ENGINE (DIAGNOSTICS)(H4SO)
Basic Diagnostic ProcedureCheck List for InterviewGeneral DescriptionElectrical Component LocationEngine Control Module (ECM) I/O SignalEngine Condition DataData Link ConnectorGeneral Scan ToolSubaru Select MonitorRead Diagnostic Trouble Code (DTC)Inspection ModeDrive CycleClear Memory ModeCompulsory Valve Operation Check ModeSystem Operation Check ModeMalfunction Indicator Light
PROCEDUREACTIVATION OF MALFUNCTION INDICATOR LIGHTMALFUNCTION INDICATOR LIGHT DOES NOT COME ONMALFUNCTION INDICATOR LIGHT DOES NOT GO OFF
Diagnostics for Engine Starting FailurePROCEDURESTARTER MOTOR CIRCUITCHECK POWER SUPPLY AND GROUND LINE OF ENGINE CONTROL MODULE (ECM)IGNITION CONTROL SYSTEMFUEL PUMP CIRCUITFUEL INJECTOR CIRCUIT
List of Diagnostic Trouble Code (DTC)Diagnostic Procedure with Diagnostic Trouble Code (DTC)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 INPUTDTC P0103 MASS OR VOLUME AIR FLOW CIRCUIT HIGH INPUTDTC P0107 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT LOW INPUTDTC P0108 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT HIGH INPUTDTC P0112 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT LOWDTC P0113 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT HIGHDTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOWDTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGHDTC P0122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT LOWDTC P0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT HIGHDTC P0125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROLDTC 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 LOWDTC P0223 THROTTLE/PEDAL POSITION SENSOR/SWITCH “B” CIRCUIT HIGHDTC P0301 CYLINDER 1 MISFIRE DETECTEDDTC P0302 CYLINDER 2 MISFIRE DETECTEDDTC P0303 CYLINDER 3 MISFIRE DETECTEDDTC P0304 CYLINDER 4 MISFIRE DETECTEDDTC 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” CIRCUITDTC P0340 CAMSHAFT POSITION SENSOR “A” CIRCUIT (BANK 1 OR SINGLE SENSOR)DTC P0400 EXHAUST GAS RECIRCULATION FLOWDTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1)DTC P0458 EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT LOWDTC P0459 EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT HIGHDTC P0462 FUEL LEVEL SENSOR “A” CIRCUIT LOWDTC P0463 FUEL LEVEL SENSOR “A” CIRCUIT HIGHDTC P0502 VEHICLE SPEED SENSOR “A” CIRCUIT LOW INPUTDTC P0503 VEHICLE SPEED SENSOR “A” INTERMITTENT/ERRATIC/HIGHDTC P0512 STARTER REQUEST CIRCUITDTC P0519 IDLE AIR CONTROL SYSTEM PERFORMANCEDTC P0562 SYSTEM VOLTAGE LOWDTC P0563 SYSTEM VOLTAGE HIGHDTC P0600 SERIAL COMMUNICATION LINKDTC P0604 INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERRORDTC P0605 INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERRORDTC P0607 CONTROL MODULE PERFORMANCEDTC P0638 THROTTLE ACTUATOR CONTROL RANGE/PERFORMANCE (BANK 1)DTC P0691 FAN 1 CONTROL CIRCUIT LOWDTC P0692 FAN 1 CONTROL CIRCUIT HIGHDTC 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 FAILUREDTC 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 INPUTDTC P1560 BACK-UP VOLTAGE CIRCUIT MALFUNCTIONDTC 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 P2101 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT RANGE/PERFORMANCEDTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOWDTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGHDTC