## Wiper/Washers

#### Rear Window Wiper Intermittent Control Unit Input Test (cont'd)

22-175

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

- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the control unit must be faulty; replace it.

Cavity | Wire | Test condition | Test: Desired result | Possible cause if result is not obtained
1 | GRN | Ignition switch ON (II) | Check for voltage to ground: There should be battery voltage. |

- Blown No. 9 (10A) fuse in the under-dash fuse/relay box
- An open in the wire

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

- Poor ground (G553)
- An open in the wire

2 | BLU/YEL | Ignition switch ON (II) and windshield wiper switch in HI | 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/washer switch
- An open in the wire

11 | BLU | Ignition switch ON (II) and windshield wiper switch in LO
12 | BLU/BLK | Ignition switch ON (II) and windshield wiper switch in INT
19 | GRN | Ignition switch ON (II) and shift lever position in [R] | Check for voltage to ground: There should be battery voltage |

- Blown No. 10 (7.5A) fuse in the under-dash fuse/relay box
- Faulty back-up light switch (M/T)
- Faulty transmission range switch (A/T)
- An open in the wire

6 | WHT/RED | Ignition switch ON (II) and rear window washer switch ON | Check for voltage to ground: There should be battery voltage |

- Blown No. 9 (10A) fuse in the under-dash fuse/relay box
- Faulty rear window wiper/washer switch
- An open in the wire

4 | LT GRN/RED | Ignition switch ON (II) and rear window wiper switch ON | Attach to ground: The rear window wiper motor should run.
9 | LT GRN | Ignition switch ON (II) | Attach to ground: The rear window wiper motor should run |

- Blown No. 9 (10A) fuse in the under-dash fuse/relay box
- Faulty rear window wiper motor
- An open in the wire

20 | LT GRN/BLK | Ignition switch ON (II) | Check for voltage to ground: There should be battery voltage |

- Blown No. 9 (10A) fuse in the under-dash fuse/relay box
- Faulty rear window wiper motor
- An open in the wire

[ ]: 5 - door KE model