC C0026 REAR RIGHT ABS SENSOR SIGNAL
DTC C0028 REAR LEFT ABS SENSOR SIGNAL
DTC C0029 ANY OF WHEEL SENSORS SIGNAL
DTC C0031 FR HOLD VALVE MALFUNCTION
DTC C0032 FR PRESSURE REDUCING VALVE MALFUNCTION
DTC C0033 FL HOLD VALVE MALFUNCTION
DTC C0034 FL PRESSURE REDUCING VALVE MALFUNCTION
DTC C0035 RR HOLD VALVE MALFUNCTION
DTC C0036 RR PRESSURE REDUCING VALVE MALFUNCTION
DTC C0037 RL HOLD VALVE MALFUNCTION
DTC C0038 RL PRESSURE REDUCING VALVE MALFUNCTION
DTC C0039 ANY ONE OF FOUR SOLENOID VALVES
DTC C0061 NORMAL OPENING VALVE 1 MALFUNCTION
DTC C0062 NORMAL OPENING VALVE 2 MALFUNCTION
DTC C0063 NORMAL CLOSING VALVE 1 MALFUNCTION
DTC C0064 NORMAL CLOSING VALVE 2 MALFUNCTION
DTC C0041 ECM
DTC C0041 PARAMETER SELECTION ERROR
DTC C0042 POWER SUPPLY VOLTAGE FAILURE
DTC C0044 TCM COMMUNICATION CIRCUIT
DTC C0045 INCORRECT VDC CONTROL MODULE SPECIFICATIONS
DTC C0045 TCM MALFUNCTION
DTC C0047 CAN COMMUNICATION
DTC C0051 VALVE RELAY
DTC C0052 MOTOR AND MOTOR RELAY OFF FAILURE
DTC C0052 MOTOR AND MOTOR RELAY ON FAILURE
DTC C0052 MOTOR MALFUNCTION
DTC C0054 BLS CIRCUIT OPEN
DTC C0054 BLS ON MALFUNCTION
DTC C0054 BLS OFF MALFUNCTION
DTC C0056 G SENSOR SIGNAL
DTC C0057 ECM COMMUNICATION CIRCUIT
DTC C0057 ECM CONTROL SYSTEM
DTC C0071 STEERING ANGLE SENSOR OFFSET IS TOO BIG
DTC C0071 CHANGE RANGE OF STEERING ANGLE SENSOR IS TOO BIG
DTC C0071 STEER ANGLE SENSOR OP
DTC C0071 STEERING ANGLE SENSOR MALFUNCTION
DTC C0072 ABNORMAL YAW RATE SENSOR OUTPUT
DTC C0072 VOLTAGE INPUTTED TO YAW RATE SENSOR EXCEEDS SPECIFICATION
DTC C0072 CHANGE RANGE OF YAW RATE SENSOR SIGNAL IS TOO BIG
DTC C0072 YAW RATE SENSOR COMMUNICATION
DTC C0072 SENSOR TYPE ABNORMAL
DTC C0073 LATERAL G SENSOR OFFSET IS TOO BIG
DTC C0073 ABNORMAL LATERAL G SENSOR OUTPUT
DTC C0073 EXCESSIVE LATERAL G SENSOR SIGNAL
DTC C0074 PRESSURE SENSOR
DTC C0075 REVERSE SIGNAL
DTC C0076 CLUTCH SIGNAL
DTC C0081 SYSTEM FAILURE

General Diagnostic Table
POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)
Basic Diagnostic Procedure
Check List for Interview
General Description
Electrical Component Location
Control Module I/O Signal
Subaru Select Monitor
Read Diagnostic Trouble Code (DTC)
Inspection Mode
Clear Memory Mode
STEERING Warning Light
List of Diagnostic Trouble Code (DTC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC 11 TORQUE SENSOR FAILURE 1 (MAIN)
DTC 12 TORQUE SENSOR FAILURE 2 (SUB)
DTC 13 TORQUE SENSOR FAILURE 3 (MUCH TOLERANCE)
DTC 14 TORQUE SENSOR POWER SUPPLY FAILURE
DTC 21 MOTOR FAILURE 1 (MOTOR)
DTC 22 MOTOR FAILURE 3 (ANGLE ABNORMAL)
DTC 31 ECU FAILURE 1 (CPU FAILURE)
DTC 32 ECU FAILURE 1 (PERIPHERAL CIRCUIT FAILURE)
DTC 33 ECM FAILURE 3 (BOARD TEMPERATURE SENSOR FAILURE)
DTC 41 VEHICLE SPEED IS ABNORMAL