P2109 THROTTLE/PEDAL POSITION SENSOR “A” MINIMUM STOP PERFORMANCEDTC P2122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT LOW INPUTDTC P2123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT HIGH INPUTDTC P2127 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT LOW INPUTDTC P2128 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT HIGH INPUTDTC P2135 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A”/“B” VOLTAGE CORRELATIONDTC P2138 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D”/“E” VOLTAGE CORRELATIONDTC P2503 CHARGING SYSTEM VOLTAGE LOWDTC P2504 CHARGING SYSTEM VOLTAGE HIGH
General Diagnostic TableENGINE (DIAGNOSTICS)(H4DO)Basic Diagnostic ProcedureCheck List for InterviewGeneral DescriptionElectrical Component LocationEngine Control Module (ECM) I/O SignalEngine Condition DataData Link ConnectorGeneral Scan ToolSubaru Select MonitorRead Diagnostic Trouble Code (DTC)Inspection ModeDrive CycleClear Memory ModeCompulsory Valve Operation Check ModeSystem Operation Check ModeMalfunction Indicator LightPROCEDUREACTIVATION OF MALFUNCTION INDICATOR LIGHTMALFUNCTION INDICATOR LIGHT DOES NOT COME ONMALFUNCTION INDICATOR LIGHT DOES NOT GO OFF
Diagnostics for Engine Starting FailurePROCEDURESTARTER MOTOR CIRCUITCHECK POWER SUPPLY AND GROUND LINE OF ENGINE CONTROL MODULE (ECM)IGNITION CONTROL SYSTEMFUEL PUMP CIRCUITFUEL INJECTOR CIRCUIT
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 P0101 MASS OR VOLUME AIR FLOW CIRCUIT RANGE/PERFORMANCEDTC P0102 MASS OR VOLUME AIR FLOW CIRCUIT LOW INPUTDTC P0103 MASS OR VOLUME AIR FLOW CIRCUIT HIGH INPUTDTC P0107 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT LOW INPUTDTC P0108 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT HIGH INPUTDTC P0112 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT LOWDTC P0113 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT HIGHDTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOWDTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGHDTC P0122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT LOWDTC P0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT HIGHDTC P0125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROLDTC 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 LOWDTC P0223 THROTTLE/PEDAL POSITION SENSOR/SWITCH “B” CIRCUIT HIGHDTC P0301 CYLINDER 1 MISFIRE DETECTEDDTC P0302 CYLINDER 2 MISFIRE DETECTEDDTC P0303 CYLINDER 3 MISFIRE DETECTEDDTC P0304 CYLINDER 4 MISFIRE DETECTEDDTC 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” CIRCUITDTC 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 FLOWDTC P0410 SECONDARY AIR INJECTION SYSTEMDTC P0413 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE “A” CIRCUIT OPENDTC P0414 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE “A” CIRCUIT SHORTEDDTC P0418 SECONDARY AIR INJECTION SYSTEM CONTROL “A” CIRCUITDTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1)DTC P0458 EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT LOWDTC P0459 EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT HIGHDTC P0462 FUEL LEVEL SENSOR “A” CIRCUIT LOWDTC P0463 FUEL LEVEL SENSOR “A” CIRCUIT HIGHDTC P0502 VEHICLE SPEED SENSOR “A” CIRCUIT LOW