## Wiper/Washers

#### Control Unit Input Test (cont'd)

22-173

5. With the connectors still disconnected, make these input tests at the connector.

- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the multiplex control unit must be faulty; replace the under-dash fuse/relay box assembly.

Cavity | Wire | Test condition | Test: Desired result | Possible cause if result is not obtained
J4 | BLK | Under all conditions | Check for continuity to ground: There should be continuity |

- Poor ground (G301)
- An open in the wire

Y6 | BLK | Under all conditions | Check for continuity to ground: There should be continuity |

- Poor ground (G501)
- An open in the wire

B1 | WHT/BLU | Ignition switch ON (II) and washer switch ON | Check for voltage to ground: There should be battery voltage |

- Blown No. 20 (20A)[No. 20 (30A)]fuse in the under-dash fuse/relay box
- Faulty wiper/washer switch
- An open in the wire

B6 | BLU/RED | Ignition switch ON (II) | Check for voltage to ground: There should be battery voltage |

- Blown No. 20 (20A)[No. 20 (30A)]fuse in the under-dash fuse/relay box
- Faulty wiper/washer switch
- Faulty windshield wiper motor
- An open in the wire

F6 | BLU/WHT | Ignition switch ON (II) | Check for voltage to ground: There should be battery voltage. |

- Blown No. 20 (20A)[No. 20 (30A)]fuse in the under-dash fuse/relay box
- Faulty windshield wiper motor
- An open in the wire

X7 | BLU/BLK | Ignition switch ON (II) and wiper switch in INT | Check for voltage to ground: There should be battery voltage |

- Blown No. 20 (20A)[No. 20 (30A)]fuse in the under-dash fuse/relay box
- Faulty wiper/washer switch
- An open in the wire

[ ]: 5-door KE model