P18AC

P18AC PARKING ACTUATOR RELAY A

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 "P18AC" detected?
YES- Go to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


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

LAY A
1.Disconnect the electric shift control module connector.
2.Disconnect the parking actuator relay A.
3.Check the continuity between parking actuator relay A vehicle side harness connector terminal and ground.





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

2. CHECK HARNESS BETWEEN PARKING ACTUATOR AND PARKING ACTUATOR RELAY A

1.Disconnect the parking actuator connector.
2.Check the voltage between parking actuator vehicle side harness connector terminal and ground.





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

3. CHECK HARNESS BETWEEN ELECTRIC SHIFT CONTROL MODULE AND PARKING ACTUATOR

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





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

4. CHECK PARKING ACTUATOR RELAY A

Check the parking actuator relay A. Refer to "Component Inspection (Parking Actuator Relay A)" .
Is the inspection result normal?
YES- Replace the electric shift control module. Refer to "Removal and Installation" Removal And Installation.
NO- Replace the parking actuator relay A. Refer to "Component Parts Location"


Component Inspection (Parking Actuator Relay A)


1. CHECK PARKING ACTUATOR RELAY A

1.Disconnect the parking actuator relay A. Refer to "Component Parts Location"
2.Apply 12 V direct current between parking actuator relay A 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 A terminals 3 and 5.





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