Door Switch Circuit Check [King Cab]
Door Switch Circuit Check [King Cab]
Description
Detects door open/close condition.
Component Function Check
1. CHECK FUNCTION
With SDT
Check door switches in data list mode with SDT.
Is the inspection result normal?
YES
Door switch is OK.
NO
Refer to "Diagnosis Procedure".
Diagnosis Procedure
Regarding Wiring Diagram information, refer to [Power Door Lock System: Wiring Diagram [King Cab] Power Door Lock System [King Cab] ].
1. CHECK DOOR SWITCHES INPUT SIGNAL
With SDT
Check door switches ("DOOR SW-DR", "DOOR SW-AS") in data list mode with SDT. Refer to [SDT Function (BCM - DOOR LOCK)] SDT Function (BCM - Door Lock).
- When any doors are open:
- When any doors are closed:
Without SDT
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 BCM OUTPUT VOLTAGE
1 Turn ignition switch OFF.
2 Disconnect door switches.
3 Check voltage between BCM connector M18, M19 terminals 12, 47 and ground.
Is the inspection result normal?
YES
GO TO 3
NO
Replace BCM. Refer to [BCM: Removal and Installation] Removal and Replacement.
3. CHECK DOOR SWITCH CIRCUIT
1 Disconnect BCM.
2 Check continuity between door switch connector D213 (Front LH), D314 (Front RH) terminal 2, D211 (Rear upper LH), D312 (Rear upper RH), D212 (Rear lower LH), D313 (Rear lower RH) terminal 1 and BCM connector M18, M19 terminals 12, and 47.
3 Check continuity between door switch connector D213 (Front LH), D314 (Front RH) terminal 2, D211 (Rear upper LH), D312 (Rear upper RH), D212 (Rear lower LH), D313 (Rear lower RH) terminal 1 and ground.
Is the inspection result normal?
YES
GO TO 4
NO
Repair or replace harness.
4. CHECK DOOR SWITCHES GROUND CIRCUIT
Check continuity between door switch connector D213 (Front LH), D314 (Front RH) terminal 3, D211 (Rear upper LH), D312 (Rear upper RH), D212 (Rear lower LH), D313 (Rear lower RH) terminal 2 and ground.
Is the inspection result normal?
YES
GO TO 5
NO
Repair or replace harness.
5. CHECK DOOR SWITCHES
Check continuity between door switch terminals.
Is the inspection result normal?
YES
Check condition of harness and connector.
NO
Replace door switch.