INPUTDTC P0503 VEHICLE SPEED SENSOR “A” INTERMITTENT/ERRATIC/HIGHDTC P0512 STARTER REQUEST CIRCUITDTC P0600 SERIAL COMMUNICATION LINKDTC P0604 INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERRORDTC P0605 INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERRORDTC P0607 CONTROL MODULE PERFORMANCEDTC P0638 THROTTLE ACTUATOR CONTROL RANGE/PERFORMANCE (BANK 1)DTC P0691 FAN 1 CONTROL CIRCUIT LOWDTC P0692 FAN 1 CONTROL CIRCUIT HIGHDTC 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 FAILUREDTC P1410 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPENDTC P1418 SECONDARY AIR INJECTION SYSTEM CONTROL “A” CIRCUIT SHORTEDDTC 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 INPUTDTC P1521 BRAKE SWITCH CIRCUIT RANGE/PERFORMANCE PROBLEM (HIGH INPUT)DTC P1560 BACK-UP VOLTAGE CIRCUIT MALFUNCTIONDTC P2088 OCV SOLENOID VALVE SIGNAL A CIRCUIT OPEN (BANK 1)DTC P2089 OCV SOLENOID VALVE SIGNAL A CIRCUIT SHORT (BANK 1)DTC P2092 OCV SOLENOID VALVE SIGNAL A CIRCUIT OPEN (BANK 2)DTC P2093 INTAKE CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT HIGH (BANK 2)DTC P2100 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT/OPENDTC P2101 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT RANGE/PERFORMANCEDTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOWDTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGHDTC P2109 THROTTLE/PEDAL POSITION SENSOR “A” MINIMUM STOP PERFORMANCEDTC P2111 THROTTLE ACTUATOR CONTROL SYSTEM - STUCK OPENDTC P2122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT LOW INPUTDTC P2123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT HIGH INPUTDTC P2127 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT LOW INPUTDTC P2128 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT HIGH INPUTDTC P2135 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A”/“B” VOLTAGE CORRELATIONDTC P2138 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D”/“E” VOLTAGE CORRELATIONDTC P2228 BAROMETRIC PRESSURE CIRCUIT LOWDTC P2229 BAROMETRIC PRESSURE CIRCUIT HIGHDTC P2432 SECONDARY AIR INJECTION SYSTEM AIR FLOW /PRESSURE SENSOR CIRCUIT LOWDTC P2433 SECONDARY AIR INJECTION SYSTEM AIR FLOW /PRESSURE SENSOR CIRCUIT HIGHDTC P2440 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPEN (BANK 1)DTC P2441 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK CLOSED (BANK 1)DTC P2444 SECONDARY AIR INJECTION SYSTEM PUMP STUCK ONDTC P2503 CHARGING SYSTEM VOLTAGE LOWDTC P2504 CHARGING SYSTEM VOLTAGE HIGH
General Diagnostic TableENGINE (DIAGNOSTICS)(H4DOTC)Basic Diagnostic ProcedureCheck List for InterviewGeneral DescriptionElectrical Component LocationEngine Control Module (ECM) I/O SignalEngine Condition DataData Link ConnectorGeneral Scan ToolSubaru Select MonitorRead Diagnostic Trouble Code (DTC)Inspection ModeDrive CycleClear Memory ModeCompulsory Valve Operation Check ModeSystem Operation Check ModeMalfunction Indicator LightPROCEDUREACTIVATION OF MALFUNCTION INDICATOR LIGHTMALFUNCTION INDICATOR LIGHT DOES NOT COME ONMALFUNCTION INDICATOR LIGHT DOES NOT GO OFF
Diagnostics for Engine Starting FailurePROCEDURESTARTER MOTOR CIRCUITCHECK POWER SUPPLY AND GROUND LINE OF ENGINE CONTROL MODULE (ECM)IGNITION CONTROL SYSTEMFUEL PUMP CIRCUITFUEL INJECTOR CIRCUIT
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 INPUTDTC P0103 MASS OR VOLUME AIR FLOW CIRCUIT HIGH INPUTDTC P0107 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT LOW INPUTDTC P0108 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT HIGH INPUTDTC P0112 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT LOWDTC P0113 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT HIGHDTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOWDTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGHDTC P0122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT LOWDTC P0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT HIGHDTC P0125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROLDTC 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 (BANK1 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 LOWDTC P0223 THROTTLE/PEDAL POSITION SENSOR/SWITCH “B” CIRCUIT HIGHDTC P0230 FUEL PUMP PRIMARY CIRCUITDTC P0244 TURBO/SUPER CHARGER WASTEGATE SOLENOID “A” RANGE/PERFORMANCEDTC P0245 TURBO/SUPER CHARGER WASTEGATE SOLENOID “A” LOWDTC P0246 TURBO/SUPER CHARGER WASTEGATE SOLENOID “A” HIGHDTC P0301 CYLINDER 1 MISFIRE DETECTEDDTC P0302 CYLINDER 2 MISFIRE DETECTEDDTC P0303 CYLINDER 3 MISFIRE DETECTEDDTC P0304 CYLINDER 4 MISFIRE DETECTEDDTC 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” CIRCUITDTC 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 SYSTEMDTC P0413 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE “A” CIRCUIT OPENDTC P0414 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE “A” CIRCUIT SHORTEDDTC P0418 SECONDARY AIR INJECTION SYSTEM CONTROL “A” CIRCUITDTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1)DTC P0458 EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT LOWDTC P0459 EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT HIGHDTC P0462 FUEL LEVEL SENSOR “A” CIRCUIT LOWDTC P0463 FUEL LEVEL SENSOR “A” CIRCUIT HIGHDTC P0502 VEHICLE SPEED SENSOR “A” CIRCUIT LOW INPUTDTC P0503 VEHICLE SPEED SENSOR “A” INTERMITTENT/ERRATIC/HIGHDTC P0512 STARTER REQUEST CIRCUITDTC P0519 IDLE AIR CONTROL SYSTEM PERFORMANCEDTC P0600 SERIAL COMMUNICATION LINKDTC P0604 INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERRORDTC P0605 INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERRORDTC P0607 CONTROL MODULE PERFORMANCEDTC P0638 THROTTLE ACTUATOR CONTROL RANGE/PERFORMANCE (BANK 1)DTC P0691 FAN 1 CONTROL CIRCUIT LOWDTC P0692 FAN 1 CONTROL CIRCUIT HIGHDTC 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 FAILUREDTC P1410 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPENDTC P1418 SECONDARY AIR INJECTION SYSTEM CONTROL “A” CIRCUIT SHORTEDDTC P1518 STARTER SWITCH CIRCUIT LOW INPUTDTC P1560 BACK-UP VOLTAGE CIRCUIT MALFUNCTIONDTC 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 OCV SOLENOID VALVE SIGNAL A CIRCUIT OPEN (BANK 1)DTC P2089 OCV SOLENOID VALVE SIGNAL A CIRCUIT SHORT (BANK 1)DTC P2092 OCV SOLENOID VALVE SIGNAL A CIRCUIT OPEN (BANK 2)DTC P2093 INTAKE CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT HIGH (BANK 2)DTC P2101 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT RANGE/PERFORMANCEDTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOWDTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGHDTC P2109 