Power Door Lock Control System (For Sedan) Only Rear Door Lh Lock / Unlock Functions Do Not Operate
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT REAR DOOR LOCK ASSEMBLY LH
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR DOOR LOCK ASSEMBLY LH)
POWER DOOR LOCK CONTROL SYSTEM (for Sedan) - Only Rear Door LH LOCK / UNLOCK Functions do not Operate |
DESCRIPTION
The main body ECU receives lock/unlock switch signals and activates the door lock motor accordingly.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.INSPECT REAR DOOR LOCK ASSEMBLY LH |
Apply the battery voltage to the door lock motor and check the operation of the door lock motor.
- OK:
Measurement Condition
| Specified Condition
|
Battery positive (+) → Terminal 4
Battery negative (-) → Terminal 1
| Lock
|
Battery positive (+) → Terminal 1
Battery negative (-) → Terminal 4
| Unlock
|
| 2.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR DOOR LOCK ASSEMBLY LH) |
Disconnect the 4A main body ECU connector.
Disconnect the I3 door lock connector.
Measure the resistance.
- Standard resistance:
Tester Connection
| Specified Condition
|
4A-3 (ACT+) - I3-4 (L)
| Below 1 Ω
|
4A-4 (ACT-) - I3-1 (UL)
| Below 1 Ω
|
Reconnect the main body ECU connector.
Reconnect the door lock connector.
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
