HEADLIGHT CLEANER RELAY INSPECTION


BHE091966122W12

1. Remove the headlight cleaner relay with the connector still connected.

2. Measure the voltage at each terminal (other than terminal F).

• If the voltage is not as specified in the Terminal Voltage Table (Reference), inspect the parts under "Inspection item(s)".

3. Disconnect the negative battery cable.

4. Verify that continuity at terminal F is as indicated in the Terminal Voltage Table (Reference).

• If there is any malfunction, inspect the parts under "Inspection item(s)".
– If the system does not work properly even though the parts or related wiring harnesses do not have any malfunction, replace the headlight cleaner relay.

Terminal Voltage Table (Reference)

Terminal

Signal name

Connected to

Measured condition

Voltage (V)/Continuity

Inspection item(s)

A
Headlight cleaner motor output
Headlight cleaner motor
Headlight cleaner activated (auto-operation or manual operation activated)
Alternates between 1.0 or less and B+
• Headlight relay
• Windshield wiper and washer switch (SeeWINDSHIELD WIPER AND WASHER SWITCH INSPECTION)
• Headlight cleaner motor (SeeHEADLIGHT CLEANER MOTOR INSPECTION)
• Related wiring harnesses
Except above
B+
D
Windshield washer motor output
Windshield wiper and washer switch
Turn the ignition switch to the ON position.
Turn the washer switch to the OFF position.
1.0 or less
• Headlight relay
• Windshield wiper and washer switch (SeeWINDSHIELD WIPER AND WASHER SWITCH INSPECTION)
• Related wiring harnesses
Turn the washer switch to the ON position.
B+
E
Headlight
Headlight relay
Light switch at ON position.
B+
• Headlight relay
• Related wiring harnesses
Except above
1.0 or less
F
GND
Body ground
Under any condition: Inspect for continuity to ground.
Continuity detected
• GND
• Related wiring harnesses