Actuator Motor
Actuator Motor
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE
Part 1:
Part 2:
CAUTION: When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
DIAGNOSTIC PROCEDURE
1. CHECK ACTUATOR MOTOR 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 "SHIFT ACT1", "SHIFT AC MONT", "SHIFT ACT2", "SHIFT AC MON2".
Without CONSULT-II
1. Start engine.
2. Depress brake pedal and stop vehicle.
3. Set A/T selector lever to "N" position.
4. Check voltage between transfer control unit harness connector terminal and ground.
OK or NG
OK >> GO TO 9.
NG >> GO TO 2.
2. CHECK ACTUATOR MOTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector.
3. Check voltage between transfer control unit harness connector M153 terminal 27 and ground.
4. Turn ignition switch "ON".
5. Check voltage between transfer control unit harness connector M153 terminal 27 and ground.
OK or NG
OK >> GO TO 3.
NG >>
1. Check harness for short or open between transfer control unit harness connector M153 terminal 27 and transfer shut off relay 2 harness connector E157 terminal 5 and 10A fuse (No. 57, located in the fuse and relay box). If any items are damaged, repair or replace damaged parts.
2. Perform trouble diagnosis for power supply circuit. Refer to TF-50, "Power Supply Circuit For Transfer Control Unit". Power Supply Circuit
3. CHECK TRANSFER RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Remove transfer relay 1 and transfer relay 2. Refer to "Location of Electrical Parts".
3. Check voltage between transfer control unit harness connector terminal and ground.
4. Turn ignition switch "ON". (Do not start engine.)
5. Check voltage between transfer control unit harness connector terminal and ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following. If any items are damaged, repair or replace damaged parts.
^ Harness for short or open between transfer control unit harness connector terminal 27 and transfer relay 1 harness connector E46 terminal 2.
^ Harness for short or open between transfer control unit harness connector terminal 27 and transfer relay 2 harness connector terminal E47 terminal 2.
4. CHECK TRANSFER RELAY
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Remove transfer relay 1 and transfer relay 2.
3. Apply 12V direct current between transfer relay terminals 1 and 2.
4. Check continuity between relay terminals 3 and 4, 3 and 5.
OK or NG
OK >> GO TO 5.
NG >> Replace the transfer relay.
5. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT, TRANSFER RELAY 1 AND TRANSFER RELAY 2 (1)
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector.
3. Remove transfer relay 1 and transfer relay 2
4. Check continuity between the following terminals.
^ Transfer control unit harness connector M153 terminal 42 and transfer relay 1 harness connector E46 terminal 1.
^ Transfer control unit harness connector M153 terminal 50 and transfer relay 2 harness connector E47 terminal 1. Continuity should exist. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT, TRANSFER RELAY 1 AND TRANSFER RELAY 2 (2)
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector.
3. Remove transfer relay 1 and transfer relay 2.
4. Check continuity between the following terminals.
^ Transfer control unit harness connector M153 terminal 28 and transfer relay 1 harness connector E46 terminal 5.
^ Transfer control unit harness connector M153 terminal 28 and transfer relay 2 harness connector E47 terminal 5.
^ Transfer control unit harness connector M153 terminal 31 and transfer relay 1 harness connector E46 terminal 4.
^ Transfer control unit harness connector M153 terminal 31 and transfer relay 2 harness connector E47 terminal 4. Continuity should exist. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. CHECK ACTUATOR MOTOR OPERATION CIRCUIT
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and the transfer control device (actuator motor) harness connector.
3. Check continuity between the following terminals.
^ Transfer control unit harness connector M153 terminal 47 and transfer control device (actuator motor) harness connector F58 terminal 23.
^ Transfer control unit harness connector M153 terminal 48 and transfer control device (actuator motor) harness connector F58 terminal 24.
^ Transfer control device (actuator motor) harness connector F58 terminal 24 and transfer relay 1 harness connector E46 terminal 3.
^ Transfer control device (actuator motor) harness connector F58 terminal 23 and transfer relay 2 harness connector E47 terminal 3.
Continuity should exist.
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8. CHECK ACTUATOR MOTOR
1. Remove transfer control device.
2. Check operation by applying battery voltage to transfer control device (actuator motor) terminals 23 and 24.
CAUTION: Be careful not to overheat the harness.
Does actuator motor rotate?
YES >> GO TO 9.
NO >> Replace transfer control device (actuator motor).
9. CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to "Transfer Control Unit Input/Output Signal Reference Values".
OK or NG
OK >> GO TO 10.
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.
10. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >> Inspection End.
NG >> Replace transfer control unit. Refer to "TRANSFER CONTROL UNIT".
COMPONENT INSPECTION
Actuator Motor
1. Remove transfer control device
2. Check operation by applying battery voltage to transfer control device (actuator motor) terminals 23 and 24.
CAUTION: Be careful not to overheat the harness.
3. If NG, replace transfer control device (actuator motor).
Transfer Relay
1. Turn ignition. switch "OFF". (Stay for at least 5 seconds.)
2. Remove transfer relay 1 and transfer relay 2. Refer to "Location of Electrical Parts".
Apply 12 V direct current between transfer relay terminals 1 and
4. Check continuity between relay terminals 3 and 4, and 3 and 5.
5. If NG, replace transfer relay. Refer to "Location of Electrical Parts".