Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Wiper/Washer Schematics Connector End View Reference: Wiper/Washer Connector End Views DEFINITION: The rear wiper motor is inoperative in one or more modes, the rear washer pump may or may not operate. | |||
1 | Did you review the Rear Wiper/Washer System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 |
Does the rear wiper/washer system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 | Does the rear wiper motor operate when the rear washer switch is pressed? | Go to Step 9 | Go to Step 4 |
4 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 10 |
5 | Connect a 3-amp fused jumper from the accessory voltage circuit of the rear wiper switch to the signal circuit of the rear wiper motor. Does the rear wiper motor operate? | Go to Step 14 | Go to Step 6 |
6 |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 17 |
7 | Connect a test lamp from the accessory voltage circuit to the ground circuit of the rear wiper motor. Does the test lamp illuminate? | Go to Step 15 | Go to Step 8 |
8 | Connect a test lamp from the accessory voltage circuit of the rear wiper motor to a good ground. Does the test lamp illuminate? | Go to Step 19 | Go to Step 18 |
9 |
Does the test lamp illuminate? | Go to Step 15 | Go to Step 13 |
10 | Test the accessory voltage circuit of the rear wiper/washer switch for an open or short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 11 |
11 | Test the accessory voltage circuit of the rear wiper motor for a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 12 |
12 | Test the signal circuit of the rear wiper/washer switch for a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 16 |
13 | Test the signal circuit of the rear wiper/washer switch for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 14 |
14 | Inspect for poor connections at the rear wiper/washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 20 |
15 | Inspect for poor connections at the rear wiper motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 21 |
16 | Repair a short to ground in the control circuit of the rear washer pump. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 22 | -- |
17 | Repair an open or high resistance in the signal circuit of the rear wiper/washer switch. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 22 | -- |
18 | Repair an open or high resistance in the accessory voltage circuit of the rear wiper motor. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 22 | -- |
19 | Repair an open or high resistance in the ground circuit of the rear wiper motor. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 22 | -- |
20 | Replace the rear wiper/washer switch. Refer to Rear Window Wiper and Washer Switch Replacement . Did you complete the replacement? | Go to Step 22 | -- |
21 | Replace the rear wiper motor. Refer to Liftgate Wiper Motor Replacement . Did you complete the replacement? | Go to Step 22 | -- |
22 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
