Wait Detection Switch

Wait Detection Switch





CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE





TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE

CAUTION: When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.

DIAGNOSTIC PROCEDURE
1. CHECK WAIT DETECTION SWITCH SIGNAL

With CONSULT-II
1. Start engine.
2. Select "DATA MONITOR" mode for "ALL MODE AWD/4WD" with CONSULT-II.









3. Read out the value of "WAIT DETCT SW".

Without CONSULT-II
1. Start engine.









2. Check voltage between transfer control unit harness connector terminal and ground.

OK or NG
OK >> GO TO 5.
NG >> GO TO 2.

2. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND WAIT DETECTION SWITCH
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and the wait detection switch harness connector.





3. Check continuity between transfer control unit harness connector E143 terminal 43 (G/Y) and wait detection switch harness connector F59 terminal 10 (G/Y).
Continuity should exist.
Also check harness for short to ground and short to power.

OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

3. CHECK GROUND CIRCUIT
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Disconnect wait detection switch harness connector.





3. Check continuity between wait detection switch harness connector F59 terminal 11 (B) and ground.
Continuity should exist.
Also check harness for short to ground and short to power.

OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.

4. CHECK WAIT DETECTION SWITCH
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Disconnect wait detection switch harness connector.
3. Remove wait detection switch.









4. Push and release wait detection switch and check continuity between wait detection switch terminals 10 and 11.

OK or NG
OK >> GO TO 5.
NG >> Replace wait detection switch. .

5. CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal.

OK or NG
OK >> GO TOO.
NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.

6. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.

OK or NG
OK >> Inspection End.
NG >> Replace transfer control unit.

COMPONENT INSPECTION
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Disconnect wait detection switch harness connector.
3. Remove wait detection switch. .









4. Push and release wait detection switch and check continuity between wait detection switch terminals 10 and 11.
5. If NG, replace the wait detection switch.