Step | Action | Values | 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 | Are the wipers only inoperative when the washer switch is depressed? | -- | Go to Step 16 | Go to Step 4 |
4 | Are the windshield wipers only inoperative in the high speed mode? | -- | Go to Step 11 | Go to Step 5 |
5 |
Does the test lamp illuminate? | -- | Go to Step 7 | Go to Step 6 |
6 |
Is the resistance within the specified range? | 1700-9500 ohms | Go to Step 17 | Go to Step 24 |
7 | Command the wiper 1 relay ON and OFF by cycling the windshield wiper/washer switch from the High to the Low positions. Do you hear a click when you command the wiper 1 relay ON and OFF? | -- | Go to Step 10 | Go to Step 8 |
8 |
Does the test lamp illuminate? | -- | Go to Step 23 | Go to Step 9 |
9 | Connect a test lamp from the supply voltage circuit of the wiper 1 relay coil to a good ground. Does the test lamp illuminate? | -- | Go to Step 27 | Go to Step 18 |
10 |
Does the test lamp illuminate? | -- | Go to Step 23 | Go to Step 18 |
11 | Command the wiper 2 relay ON and OFF by cycling the windshield wiper/washer switch from the High to the Low positions. Do you hear a click when you command the wiper 2 relay ON and OFF? | -- | Go to Step 14 | Go to Step 12 |
12 |
Does the test lamp illuminate? | -- | Go to Step 23 | Go to Step 13 |
13 | Connect a test lamp from the supply voltage circuit of the wiper 2 relay coil to a good ground. Does the test lamp illuminate? | -- | Go to Step 27 | Go to Step 20 |
14 |
Does the test lamp illuminate? | -- | Go to Step 15 | Go to Step 28 |
15 |
Does the test lamp illuminate? | -- | Go to Step 21 | Go to Step 23 |
16 |
Does the test lamp illuminate? | -- | Go to Step 24 | Go to Step 22 |
17 | Test the signal circuit of the wiper/washer switch for an open or a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 33 | Go to Step 26 |
18 | Test the supply voltage circuit of the wiper 1 relay coil for an open or a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 33 | Go to Step 26 |
19 | Test the low speed circuit of the windshield wiper motor for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 33 | Go to Step 25 |
20 | Test the supply voltage circuit of the wiper 2 relay coil for an open or a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 33 | Go to Step 24 |
21 | Test the high speed circuit of the windshield wiper motor for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 33 | Go to Step 25 |
22 | Test the control circuit of the windshield washer pump for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 33 | Go to Step 26 |
23 | Inspect for poor connections at the inoperative wiper relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 33 | Go to Step 29 |
24 | Inspect for poor connections at the harness connector of the windshield 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 33 | Go to Step 30 |
25 | Inspect for poor connections at the harness connector of the windshield wiper motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 33 | Go to Step 31 |
26 | Inspect for poor connections at the harness connector of the body control module (BCM) . Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 33 | Go to Step 32 |
27 | Repair an open or high resistance in the ground circuit of the inoperative wiper relay coil. Refer to Wiring Repairs or Connector Repairs . Did you complete the repair? | -- | Go to Step 33 | -- |
28 | Repair an open or high resistance in the battery voltage circuit of the wiper 2 relay switched input. Refer to Wiring Repairs or Connector Repairs . Did you complete the repair? | -- | Go to Step 33 | -- |
29 | Replace the inoperative wiper relay. Did you complete the replacement? | -- | Go to Step 33 | -- |
30 | Replace the windshield wiper/washer switch. Refer to Windshield Wiper and Washer Switch Replacement . Did you complete the replacement? | -- | Go to Step 33 | -- |
31 | Replace the windshield wiper motor. Refer to Windshield Wiper Motor Replacement . Did you complete the replacement? | -- | Go to Step 33 | -- |
32 | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 33 | -- |
33 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
