Overdrive Control Switch

OVERDRIVE CONTROL SWITCH

Component Function Check


1. CHECK O/D OFF INDICATOR LAMP FUNCTION

Check O/D OFF indicator lamp turns ON for approx. 2 seconds when ignition switch turns ON.
Is the inspection results normal?
YES- GO TO 2.
NO- Go to "Diagnosis Procedure" OD Off Indicator Lamp.

2. CHECK OVERDRIVE CONTROL SWITCH FUNCTION

1.Shift the selector lever to "D" position.
2.Check that O/D OFF indicator lamp turns ON/OFF when overdrive control switch is operated.
Is the inspection results normal?
YES- INSPECTION END
NO- Go to "Diagnosis Procedure" .


Diagnosis Procedure


1. CHECK O/D OFF SWITCH CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect CVT shift selector connector.
3.Turn ignition switch ON.
4.Check voltage between CVT shift selector harness connector terminals.





Is the inspection result normal?
YES- GO TO 2.
NO- GO TO 3.

2. CHECK O/D OFF SWITCH

Check overdrive control switch. Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace malfunctioning parts.

3. CHECK GROUND CIRCUIT

Check continuity between CVT shift selector harness connector terminal and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace malfunctioning parts.

4. CHECK CIRCUIT BETWEEN CVT SHIFT SELECTOR AND COMBINATION METER (PART 1)

1.Turn ignition switch OFF.
2.Disconnect combination meter connector.
3.Check continuity between CVT shift selector harness connector terminal and combination meter harness connector terminal.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace malfunctioning parts.

5. CHECK CIRCUIT BETWEEN CVT SHIFT SELECTOR AND COMBINATION METER (PART 2)

Check continuity between CVT shift selector harness connector terminal and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace malfunctioning parts.

6. CHECK COMBINATION METER INPUT SIGNAL

1.Connect all of disconnected connectors.
2.Turn ignition switch ON.
3.Select "Data Monitor" in "METER/M&A".
4.Select "O/D OFF SW".
5.Check that "O/D OFF SW" turns ON/OFF when overdrive control switch is operated. Refer to "Reference Value" Reference Value.
Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Replace combination meter. Refer to "Removal and Installation" Service and Repair.


Component Inspection


1. CHECK OVERDRIVE CONTROL SWITCH

Check continuity between wires of selector lever knob.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace selector lever knob. Refer to "Removal and Installation" Removal And Installation.