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

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (UNLOCK DETECTION SWITCH)

(a) Check the Data List to ensure proper functioning of the unlock detection switch.

Main Body

OK:

The display is as specified in the normal condition column.

NG -- INSPECT REAR DOOR LOCK MOTOR ASSEMBLY LH (UNLOCK DETECTION SWITCH)

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures

2. INSPECT REAR DOOR LOCK MOTOR ASSEMBLY LH (UNLOCK DETECTION SWITCH)

(a) Remove the rear door lock motor LH.

for Double Cab: Removal

for CrewMax:

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:

Result

C -- REPLACE REAR DOOR LOCK MOTOR ASSEMBLY LH

B -- REPLACE REAR DOOR LOCK MOTOR ASSEMBLY LH Removal
A -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK MOTOR LH - MAIN BODY ECU AND BODY GROUND)

(a) Disconnect the O10 door lock connector.

(b) Disconnect the DC ECU 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 MAIN BODY ECU