AUTOMATIC TRANSMISSION (DIAGNOSTICS)(4AT)(D) > Diagnostic Procedure without Diagnostic Trouble Code (DTC)

CHECK SPORT SHIFT INDICATOR LIGHT

DIAGNOSIS:

Output signal circuit of SPORT shift indicator light is open or shorted.

TROUBLE SYMPTOM:

• Sport shift indicator light does not display or remains displayed.

• Sport shift indicator light display does not change.

WIRING DIAGRAM:

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1.CHECK SPORT SHIFT INDICATOR LIGHT.

Does the sport shift indicator light operate properly when driving at sport shift mode?

Go to the procedure “CHECK BUZZER”.

2.CHECK COMBINATION METER.

Does the lights except for sport shift indicator operate properly?

Check the combination meter.

3.CHECK HARNESS CONNECTOR BETWEEN TCM AND COMBINATION METER.

1) Turn the ignition switch to OFF.

2) Disconnect the connectors from TCM and combination meter.

3) Measure the resistance of harness between TCM and combination meter.

Connector & terminal

(B55) No. 22 — (i10) No. 14:

Is the resistance less than 1 Ω?

Repair the open circuit of harness between TCM and combination meter connector, and the poor contact of the connector.

4.CHECK HARNESS CONNECTOR BETWEEN TCM AND COMBINATION METER.

Measure the resistance between TCM and chassis ground.

Connector & terminal

(B55) No. 22 — Chassis ground:

Is the resistance 1 MΩ or more?

Repair short circuit of harness between TCM and combination meter connector.

5.CHECK OUTPUT SIGNAL OF TCM.

1) Connect the connector to TCM and combination meter.

2) Turn the ignition switch to ON (engine OFF).

3) Measure the voltage between TCM and chassis ground.

Connector & terminal

(B55) No. 22 (+) — Chassis ground (−):

Is the voltage 4 V or more?

Replace the combination meter.

6.CHECK POOR CONTACT.

Is there poor contact in the sport shift indicator light circuit?

Repair the poor contact.

Replace the TCM.