DTC 42 CAN ERROR
DTC 51 POWER SUPPLY VOLTAGE FAILURE
DTC 54 POWER SUPPLY RELAY FAILURE
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
Basic Diagnostic Procedure
General Description
Electrical Component Location
Auto A/C Control Module I/O Signal
Diagnostic Chart for Self-Diagnosis
Diagnostics for A/C System Malfunction
A/C OR SELF-DIAGNOSIS SYSTEMS DO NOT OPERATE
BLOWER MOTOR DOES NOT ROTATE
BLOWER MOTOR TURNS AROUND EARLY
COMPARTMENT TEMPERATURE DOES NOT CHANGE, OR A/C SYSTEM DOES NOT RESPOND PROMPTLY

Diagnostic Procedure for Actuators
Diagnostic Procedure for Sensors
Diagnostics with Phenomenon
AIRBAG SYSTEM (DIAGNOSTICS)
Basic Diagnostic Procedure
Check List for Interview
General Description
Electrical Component Location
Airbag Connector
Airbag Control Module I/O Signal
Subaru Select Monitor
Read Diagnostic Trouble Code (DTC)
Inspection Mode
Clear Memory Mode
Airbag Warning Light Illumination Pattern
Airbag Warning Light Failure
List of Diagnostic Trouble Code (DTC)
Diagnostic Chart with Trouble Code
DTC 11 DRIVER’S AIRBAG FAILURE
DTC 12 PASSENGER’S AIRBAG FAILURE
DTC 15 DRIVER’S AIRBAG FAILURE
DTC 16 PASSENGER’S AIRBAG FAILURE
DTC 21 AIRBAG ECM FAILURE
DTC 22 FRONT AIRBAG FIRING OUTPUT
DTC 33 FRONT SUB SENSOR RH FAILURE
DTC 34 FRONT SUB SENSOR LH FAILURE
DTC 41 SIDE AIRBAG RH FAILURE
DTC 42 SIDE AIRBAG LH FAILURE
DTC 45 SIDE AIRBAG RH FAILURE
DTC 46 SIDE AIRBAG LH FAILURE
DTC 53 SIDE AIRBAG SENSOR RH FAILURE
DTC 54 SIDE AIRBAG SENSOR LH FAILURE
DTC 55 SIDE CURTAIN AIRBAG FIRING OUTPUT
DTC 58 CURTAIN AIRBAG SENSOR RH FAILURE
DTC 59 CURTAIN AIRBAG SENSOR LH FAILURE
DTC 61 BELT PRETENSIONER RH FAILURE
DTC 62 BELT PRETENSIONER LH FAILURE
DTC 65 BELT PRETENSIONER RH FAILURE
DTC 66 BELT PRETENSIONER LH FAILURE
DTC 81 LAP SEAT BELT PRETENSIONER FAILURE
DTC 85 LAP SEAT BELT PRETENSIONER FAILURE
DTC 91 CURTAIN AIRBAG MODULE RH FAILURE
DTC 92 CURTAIN AIRBAG MODULE LH FAILURE
DTC 95 CURTAIN AIRBAG MODULE RH FAILURE
DTC 96 CURTAIN AIRBAG MODULE LH FAILURE
DTC E2 FRONT SENSOR BUS RH COMMUNICATION ERROR
DTC E3 FRONT SENSOR BUS RH COMMUNICATION ERROR
DTC E4 FRONT SENSOR BUS RH COMMUNICATION ERROR
DTC E6 FRONT SENSOR BUS LH COMMUNICATION ERROR
DTC E7 FRONT SENSOR BUS LH COMMUNICATION ERROR
DTC E8 FRONT SENSOR BUS LH COMMUNICATION ERROR
DTC E9 SIDE SENSOR BUS RH COMMUNICATION ERROR
DTC EA SIDE SENSOR BUS RH COMMUNICATION ERROR
DTC EB SIDE SENSOR BUS RH COMMUNICATION ERROR
DTC EC SIDE SENSOR BUS RH COMMUNICATION ERROR
DTC ED SIDE SENSOR BUS RH COMMUNICATION ERROR
DTC EE SIDE SENSOR BUS RH COMMUNICATION ERROR
DTC F1 SIDE SENSOR BUS LH COMMUNICATION ERROR
DTC F2 SIDE SENSOR BUS LH COMMUNICATION ERROR
DTC F3 SIDE SENSOR BUS LH COMMUNICATION ERROR
