For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
DEFINITION: This table diagnoses the rear washer pump inoperative and assumes that the rear wiper operates normally.
1 | Did you review the Rear Wiper/Washer System Description and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Wiper/Washer Systems
2 | Verify that the rear washers are inoperative. Do the washers operate normally? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3
3 |

1. Disconnect the rear washer pump. Refer to Rear Window Washer Pump Replacement for access.
2. Turn ON the ignition with the engine OFF
3. Connect a test light between cavity 2 of the rear washer pump connector and a good ground.
4. Depress the rear washer switch to the wash position.

Does the test light illuminate with the rear washer switch depressed to the wash position?

Go to Step 5

Go to Step 4

4 |

1. Disconnect the wiper/washer switch connector. Refer to Rear Window Wiper and Washer Switch Replacement for access.
2. Test for an open between cavity 2 of the rear washer pump connector and cavity 1 of the rear wiper/washer switch connector.

Did you test an open in the BLK/RED wire?

Go to Step 9

Go to Step 6

5 | Test for continuity between cavity 1 of the rear washer pump connector and ground. Was there continuity in the BLK wire? | Go to Step 7 | Go to Step 8
6 | Replace the rear wiper/washer switch. Refer to Rear Window Wiper and Washer Switch Replacement . Did you complete the replacement? | Go to Step 10 | --
7 | Replace the rear washer pump. Refer to Rear Window Washer Pump Replacement . Did you complete the replacement? | Go to Step 10 | --
8 | Repair the Blk wire between ground G104 and cavity 1 of the rear washer pump connector. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 10 | --
9 | Repair the BLK/RED wire between cavity 2 of the rear washer pump connector and cavity 1 of the rear wiper/washer switch connector. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 10 | --
10 | Operate the rear washers in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3