POWER DOOR LOCK CONTROL SYSTEM > Rear Door UNLOCK Detection Switch LH Circuit |
for Preparation Click here
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
1.READ VALUE USING TECHSTREAM (UNLOCK DETECTION SWITCH) |
Check the Data List to ensure proper functioning of the unlock detection switch.
Main Body Tester Display Measurement Item/Range Normal Condition Diagnostic Note RL-Door Lock Pos SW Rear door unlock detection switch LH signal / ON or OFF ON: Rear left door is unlocked
OFF: Rear left door is locked- - OK:
- The display is as specified in the normal condition column.
|
| ||||
OK | ||
|
2.INSPECT REAR DOOR LOCK MOTOR ASSEMBLY LH (UNLOCK DETECTION SWITCH) |
Remove the rear door lock motor LH.
- for Double Cab: (Click here)
- for CrewMax: (Click here)
- for Double Cab: (Click here)
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection Switch Condition Specified Condition 9 (E) - 6 (LSSR) Lock 10 kΩ or higher Unlock Below 1 Ω
Result Result Proceed to OK A NG (for Double Cab) B NG (for CrewMax) C
|
| ||||
|
| ||||
A | |
3.CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK MOTOR LH - MAIN BODY ECU AND BODY GROUND) |
Disconnect the O10 door lock connector.
Disconnect the DC ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection Condition Specified Condition O10-6 (LSSR) - DC-1 (LSWL) Always Below 1 Ω O10-6 (LSSR) - Body ground Always 10 kΩ or higher O10-9 (E) - Body ground Always Below 1 Ω
|
| ||||
OK | ||
|