Step | Action | Values | Yes | No |
|---|---|---|---|---|
Schematic Reference: Wiper/Washer Schematics Connector End View Reference: Wiper/Washer Connector End Views | ||||
1 | Did you perform the Wiper/Washer Diagnostic System Check? | -- | Go to Step 2 | |
2 |
Does the windshield wiper/washer system operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Are the wipers only inoperative when the washer switch is depressed? | -- | Go to Step 17 | Go to Step 4 |
4 | Are the windshield wipers only inoperative in the high speed mode? | -- | Go to Step 12 | Go to Step 5 |
5 |
Does the scan tool indicate that Off, Delay 1, Delay 2, Delay 3, and Mist/Hi/Lo is correctly displayed each wiper/washer switch position? | -- | Go to Step 7 | Go to Step 6 |
6 |
Is the resistance within the specified range? | 560-7900 ohms | Go to Step 18 | Go to Step 26 |
7 | Command the Wiper 1 relay ON and OFF by cycling the wiper/washer switch from the high to the low positions. Do you hear a click from the Wiper 1 relay in the underhood fuse block, when you command the relay ON and OFF? | -- | Go to Step 10 | Go to Step 8 |
8 |
Does the test lamp illuminate? | -- | Go to Step 25 | 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 29 | Go to Step 19 |
10 |
Does the test lamp illuminate? | -- | Go to Step 11 | Go to Step 20 |
11 | Connect a 10-ampere fused jumper wire from the Wiper 1 relay switched input to the relay switched output to the low speed circuit of the windshield wiper motor. Does the wiper motor operate at low speed? | -- | Go to Step 25 | Go to Step 21 |
12 | Command the Wiper 2 relay ON and OFF by cycling the wiper/washer switch from the high to the low positions. Do you hear a click from the Wiper 2 relay in the underhood fuse block, when you command the relay ON and OFF? | -- | Go to Step 15 | Go to Step 13 |
13 |
Does the test lamp illuminate? | -- | Go to Step 25 | Go to Step 14 |
14 | 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 29 | Go to Step 22 |
15 |
Does the test lamp illuminate? | -- | Go to Step 16 | Go to Step 31 |
16 | Connect a 10-ampere fused jumper wire from the Wiper 2 relay switched input to the relay switched output to the high speed circuit of the windshield wiper motor. Does the wiper motor operate at high speed? | -- | Go to Step 25 | Go to Step 23 |
17 |
Do the windshield wipers operate? | -- | Go to Step 26 | Go to Step 24 |
18 | Test the signal circuit of the wiper/washer switch for an open or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 28 | |
19 | 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 in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 36 | Go to Step 28 |
20 | Test the battery voltage circuit of the Wiper 1 relay switched input for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 36 | Go to Step 30 |
21 | Test the low speed circuit of the windshield wiper motor for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 36 | Go to Step 27 |
22 | 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 in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 36 | Go to Step 26 |
23 | Test the high speed circuit of the windshield wiper motor for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 36 | Go to Step 27 |
24 | Test the control circuit of the windshield washer pump for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 36 | Go to Step 28 |
25 | Inspect for poor connections at the inoperative wiper relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 36 | Go to Step 32 |
26 | 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 in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 36 | Go to Step 33 |
27 | 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 in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 36 | Go to Step 34 |
28 | Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 36 | Go to Step 35 |
29 | Repair an open or high resistance in the ground circuit of the inoperative wiper relay coil. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 36 | -- |
30 | Repair a short to ground on the low or high speed circuits of the windshield wiper motor. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 36 | -- |
31 | 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 in Wiring Systems. Did you complete the repair? | -- | Go to Step 36 | -- |
32 | Replace the inoperative wiper relay. Did you complete the replacement? | -- | Go to Step 36 | -- |
33 | Replace the windshield wiper/washer switch. Refer to Windshield Wiper and Washer Switch Replacement . Did you complete the replacement? | -- | Go to Step 36 | -- |
34 | Replace the windshield wiper motor. Refer to Windshield Wiper Motor Replacement . Did you complete the replacement? | -- | Go to Step 36 | -- |
35 |
Important: Perform the programming or set up procedure for the control module if required. Replace the BCM. Refer to Body Control Module Replacement in Body Control System. Did you complete the replacement? | -- | Go to Step 36 | -- |
36 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
