Front Passenger Side Door Unlock Detection Switch Circuit

DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: Front Passenger Side Door UNLOCK Detection Switch Circuit
- Front Passenger Side Door UNLOCK Detection Switch Circuit

DESCRIPTION

The front passenger side door unlock detection switch is built into the front passenger door lock motor. The switch turns on when the front passenger door is unlocked and turns off when the door is locked. The main body ECU is connected to the front passenger door lock motor via terminal LSWP and front passenger door lock/unlock state signals are input to the ECU. The main body ECU applies voltage to the door unlock detection switch via terminal LSWP. 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 FRONT DOOR LOCK MOTOR ASSEMBLY RH (UNLOCK DETECTION SWITCH)

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

2. INSPECT FRONT DOOR LOCK MOTOR ASSEMBLY RH (UNLOCK DETECTION SWITCH)





(a) Remove the front door lock motor RH.

for Double Cab: Removal

for Regular Cab: Removal

for CrewMax:

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

Standard resistance:





Result





D -- REPLACE FRONT DOOR LOCK MOTOR ASSEMBLY RH

C -- REPLACE FRONT DOOR LOCK MOTOR ASSEMBLY RH Removal

B -- REPLACE FRONT DOOR LOCK MOTOR ASSEMBLY RH Removal
A -- Continue to next step.

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





(a) Disconnect the M4 door lock connector.

(b) Disconnect the J3 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