Only Rear Door LH Lock / Unlock Functions Do Not Operate
DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: Only Rear Door LH LOCK / UNLOCK Functions do not Operate
- Only Rear Door LH LOCK / UNLOCK Functions do not Operate
DESCRIPTION
The rear door ECU LH receives lock/unlock switch signals and activates the door lock motor according to these signals.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. PERFORM ACTIVE TEST USING TECHSTREAM (REAR DOOR LOCK LH)
(a) Select the Active Test, use the Techstream to generate a control command, and then check the door lock motor function.
Rear Right Door (Rear door ECU RH)
Result
NG -- INSPECT FUSE (D RR DOOR)
OK -- Continue to next step.
2. READ VALUE USING TECHSTREAM (DOOR LOCK POSITION SWITCH)
(a) Use the Data List to check if the door lock position switch is functioning properly.
Rear Left Door (Rear door ECU LH)
OK:
On tester screen, item changes between ON and OFF according to above chart.
NG -- INSPECT REAR DOOR LOCK ASSEMBLY LH (DOOR LOCK POSITION SWITCH)
OK -- Continue to next step.
3. CHECK REAR DOOR ECU LH (OPERATION)
(a) Replace the rear door ECU LH with a normal one Components.
(b) Check that all doors can be locked and unlocked by using the master switch.
OK:
All doors can be locked and unlocked with master switch.
NG -- REPLACE MAIN BODY ECU
OK -- END (REAR DOOR ECU LH IS DEFECTION)
4. INSPECT FUSE (D RR DOOR)
(a) Remove the D RR DOOR fuse from the main body ECU.
(b) Measure the resistance of the fuse.
Standard resistance:
NG -- REPLACE FUSE
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - BATTERY)
(a) Disconnect the O14 ECU connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
6. INSPECT REAR DOOR LOCK ASSEMBLY LH
(a) w/o Door Closer:
(1) Apply battery voltage to the door lock motor and check operation of the door lock motor.
OK:
(b) w/ Door Closer
(1) Apply battery voltage to the door lock motor and check operation of the door lock motor.
OK:
NG -- REPLACE REAR DOOR LOCK ASSEMBLY LH Components
OK -- Continue to next step.
7. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - REAR DOOR LOCK LH)
(a) Disconnect the O13 ECU connector.
(b) Disconnect the O22 door lock connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE REAR DOOR ECU LH Components
8. INSPECT REAR DOOR LOCK ASSEMBLY LH (DOOR LOCK POSITION SWITCH)
(a) w/o Door Closer:
(1) Measure the resistance according to the value(s) in the table below.
Standard resistance:
(b) w/ Door Closer:
(1) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE REAR DOOR LOCK ASSEMBLY LH Components
OK -- Continue to next step.
9. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - REAR DOOR LOCK LH)
(a) Disconnect the O13 ECU connector.
(b) Disconnect the O22 door lock connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE REAR DOOR ECU LH Components