DTC F4 SIDE SENSOR BUS LH COMMUNICATION ERROR
DTC F5 SIDE SENSOR BUS LH COMMUNICATION ERROR
DTC F6 SIDE SENSOR BUS LH COMMUNICATION ERROR
DTC F8 SATELLITE SENSOR BUS COMMUNICATION ERROR
DTC F9 SATELLITE SENSOR BUS COMMUNICATION ERROR
DTC FA SATELLITE SENSOR BUS COMMUNICATION ERROR
DTC 3A FRONT SUB SENSOR RH FALSE INSTALLATION
DTC 3B FRONT SUB SENSOR LH FALSE INSTALLATION
DTC 3C SATELLITE SENSOR BUS FAILURE
DTC 3D SATELLITE SENSOR FALSE INSTALLATION
DTC 5A SIDE AIRBAG SENSOR RH FALSE INSTALLATION
DTC 5B SIDE AIRBAG SENSOR LH FALSE INSTALLATION
DTC 5C CURTAIN AIRBAG SENSOR RH FALSE INSTALLATION
DTC 5D CURTAIN AIRBAG SENSOR LH FALSE INSTALLATION
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
Basic Diagnostic Procedure
General Description
Electrical Component Location
Engine Control Module (ECM) I/O Signal
Subaru Select Monitor
Read Cancel Code
Diagnostics with Phenomenon
List of Cancel Code
Diagnostic Procedure with Cancel Code
IMMOBILIZER (DIAGNOSTICS)
Basic Diagnostic Procedure
General Description
Electrical Component Location
Immobilizer Control Module I/O Signal
Subaru Select Monitor
Read Diagnostic Trouble Code (DTC)
Clear Memory Mode
Diagnostics Chart for Security Indicator Light
List of Diagnostic Trouble Code (DTC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC P0513 INCORRECT IMMOBILIZER KEY
DTC P1570 ANTENNA
DTC P1571 REFERENCE CODE INCOMPATIBILITY
DTC P1572 IMM CIRCUIT FAILURE (EXCEPT ANTENNA CIRCUIT)
DTC P1574 KEY COMMUNICATION FAILURE
DTC P1576 EGI CONTROL MODULE EEPROM
DTC P1577 IMM CONTROL MODULE EEPROM
DTC P1578 METER FAILURE
DTC B1401 M COLLATION NG
DTC B1402 IMMOBILIZER KEY COLLATION NG
DTC B1403 E/G REQUEST NG
LAN SYSTEM (DIAGNOSTICS)
Basic Diagnostic Procedure
Check List for Interview
General Description
Electrical Component Location
Control Module I/O Signal
Subaru Select Monitor
Read Diagnostic Trouble Code (DTC)
Clear Memory Mode
Read Current Data
User Customizing
Registration Body Integrated Unit
Function Check
List of Diagnostic Trouble Code (DTC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1100 INTEG. UNIT SYSTEM ERROR
DTC B1101 BATT P/SUPPLY MALFUNCTION CONT
DTC B1102 BATT P/SUPPLY MALFUNCTION BACKUP
DTC B1103 IGNITION POWER FAILURE
DTC B1104 ACC POWER FAILURE
DTC B1105 KEY INTERLOCK CIRCUIT ABNORMAL
DTC B1106 SHIFT LOCK CIRCUIT FAILURE
DTC U1201 CAN-HS COUNTER ABNORMAL
DTC U1202 CAN-HS BUS OFF
DTC U1211 CAN-HS ECM DATA ABNORMAL
DTC U1212 CAN-HS TCM DATA ABNORMAL
DTC U1213 CAN-HS VDC/ABS DATA ABNORMAL
DTC U1217 CAN-HS EPS DATA ABNORMAL
DTC U1221 CAN-HS ECM NO-RECEIVE DATA
DTC U1222 CAN-HS TCM NO-RECEIVE DATA
DTC U1223 CAN-HS VDC/ABS NO-RECEIVE DATA
DTC U1227 CAN-HS EPS NO-RECEIVE DATA
DTC U1300 CAN-LS MALFUNCTION
