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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 (SeeRELAY INSPECTION) • 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 (SeeRELAY INSPECTION) • 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 (SeeRELAY INSPECTION) • 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