Door Lock/Unlock Switch Check

With CONSULT-II

Check door lock/unlock switch ("CDL LOCK SW", "CDL UNLOCK SW") in DATA MONITOR mode in CONSULT-II. Refer to "DATA MONITOR "

• When door lock/unlock switch is turned to LOCK:

  CDL LOCK SW :ON 

• When door lock/unlock switch is turned to UNLOCK:

  CDL UNLOCK SW :ON 

  Fig 1: CONSULT-II Display - DATA MONITOR

  

Without CONSULT-II

1. Remove key from ignition key cylinder.
2. Check the signal between BCM connector M18 terminal 22 and ground with oscilloscope when door lock/unlock switch is turned to LOCK or UNLOCK.
3. Make sure the signals which are shown in the figure below can be detected during 10 seconds just after the door lock/unlock switch is turned to LOCK or UNLOCK.
   CONNECTOR TERMINAL VOLTAGE CHART
   
   

   Connector	Terminals		Voltage (V)
   	(+)	(-)
   M18	22	Ground

   Fig 2: Checking Signal Between BCM Connector Terminal 22 And Ground

   

OK or NG 

OK: Door lock and unlock switch circuit is OK.

NG: GO TO 2.

1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch or power window and door lock/unlock switch RH
3. Check continuity between main power window and door lock/unlock switch connector D8 terminal 17 and ground.

   17 - Ground : Continuity should exist. 

   Fig 3: Checking Continuity Between Main Power Window And Door Lock/ Unlock Switch Connector Terminal 17 And Ground

   
4. Check continuity between power window and door lock/unlock switch RH connector D105 terminal 11 and ground

   11 - Ground : Continuity should exist. 

OK or NG 

OK: GO TO 3.

NG: Repair or replace harness.

Fig 4: Checking Continuity Between Power Window And Door Lock/Unlock Switch RH Connector Terminal 11 And Ground

1. Disconnect BCM.
2. Check continuity between BCM connector M18 terminal 22 and main power window and door lock/unlock switch connector D7 terminal 14.

   22 - 14 : Continuity should exist. 

   Fig 5: Checking Continuity Between BCM Connector Terminal 22 And Main Power Window And Door Lock/Unlock Switch Connector Terminal 14

   
3. Check continuity between BCM connector M18 terminal 22 and power window and door lock/unlock switch RH connector D105 terminal 16.

   22 - 16 : Continuity should exist. 

OK or NG 

OK: GO TO 4.

NG: Repair or replace harness.

Fig 6: Checking Continuity Between BCM Connector Terminal 22 And Power Window And Door Lock/Unlock Switch Connector Terminal 16

Check continuity between BCM connector M18 terminal 22 and ground.

22 - Ground : Continuity should not exist. 

Fig 7: Checking Continuity Between BCM Connector Terminal 22 And Ground

OK or NG 

OK: Replace main power window and door lock/unlock switch or power window and door lock/unlock switch RH

NG: Repair or replace harness.