DTC U1301 CAN-LS COUNTER ABNORMAL
DTC U1302 CAN-LS BUS OFF
DTC U1303 WAKE-UP LINE ABNORMAL
DTC U1311 CAN-LS METER UNIT DATA ABNORMAL
DTC U1321 CAN-LS METER NO-RECEIVE DATA
DTC U1327 CAN-LS G/W NO-RECEIVE DATA
DTC B1404 SMART REGISTRATION FAILURE
DTC B1500 KEYLESS UART COM. MALFUNCTION

General Diagnostic Table
KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)
Basic Diagnostic Procedure
Check List for Interview
General Description
Electrical Component Location
Control Module I/O Signal
Subaru Select Monitor
Read Diagnostic Trouble Code (DTC)
Read Current Data
Clear Memory Mode
Keyless Access System Check
Power Supply ECM Output Check
Collation ECM Output Check
List of Diagnostic Trouble Code (DTC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2100 PUSH START SW SIGNAL ABNORMAL
DTC B2101 SUBMERGING CIRCUIT ABNORMAL
DTC B2102 ACCR CIRCUIT ABNORMAL
DTC B2103 STSW CIRCUIT ABNORMAL
DTC B2104 ACC CIRCUIT ABNORMAL
DTC B2105 IGN2 EXTERNAL CIRCUIT ABNORMAL
DTC B2106 IGN1 EXTERNAL CIRCUIT ABNORMAL
DTC B2107 IGN SYSTEM FUSE OPEN OR IGN CIRCUIT ABNORMAL
DTC B2110 KEY COLLATION ABNORMAL
DTC B2111 STEERING LOCK UNLOCK ABNORMAL
DTC B2112 LOCAL COMMUNICATION BETWEEN COLLATED ECMS IS ABNORMAL
DTC B2113 DRIVING POSSIBLE SIGNAL ABNORMAL
DTC B2114 STEERING LOCK POSITION SIGNAL ABNORMAL
DTC B2115 VEHICLE SPEED SENSOR ABNORMAL DETECTION
DTC B2116 VEHICLE SPEED SIGNAL ABNORMAL
DTC B2117 P SIGNAL ABNORMAL
DTC B2207 ABNORMAL REMOTE CONTROL KEY INPUT
DTC B2206 REMOTE CONTROL ENGINE STARTER COMMUNICATION COLLATION NG
DTC B2205 ABNORMAL STEERING LOCK ECM DRIVER
DTC B2204 ABNORMAL STEERING LOCK POWER SUPPLY CIRCUIT (ABNORMALITY ON THE POWER SUPPLY ECM SIDE)
DTC B2203 ABNORMAL IMMOBILIZER POWER SUPPLY
DTC B2202 ABNORMAL ANTENNA COIL
DTC B2201 ABNORMAL LIN COMMUNICATION
DTC B2200 STEERING LOCK ECM NO RESPONSE
DTC B2217 ID CODE BOX NO RESPONSE
DTC B2216 IGN1 ABNORMAL INPUT
DTC B2215 ABNORMAL ID CODE BOX (ABNORMAL EEPROM)
DTC B2000 CAN-LS SYSTEM COMMUNICATION SUSPENSION DIAGNOSIS (BODY INTEGRATED UNIT)
DTC B2001 CAN-LS BD_WAKE CAN-LS DISCREPANCY
DTC B2002 CAN-LS BD_WAKE OPEN OR BATTERY SHORT
DTC B2003 SSP SYSTEM COMMUNICATION BUS GND SHORT-CIRCUIT
DTC B2004 SSP SYSTEM COMMUNICATION BUS BATTERY SHORT-CIRCUIT
DTC B2005 SSP SYSTEM COMMUNICATION SUSPENSION DIAGNOSIS (BF)
DTC B2006 SSP SYSTEM COMMUNICATION SUSPENSION DIAGNOSIS (POWER SUPPLY ECM)
DTC B2007 SSP SYSTEM COMMUNICATION SUSPENSION DIAGNOSIS (COLLATION ECM)
DTC B2017 CAN-LS SYSTEM COMMUNICATION SUSPENSION DIAGNOSIS (METER)
DTC P1571 REFERENCE CODE INCOMPATIBILITY
DTC P1572 IMM CIRCUIT FAILURE (EXCEPT ANTENNA CIRCUIT)
DTC P1576 EGI CONTROL MODULE EEPROM

General Diagnostic Table
Diagnostics with Phenomenon