Rear Door Unlock Detection Switch LH Circuit

DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: Rear Door UNLOCK Detection Switch LH Circuit

Rear Door UNLOCK Detection Switch LH Circuit

DESCRIPTION

The rear left side door unlock detection switch is built into the rear left side door lock assembly. The switch turns on when the rear left side door is locked and turns off when the door is unlocked.
The body ECU is connected to the rear left side door lock assembly via terminal LSWL and rear left side door lock/unlock state signals are input to the ECU.
The body ECU applies voltage to the door unlock detection switch via terminal LSWL. When the door unlock detection switch is on (there is continuity between the switch terminals), a lock state signal is input to the ECU. When the switch is off (there is no continuity between the switch terminals), an unlock state signal is input.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE OF DATA LIST (UNLOCK DETECTION SWITCH)
(a) Check the Data List to ensure proper function of the door unlock detection switch.

BODY (Body ECU):





OK:
The display is as specified in the normal condition.
NG -- INSPECT REAR DOOR LOCK ASSEMBLY (UNLOCK DETECTION SWITCH)
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
2. INSPECT REAR DOOR LOCK ASSEMBLY (UNLOCK DETECTION SWITCH)





(a) Remove the rear door lock assembly.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPLACE REAR DOOR LOCK ASSEMBLY
OK -- Continue to next step.
3. CHECK WIRE HARNESS (REAR DOOR LOCK ASSEMBLY - INSTRUMENT PANEL J/B (BODY ECU))





(a) Disconnect the rear door lock assembly connector.
(b) Disconnect the instrument panel J/B connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE