Wiper And Washer System Headlight Cleaner Switch Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT HEADLIGHT CLEANER SWITCH ASSEMBLY
CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER SWITCH ASSEMBLY - HEADLIGHT CLEANER CONTROL RELAY AND MAIN BODY ECU)
WIPER AND WASHER SYSTEM - Headlight Cleaner Switch Circuit |
DESCRIPTION
This circuit detects the conditions (on or off) of the headlight cleaner switch assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.INSPECT HEADLIGHT CLEANER SWITCH ASSEMBLY |
Remove the headlight cleaner switch assembly (LandCruiser RM000002XKK049X.html).
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Switch Condition
| Specified Condition
|
5 - 8
| Headlight cleaner switch on
| Below 1 Ω
|
5 - 8
| Headlight cleaner switch off
| 10 kΩ or higher
|
| 2.CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER SWITCH ASSEMBLY - HEADLIGHT CLEANER CONTROL RELAY AND MAIN BODY ECU) |
Disconnect the G72 headlight cleaner switch connector.
Disconnect the A38 headlight cleaner control relay connector.
Remove the main body ECU (LandCruiser RM000003WBO05FX.html).
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection
| Condition
| Specified Condition
|
G72-8 - A38-2
| Always
| Below 1 Ω
|
G72-5 - A-15 (HRLY)
| Always
| Below 1 Ω
|
G72-8 - Body ground
| Always
| 10 kΩ or higher
|
G72-5 - Body ground
| Always
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR (MAIN BODY ECU - HEADLIGHT CLEANER CONTROL RELAY) |
|
|