THROTTLE/PEDAL POSITION SENSOR “A” MINIMUM STOP PERFORMANCEDTC P2122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT LOW INPUTDTC P2123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT HIGH INPUTDTC P2127 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT LOW INPUTDTC P2128 THROTTLE/PEDAL POSITION SENSOR/SWITCH “E” CIRCUIT HIGH INPUTDTC P2135 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A”/“B” VOLTAGE CORRELATIONDTC P2138 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D”/“E” VOLTAGE CORRELATIONDTC P2228 BAROMETRIC PRESSURE CIRCUIT LOWDTC P2229 BAROMETRIC PRESSURE CIRCUIT HIGHDTC P2432 SECONDARY AIR INJECTION SYSTEM AIR FLOW /PRESSURE SENSOR CIRCUIT LOWDTC P2433 SECONDARY AIR INJECTION SYSTEM AIR FLOW /PRESSURE SENSOR CIRCUIT HIGHDTC P2440 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPEN (BANK 1)DTC P2441 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK CLOSED (BANK 1)DTC P2444 SECONDARY AIR INJECTION SYSTEM PUMP STUCK ONDTC P2503 CHARGING SYSTEM VOLTAGE LOWDTC P2504 CHARGING SYSTEM VOLTAGE HIGH
General Diagnostic TableAUTOMATIC TRANSMISSION (DIAGNOSTICS)(4AT)(D)Basic Diagnostic ProcedureCheck List for InterviewGeneral DescriptionElectrical Component LocationTransmission Control Module (TCM) I/O SignalSubaru Select MonitorRead Diagnostic Trouble Code (DTC)Inspection ModeClear Memory ModePower Indicator Light DisplayDiagnostic Procedure for Subaru Select Monitor CommunicationList 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 INPUTDTC P0713 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT HIGH INPUTDTC P0715 INPUT/TURBINE SPEED SENSOR CIRCUITDTC P0719 BRAKE SWITCH CIRCUIT LOWDTC P0720 OUTPUT SPEED SENSOR CIRCUITDTC P0724 BRAKE SWITCH CIRCUIT HIGHDTC P0725 ENGINE SPEED INPUT CIRCUITDTC P0731 GEAR 1 INCORRECT RATIODTC P0732 GEAR 2 INCORRECT RATIODTC P0733 GEAR 3 INCORRECT RATIODTC P0734 GEAR 4 INCORRECT RATIODTC P0736 REVERSE INCORRECT RATIODTC P0741 TORQUE CONVERTER CLUTCH CIRCUIT PERFORMANCE OR STUCK OFFDTC P0743 TORQUE CONVERTER CLUTCH CIRCUIT ELECTRICALDTC P0748 PRESSURE CONTROL SOLENOID “A” ELECTRICALDTC P0753 SHIFT SOLENOID “A” ELECTRICALDTC P0758 SHIFT SOLENOID “B” ELECTRICALDTC P0763 SHIFT SOLENOID “C” ELECTRICALDTC P0768 SHIFT SOLENOID “D” ELECTRICALDTC P0801 REVERSE INHIBIT CONTROL CIRCUITDTC P1706 AT VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION (REAR WHEEL)DTC P1707 AT AWD SOLENOID VALVE CIRCUIT MALFUNCTIONDTC P1718 CAN COMMUNICATION CIRCUITDTC P1817 SPORT MODE SWITCH CIRCUIT
Diagnostic Procedure without Diagnostic Trouble Code (DTC)CHECK FWD SWITCHCHECK CRUISE CONTROL SWITCHCHECK POWER MODE SWITCHCHECK HOLD SWITCHCHECK SPORT SHIFT SWITCHCHECK SPORT SHIFT INDICATOR LIGHTCHECK BUZZER
General Diagnostic TableABS (DIAGNOSTICS)Basic Diagnostic ProcedureCheck List for InterviewGeneral DescriptionElectrical Component LocationControl Module I/O SignalSubaru Select MonitorRead Diagnostic Trouble Code (DTC)Inspection ModeClear Memory ModeABS Warning Light / Brake Warning Light Illumination PatternINSPECTIONABS WARNING LIGHT DOES NOT COME ONABS WARNING LIGHT DOES NOT GO OFFBRAKE WARNING LIGHT DOES NOT GO OFF
