Transfer Motor

Transfer Motor

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE





Data are reference value.

TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE





Data are reference value and are measured between each terminal and ground.

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

DIAGNOSTIC PROCEDURE
1. CHECK TRANSFER MOTOR RELAY 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 "MOTOR RELAY" and "MOTOR RELAY MON".

Without CONSULT-II
1. Start engine.









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

OK or NG
OK >> GO TO 7.
NG >> GO TO 2.

2. CHECK TRANSFER MOTOR RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Connect transfer control unit harness connector.









3. Disconnect transfer motor relay.
4. Check voltage between transfer motor relay harness connector terminals and ground.
5. Turn ignition switch "ON". (Do not start engine.)









6. Check voltage between transfer motor relay harness connector terminals and ground.

OK or NG
OK >> GO TO 3.
NG >> Check the following. If any items are damaged, repair or replace damaged parts.
^ 20A fuse No. 58 located in the fuse and relay box.
^ 10A fuse No. 26 located in the fuse and fusible link box.
^ Harness for short or open between battery and transfer motor relay harness connector E154 terminal 5 (G/R).
^ Harness for short or open between transfer shut off relay harness connector E69 terminal 5 (Y/ R) and transfer motor relay harness connector E153 terminal 2 (Y/R).
^ Battery and ignition switch.

3. CHECK TRANSFER MOTOR RELAY
1. Turn ignition switch "OFF".
2. Remove transfer motor relay.





3. Apply 12V direct current between transfer motor relay terminals 1 and 2.





4. Check continuity between relay terminals 3 and 5.

OK or NG
OK >> GO TO 4.
NG >> Replace the transfer motor relay.

4. CHECK TRANSFER MOTOR CONTROL CIRCUIT
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Remove transfer motor relay. .
3. Disconnect transfer control unit harness connector and transfer motor.
4. Check continuity between the following terminals.





- Transfer control unit harness connector E142 terminal 14 (LO) and transfer motor relay harness connector E153 terminal 1 (LO).





- Transfer control unit harness connector E142 terminal 41 (R) and transfer motor relay harness connector E154 terminal 3 (R).
- Transfer control unit harness connector E142 terminal 41 (R) and transfer motor harness connector F57 terminal 14 (R).
Continuity should exist.
Also check harness for short to ground and short to power.

OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

5. CHECK TRANSFER MOTOR GROUND CIRCUIT
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Disconnect transfer motor harness connector.





3. Check continuity between transfer motor harness connector F57 terminal 15 (B) and ground.
Continuity should exist.
Also check harness for short to ground and short to power.

OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.

6. CHECK TRANSFER MOTOR
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Disconnect transfer motor harness connector.





3. Apply 12V direct current between transfer motor terminals 14 and 15.

Does transfer motor operate?
YES >> GO TO 7.
NO >> Replace transfer motor.

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

OK or NG
OK >> GO TO 8.
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.

8. 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

Transfer Motor Relay
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Remove transfer motor relay.









3. Apply 12V direct current between transfer motor relay terminals 1 and 2.
4. Check continuity between relay terminals 3 and 5.
5. If NO, replace transfer motor relay.

Transfer Motor
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Remove transfer motor.





3. Apply 12V direct current between transfer motor terminals 14 and 15.
4. If transfer motor does not operate, replace transfer motor.