P18AB

P18AB IGNITION SWITCH

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 5 seconds or more.
2.Check DTC.
Is "P18AB" detected?
YES- Go to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK ELECTRIC SHIFT CONTROL MODULE POWER SUPPLY CIRCUIT

1.Power switch OFF.
2.Disconnect the electric shift control module connector.
3.Check the voltage between electric shift control module vehicle side harness connector terminals and ground.





Which terminal value is abnormal?
Terminal 9-GO TO 2.
Terminal 42-GO TO 4.

2. CHECK HARNESS BETWEEN IPDM E/R AND ELECTRIC SHIFT CONTROL MODULE

1.Disconnect the IPDM E/R connector.
2.Check the continuity between IPDM E/R vehicle side harness connector terminal and electric shift control module vehicle side harness connector terminal.





3.Check the continuity between 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. DETECT MALFUNCTION ITEMS

Check the following items.
- Harness for short or open between power switch and IPDM E/R.
- Power switch
- Ignition relay
- 15A fuse (# 61, IPDM E/R)
- IPDM E/R
Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Repair or replace damaged parts.

4. DETECT MALFUNCTION ITEMS

Check the following items.
- Harness for short or open between power switch and electric shift control module vehicle side harness connector terminal 42.
- Power switch
- Ignition relay
- 15A fuse (# 6)
Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Repair or replace damaged parts.