Rear Power Seat Control System Parking Brake Switch Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK BRAKE WARNING LIGHT
CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - PARKING BRAKE SWITCH)
INSPECT PARKING BRAKE SWITCH ASSEMBLY
REAR POWER SEAT CONTROL SYSTEM - Parking Brake Switch Circuit |
DESCRIPTION
This circuit includes the parking brake switch assembly and fold seat control ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK BRAKE WARNING LIGHT |
Check that the brake warning light comes on when the parking brake is applied and goes off when the parking brake is released.
- OK:
- The brake warning light operates as specified above.
| 2.CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - PARKING BRAKE SWITCH) |
Disconnect the d1*1 or c1*2 ECU connector.
- *1: for LH Side
- *2: for RH Side
Disconnect the G77 parking brake switch connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
for LH SideTester Connection
| Condition
| Specified Condition
|
d1-40 (PKB1) - G77-1
| Always
| Below 1 Ω
|
d1-40 (PKB1) - Body ground
| Always
| 10 kΩ or higher
|
for RH SideTester Connection
| Condition
| Specified Condition
|
c1-40 (PKB1) - G77-1
| Always
| Below 1 Ω
|
c1-40 (PKB1) - Body ground
| Always
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| 3.INSPECT PARKING BRAKE SWITCH ASSEMBLY |
Remove the parking brake switch assembly (LandCruiser RM000003D75013X.html).
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
1 - Switch body
| On (Shaft is not pressed)
| Below 1 Ω
|
1 - Switch body
| Off (Shaft is pressed)
| 10 kΩ or higher
|
