Wipers Inoperative - All Modes STS
Diagnostic Aids
If the WPR MOD 30 A fuse is open, a short to ground in either one of the following circuits may be the cause:
| • | Accessory voltage circuit to the wiper module |
| • | Windshield washer pump control circuit |
If the WPR SW 7.5 A fuse is open, a short to ground in any one of the following circuits may be the cause:
| • | Accessory voltage circuit to the switch |
| • | Windshield washer pump control circuit |
| • | Windshield wiper motor high speed circuit |
| • | Windshield wiper switch signal 1 circuit |
| • | Windshield wiper switch signal 2 circuit |
| • | Windshield wiper switch On signal circuit |
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Wiper/Washer Schematics Connector End View Reference: Wiper/Washer Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 |
Does the windshield wiper/washer system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 |
Does the test lamp illuminate? | Go to Step 4 | Go to Step 9 |
4 | Connect a test lamp between the accessory voltage circuit of the wiper/washer module connector and the ground circuit of the wiper/washer module connector. Does the test lamp illuminate? | Go to Step 5 | Go to Step 10 |
5 |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 6 |
6 |
Does the test lamp illuminate? | Go to Step 8 | Go to Step 11 |
7 | Inspect for poor connections at the harness connector of the windshield wiper/washer module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 14 | Go to Step 12 |
8 | Inspect for poor connections at the harness connector of the windshield wiper/washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs . Did you find and correct the condition? | Go to Step 14 | Go to Step 13 |
9 | Repair the short to ground or open in the accessory voltage circuit of the windshield wiper/washer module. Refer to Wiring Repairs or Connector Repairs . Did you complete the repair? | Go to Step 14 | -- |
10 | Repair the high resistance or open in the ground circuit of the windshield wiper/washer module. Refer to Wiring Repairs or Connector Repairs . Did you complete the repair? | Go to Step 14 | -- |
11 | Repair a short to ground or open in the battery positive voltage circuit of the windshield wiper/washer switch. Refer to Wiring Repairs or Connector Repairs . Did you complete the repair? | Go to Step 14 | -- |
12 | Replace the windshield wiper/washer module. Refer to Windshield Wiper Motor Replacement . Did you complete the replacement? | Go to Step 14 | -- |
13 | Replace the windshield wiper/washer switch. Refer to Turn Signal Multifunction Switch Replacement . Did you complete the replacement? | Go to Step 14 | -- |
14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Wipers Inoperative - All Modes STS-V
Diagnostic Aids
If the WPR MOD 30 A fuse is open, a short to ground in either one of the following circuits may be the cause:
| • | Accessory voltage circuit to the wiper module |
| • | Windshield washer pump control circuit |
If the WPR SW 7.5 A fuse is open, a short to ground in any one of the following circuits may be the cause:
| • | Accessory voltage circuit to the wiper inhibit relay |
| • | Accessory voltage circuit to the switch |
| • | Windshield washer pump control circuit |
| • | Windshield wiper motor high speed circuit |
| • | Windshield wiper switch signal 1 circuit |
| • | Windshield wiper switch signal 2 circuit |
| • | Windshield wiper switch On signal circuit |
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Wiper/Washer Schematics Connector End View Reference: Wiper/Washer Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 |
Does the windshield wiper/washer system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 |
Does the Hood Closed Switch parameter display Active? | Go to Step 4 | Go to DTC B3006 |
4 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 17 |
5 | Connect a test lamp between the accessory voltage circuit of the wiper/washer module connector and the ground circuit of the wiper/washer module connector. Does the test lamp illuminate? | Go to Step 6 | Go to Step 18 |
6 |
Does the test lamp illuminate? | Go to Step 13 | Go to Step 7 |
7 |
Does the test lamp illuminate? | Go to Step 14 | Go to Step 8 |
8 |
Does the test lamp illuminate? | Go to Step 9 | Go to Step 19 |
9 | Connect a test lamp between the accessory voltage circuit of the wiper inhibit relay and the ground circuit of the relay. Does the test lamp illuminate? | Go to Step 10 | Go to Step 20 |
10 | Connect a test lamp between the control circuit of the wiper inhibit relay and the accessory voltage circuit of the relay. Does the test lamp illuminate? | Go to Step 12 | Go to Step 11 |
11 | Test the control circuit of the wiper inhibit relay between the relay and the RIM for a short to voltage or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 16 |
12 | Test the accessory voltage circuit of the wiper switch between the wiper inhibit relay and the wiper switch for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 15 |
13 | Inspect for poor connections at the harness connector of the windshield wiper/washer module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 21 |
14 | Inspect for poor connections at the harness connector of the windshield wiper/washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 22 |
15 | Inspect for poor connections at the harness connector of the wiper inhibit relay. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 23 |
16 | Inspect for poor connections at the harness connector of the rear integration module (RIM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 24 |
17 | Repair the short to ground or open in the accessory voltage circuit of the windshield wiper/washer module. Refer to Wiring Repairs or Connector Repairs . Did you complete the repair? | Go to Step 25 | -- |
18 | Repair the high resistance or open in the ground circuit of the windshield wiper/washer module. Refer to Wiring Repairs or Connector Repairs . Did you complete the repair? | Go to Step 25 | -- |
19 | Repair a short to ground or open in the accessory voltage circuit of the wiper inhibit relay. Refer to Wiring Repairs or Connector Repairs . Did you complete the repair? | Go to Step 25 | -- |
20 | Repair the high resistance or open in the ground circuit of the wiper inhibit relay. Refer to Wiring Repairs or Connector Repairs . Did you complete the repair? | Go to Step 25 | -- |
21 | Replace the windshield wiper/washer module. Refer to Windshield Wiper Motor Replacement . Did you complete the replacement? | Go to Step 25 | -- |
22 | Replace the windshield wiper/washer switch. Refer to Turn Signal Multifunction Switch Replacement . Did you complete the replacement? | Go to Step 25 | -- |
23 | Replace the wiper inhibit relay. Did you complete the replacement? | Go to Step 25 | -- |
24 | Replace the RIM. Refer to Control Module References for replacement, setup and programming. Did you complete the replacement? | Go to Step 25 | -- |
25 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