List of Diagnostic Trouble Code (DTC)Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC 21 ABS WHEEL SPEED SENSOR FR MALFUNCTION (BROKEN WIRE, INPUT VOLTAGE TOO HIGH)DTC 22 ABS WHEEL SPEED SENSOR FR MALFUNCTION (ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL)DTC 23 ABS WHEEL SPEED SENSOR FL MALFUNCTION (BROKEN WIRE, INPUT VOLTAGE TOO HIGH)DTC 24 ABS WHEEL SPEED SENSOR FL MALFUNCTION (ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL)DTC 25 ABS WHEEL SPEED SENSOR RR MALFUNCTION (BROKEN WIRE, INPUT VOLTAGE TOO HIGH)DTC 26 ABS WHEEL SPEED SENSOR RR MALFUNCTION (ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL)DTC 27 ABS WHEEL SPEED SENSOR RL MALFUNCTION (BROKEN WIRE, INPUT VOLTAGE TOO HIGH)DTC 28 ABS WHEEL SPEED SENSOR RL MALFUNCTION (ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL)DTC 29 ABNORMAL ABS WHEEL SPEED SENSOR SIGNAL ON ANY ONE OF FOUR SENSORDTC 31 FRONT INLET SOLENOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT (ABSCM&H/U)DTC 32 FRONT OUTLET SOLENOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT (ABSCM&H/U)DTC 33 FRONT INLET SOLENOID VALVE LH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT (ABSCM&H/U)DTC 34 FRONT OUTLET SOLENOID VALVE LH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT (ABSCM&H/U)DTC 35 REAR INLET SOLENOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT (ABSCM&H/U)DTC 36 REAR OUTLET SOLENOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT (ABSCM&H/U)DTC 37 REAR INLET SOLENOID VALVE LH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT (ABSCM&H/U)DTC 38 REAR OUTLET SOLENOID VALVE LH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT (ABSCM&H/U)DTC 41 ABS CONTROL MODULE MALFUNCTIONDTC 42 POWER VOLTAGE MALFUNCTIONDTC 47 IMPROPER CAN COMMUNICATIONDTC 51 VALVE RELAY MALFUNCTIONDTC 52 MOTER/MOTER RELAY MALFUNCTIONDTC 54 STOP LIGHT SWITCH SIGNAL CIRCUIT MALFUNCTIONDTC 56 G SENSOR OUTPUT VOLTAGE OR OUTPUT SIGNAL MALFUNCTION
General Diagnostic TableVEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)Basic Diagnostic ProcedureCheck List for InterviewGeneral DescriptionElectrical Component LocationControl Module I/O SignalVDCCM Connector CoverSubaru Select MonitorRead Diagnostic Trouble Code (DTC)Inspection ModeClear Memory ModeWarning Light Illumination PatternList of Diagnostic Trouble Code (DTC)Diagnostic Procedure with Diagnostic Trouble Code (DTC)COMMUNICATION FOR INITIALIZING IS IMPOSSIBLE (SUBARU SELECT MONITOR COMMUNICATION MALFUNCTION)ABS WARNING LIGHT, VDC WARNING LIGHT/VDC OFF INDICATOR LIGHT,BRAKE WARNING LIGHT (EBD WARNING LIGHT) OR VDC INDICATOR LIGHT DOES NOT COME ONABS WARNING LIGHT, VDC WARNING LIGHT/VDC OFF INDICATOR LIGHT, BRAKE WARNING LIGHT (EBD WARNING LIGHT) DOES NOT GO OFFVDC INDICATOR LIGHT DOES NOT GO OFFDTC 21 FRONT RIGHT ABS SENSOR CIRCUIT OPEN OR SHORTDTC 23 FRONT LEFT ABS SENSOR CIRCUIT OPEN OR SHORTDTC 25 REAR RIGHT ABS SENSOR CIRCUIT OPEN OR SHORTDTC 27 REAR LEFT ABS SENSOR CIRCUIT OPEN OR SHORTDTC 22 FRONT RIGHT ABS SENSOR SIGNALDTC 24 FRONT LEFT ABS SENSOR SIGNALDTC 26 REAR RIGHT ABS SENSOR SIGNALDTC 28 REAR LEFT ABS SENSOR SIGNALDTC 29 ANY OF WHEEL SENSORS SIGNALDTC 31 FRONT SOLENOID RIGHT INLET VALVE MALFUNCTIONDTC 33 FRONT LEFT INLET SOLENOID VALVE MALFUNCTIONDTC 35 REAR RIGHT INLET SOLENOID VALVE MALFUNCTIONDTC 37 REAR LEFT INLET SOLENOID VALVE MALFUNCTIONDTC 61 SECONDARY CUT