HEADLIGHT CLEANER CONTROL MODULE INSPECTION

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1. Disconnect the negative battery cable.

2. Remove the front bumper. (See FRONT BUMPER REMOVAL/INSTALLATION.)

3. Remove the headlight cleaner control module with the connector still connected.

4. Measure the voltage at each terminal.

  • If the voltage is not as specified in the Terminal Voltage Table (Reference), 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 control module.

Terminal Voltage Table (Reference)

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Terminal | Signal name | Connected to | Measured condition | Voltage (V) | 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+ | • H/L CLEAN 25 A fuse • Headlight cleaner motor • Related wiring harnesses
Except above | B+
B | Windshield washer motor output | 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 • Related wiring harnesses
Turn the washer switch to the ON position. | B+
C | Headlight | Headlight relay | Light switch at ON position. | B+ | • Headlight relay • Related wiring harnesses
Except above | 1.0 or less
D | GND | Body ground | Under any condition | 1.0 or less | Related wiring harnesses
E | Headlight cleaner motor power supply | • Headlight cleaner motor • H/L CLEAN 25 A fuse • Headlight cleaner control module | Under any condition | B+ | • H/L CLEAN 25 A fuse • Related wiring harnesses
F | Headlight cleaner motor output | • Headlight cleaner motor • Headlight cleaner control module | Headlight cleaner activated (auto-operation or manual operation activated) | Alternates between 1.0 or less and B+ | • H/L CLEAN 25 A fuse • Headlight cleaner motor • Related wiring harnesses
Except above | B+
G | — | — | — | — | — | —
H | — | — | — | — | — | —