P189C

P189C MOTOR B

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, power switch OFF and wait for at least
10 seconds, then perform the next test.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT
1.Power switch ON and wait for 2 seconds or more.
2.Check DTC.
Is "P189C" detected?
YES- Go to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK HARNESS BETWEEN ELECTRIC SHIFT CONTROL MODULE AND MOTOR COIL B

1.Power switch OFF.
2.Disconnect the electric shift control module connector.
3.Disconnect the parking actuator connector.
4.Check the continuity electric shift control module vehicle side harness connector terminals and parking actuator vehicle side harness connector terminals.





5.Check the continuity electric shift control module vehicle side harness connector terminals and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace damaged parts.

2. CHECK GROUND CIRCUIT

Check the continuity electric shift control module vehicle side harness connector terminals and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace damaged parts.

3. CHECK PARKING ACTUATOR RELAY B

Check the parking actuator relay B. Refer to "Component Inspection (Parking Actuator Relay B)" .
Is the inspection result normal?
YES- GO TO 4.
NO- Replace the parking actuator relay B. Refer to "Component Parts Location" .

4. CHECK HARNESS BETWEEN PARKING ACTUATOR RELAY B AND 12V BATTERY

Check the voltage parking actuator relay B vehicle side harness connector terminal and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- GO TO 5.

5. DETECT MALFUNCTIONING ITEM

Check the following.
- Harness for short or open between parking actuator relay B and 12V battery
- 12V battery
- 20A fuse (# 77)
Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Repair or replace damaged parts.

6. CHECK HARNESS BETWEEN PARKING ACTUATOR AND PARKING ACTUATOR RELAY B

Check the continuity parking actuator vehicle side harness connector terminal and parking actuator relay A
vehicle side harness connector terminal.





Is the inspection result normal?
YES- GO TO 7.
NO- Repair or replace damaged parts.

7. CHECK HARNESS BETWEEN ELECTRIC SHIFT CONTROL MODULE AND PARKING ACTUATOR RE-

LAY B
1.Check the continuity electric shift control module vehicle side harness connector terminal and parking actuator relay B vehicle side harness connector terminal.





2.Check the continuity electric shift control module vehicle side harness connector terminal and ground.





Is the inspection result normal?
YES- GO TO 8.
NO- Repair or replace damaged parts.

8. CHECK MOTOR COIL B

Check the motor coil B (parking actuator). Refer to "Component Inspection (Motor Coil B)" .
Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident
NO- Replace the reduction gear due to malfunction in the motor coil B (parking actuator). Refer to TM19, "Removal and Installation".


Component Inspection (Parking Actuator Relay B)


1. CHECK PARKING ACTUATOR RELAY B

1.Disconnect the parking actuator relay B. Refer to "Component Parts Location"
2.Apply 12 V direct current between parking actuator relay B terminals 1 and 2.

CAUTION:
- Never make the terminals short.
- Connect the fuse between the terminals when applying the voltage.
3.Check the continuity between parking actuator relay B terminals 3 and 5.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace the parking actuator relay B.


Component Inspection (Motor Coil B)


1. CHECK MOTOR COIL B

1.Disconnect the parking actuator connector.
2.Check the resistance between parking actuator connector terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace the reduction gear due to malfunction in the motor coil B (parking actuator). Refer to TM19, "Removal and Installation".