SOLENOID VALVE MALFUNCTIONDTC 62 PRIMARY CUT SOLENOID VALVE MALFUNCTIONDTC 32 FRONT RIGHT OUTLET SOLENOID VALVE MALFUNCTIONDTC 34 FRONT LEFT OUTLET SOLENOID VALVE MALFUNCTIONDTC 36 REAR RIGHT OUTLET SOLENOID VALVE MALFUNCTIONDTC 38 REAR LEFT OUTLET SOLENOID VALVE MALFUNCTIONDTC 63 SECONDARY SUCTION SOLENOID VALVE MALFUNCTIONDTC 64 PRIMARY SUCTION SOLENOID VALVE MALFUNCTIONDTC 41 ECMDTC 42 POWER VOLTAGE MALFUNCTIONDTC 44 TCM COMMUNICATION CIRCUITDTC 45 INCORRECT VDC CONTROL MODULE SPECIFICATIONSDTC 45 TCM MALFUNCTIONDTC 46 ABNORMAL VOLTAGE OF 5V POWER SUPPLYDTC 47 CAN COMMUNICATIONDTC 51 VALVE RELAY OFF MALFUNCTION/ VALVE RELAY TEST MALFUNCTIONDTC 52 MOTOR AND MOTOR RELAY ON FAILUREDTC 52 MOTOR/MOTOR RELAY OFF MALFUNCTIONDTC 52 MOTOR/MOTOR RELAY ON MALFUNCTIONDTC 52 MOTOR MALFUNCTIONDTC 57 ECM COMMUNICATION CIRCUITDTC 71 STEERING ANGLE SENSOR OFFSET IS TOO BIGDTC 71 CHANGE RANGE OF STEERING ANGLE SENSOR IS TOO BIGDTC 71 STEERING ANGLE SENSOR MALFUNCTIONDTC 71 STEERING ANGLE SENSOR COMMUNICATIONDTC 72 ABNORMAL YAW RATE SENSOR OUTPUTDTC 72 VOLTAGE INPUTTED TO YAW RATE SENSOR EXCEEDS SPECIFICATIONDTC 72 ABNORMAL YAW RATE SENSOR REFERENCE VOLTAGEDTC 72 CHANGE RANGE OF YAW RATE SENSOR SIGNAL IS TOO BIGDTC 73 LATERAL G SENSOR OFFSET IS TOO BIGDTC 73 ABNORMAL LATERAL G SENSOR OUTPUTDTC 73 CHANGE RANGE OF LATERAL G SENSOR SIGNAL IS TOO BIGDTC 73 EXCESSIVE LATERAL G SENSOR SIGNALDTC 73 VOLTAGE INPUTTED TO LATERAL G SENSOR EXCEEDS SPECIFICATIONDTC 74 PRIMARY PRESSURE SENSOR POWER/OUTPUTDTC 74 SECONDARY PRESSURE SENSOR POWER/OUTPUTDTC 74 PRIMARY PRESSURE SENSOR OFFSET IS TOO BIGDTC 74 SECONDARY PRESSURE SENSOR OFFSET IS TOO BIGDTC 74 DIFFERENTIAL PRESSURE OF PRESSURE SENSOR IS TOO BIG
General Diagnostic TableHVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)Basic Diagnostic ProcedureGeneral DescriptionElectrical Component LocationAuto A/C Control Module I/O SignalDiagnostic Chart for Self-diagnosisDiagnostics for A/C System MalfunctionA/C OR SELF-DIAGNOSIS SYSTEMS DO NOT OPERATEBLOWER FAN DOES NOT ROTATECOMPARTMENT TEMPERATURE DOES NOT CHANGE, OR A/C SYSTEM DOES NOT RESPOND PROMPTLY
Diagnostic Procedure for ActuatorsDiagnostic Procedure for SensorsGeneral Diagnostic TableAIRBAG SYSTEM (DIAGNOSTICS)Basic Diagnostic ProcedureCheck List for InterviewGeneral DescriptionElectrical Component LocationAirbag Control Module I/O SignalAirbag ConnectorSubaru Select MonitorRead Diagnostic Trouble Code (DTC)Inspection ModeClear Memory ModeAirbag Warning Light Illumination PatternAirbag Warning Light FailureList of Diagnostic Trouble Code (DTC)Diagnostic Chart with Trouble CodeCRUISE CONTROL SYSTEM (DIAGNOSTICS)Basic Diagnostic ProcedureGeneral DescriptionElectrical Component LocationEngine Control Module (ECM) I/O SignalSubaru Select MonitorDiagnostics with PhenomenonList of Diagnostic Trouble Code (DTC)Diagnostic Procedure with Diagnostic Trouble Code (DTC)IMMOBILIZER (DIAGNOSTICS)Basic Diagnostic ProcedureGeneral DescriptionElectrical Component LocationImmobilizer Control Module I/O SignalSubaru Select MonitorRead Diagnostic Trouble Code (DTC)Clear Memory ModeDiagnostics Chart for Immobilizer Indicator LightList of Diagnostic Trouble Code (DTC)Diagnostic Procedure with Diagnostic Trouble Code (DTC)