Diagnosis Procedure

DOOR SWITCH

KING CAB : Diagnosis Procedure

Regarding Wiring Diagram information, King Cab.

1. CHECK DOOR SWITCHES INPUT SIGNAL

With CONSULT
Check door switches ("DOOR SW-DR", "DOOR SW-AS") in DATA MONITOR mode with CONSULT. Refer to Door Lock.
- When any doors are open:
DOOR SW-DR:ON
DOOR SW-AS:ON

- When any doors are closed:
DOOR SW-DR:OFF
DOOR SW-AS:OFF

Without CONSULT





Check voltage between BCM connector M18 or M19 terminals 12, 47 and ground.





Is the inspection result normal?
YES- Door switch circuit is OK.
NO- GO TO 2

2. CHECK DOOR SWITCH CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect BCM.
3.Check continuity between front door switch connector D213 (LH), D314 (RH) terminal 2 and BCM connector M18, M19 terminals 12 and 47.
2 - 47: Continuity should exist
2 - 12: Continuity should exist

4.Check continuity between rear door switch upper connector D211 (LH), D312 (RH) terminal 1 and BCM
connector M18, M19 terminals 12 and 47.
1 - 47: Continuity should exist
1 - 12: Continuity should exist

5.Check continuity between rear door switch lower connector D212 (LH), D313 (RH) terminal 1 and BCM
connector M18, M19 terminals 12 and 47.
1 - 47: Continuity should exist
1 - 12: Continuity should exist

6.Check continuity between front door switch connector D213 (LH), D314 (RH) terminal 2 and ground.
2 - Ground: Continuity should not exist
7.Check continuity between rear door switch upper connector D211 (LH), D312 (RH) terminal 1 and ground.
1 - Ground: Continuity should not exist
8.Check continuity between rear door switch lower connector D212 (LH), D313 (RH) terminal 1 and ground.
1 - Ground: Continuity should not exist
Is the inspection result normal?
YES- GO TO 3
NO- Repair or replace harness.

3. CHECK DOOR SWITCHES GROUND CIRCUIT

1.Check continuity between front door switch connector D213 (LH), D314 (RH) terminal 3 and ground.
3 - Ground: Continuity should exist
2.Check continuity between rear door switch upper connector D211 (LH), D312 (RH) terminal 2 and ground.
2 - Ground: Continuity should exist
3.Check continuity between rear door switch lower connector D212 (LH), D313 (RH) terminal 2 and ground.
2 - Ground: Continuity should exist
Is the inspection result normal?
YES- GO TO 4
NO- Repair or replace harness.

4. CHECK DOOR SWITCHES

Check continuity between door switch terminals.










Is the inspection result normal?
YES- Replace BCM. Service and Repair.
NO- Replace door switch.