Audio And Visual System (For Radio And Display Type) Parking Brake Switch Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK VEHICLE SIGNAL (OPERATION CHECK)
CHECK HARNESS AND CONNECTOR (PARKING BRAKE SWITCH ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY)
INSPECT PARKING BRAKE SWITCH ASSEMBLY
AUDIO AND VISUAL SYSTEM (for Radio and Display Type) - Parking Brake Switch Circuit |
DESCRIPTION
This circuit is from the parking brake switch assembly to the radio and display receiver assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
- HINT:
- When replacing the radio and display receiver assembly, it is necessary to perform the vehicle contract setting for Connected Services (w/ Connected Services Function).
| 1.CHECK VEHICLE SIGNAL (OPERATION CHECK) |
Display the "Vehicle Signal Check Mode" screen (LandCruiser RM000005LZX005X.html).
Check that the display changes between ON and OFF according to the parking brake operation.
- OK:
Parking Brake Position
| Display
|
Applied
| ON
|
Released
| OFF
|
- HINT:
- This display is updated once per second. As a result, it is normal for the display to lag behind the actual change in the switch.
| 2.CHECK HARNESS AND CONNECTOR (PARKING BRAKE SWITCH ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY) |
Disconnect the G77 parking brake switch assembly connector.
Disconnect the H51 radio and display receiver assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
H51-15 (PKB) - G77-1
| Always
| Below 1 Ω
|
H51-15 (PKB) - 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).
Inspect the parking brake switch assembly (LandCruiser RM000003D7300ZX.html).
