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 | Are DTCs B3717 or B3718 stored in the body control module (BCM)? | Go to Step 3 | |
3 |
Do the windshield wipers operate correctly in any mode? | Go to Step 4 | |
4 | Turn the wiper switch to the high speed position. Do the windshield wipers operate at high speed? | Go to Step 5 | Go to Step 15 |
5 |
Do the windshield wipers operate at low speed after 5 seconds? | Go to Step 6 | Go to Step 9 |
6 | Turn the wiper switch through each delay position. Do the windshield wipers operate correctly in each delay position? | Go to Step 7 | Go to Step 33 |
7 | Turn the wiper switch to the mist position. Do the windshield wipers operate at low speed? | Go to Step 8 | Go to Step 33 |
8 | Turn the wiper switch to the wash position. Do the windshield wipers operate at low speed? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 11 |
9 |
Is the Wiper Delay Input equal to 0.00 volts? | Go to Step 21 | Go to Step 10 |
10 | Observe the Wiper Relay Cmd. parameter with a scan tool. Is the Wiper Relay Cmd. ON? | Go to Step 13 | Go to Step 12 |
11 |
Is the Washer Switch ON? | Go to Step 35 | Go to Step 20 |
12 |
Is the Wiper Park Switch Active? | Go to Step 32 | Go to Step 28 |
13 |
Does the test lamp illuminate? | Go to Step 32 | Go to Step 14 |
14 |
Does the test lamp illuminate? | Go to Step 24 | Go to Step 23 |
15 |
Does the test lamp illuminate? | Go to Step 32 | Go to Step 16 |
16 |
Does the test lamp illuminate? | Go to Step 17 | Go to Step 22 |
17 | Connect a test lamp between the windshield wiper switch signal 2 circuit from the wiper switch and the wiper 2 relay coil ground circuit. Does the test lamp illuminate? | Go to Step 18 | Go to Step 34 |
18 | Probe the wiper 2 relay voltage supply circuit with a test lamp connected to a good ground. Does the test lamp illuminate? | Go to Step 24 | Go to Step 19 |
19 |
Does the test lamp illuminate? | Go to Step 31 | Go to Step 34 |
20 |
Does the test lamp illuminate? | Go to Step 35 | Go to Step 29 |
21 |
Does the test lamp illuminate? | Go to Step 35 | Go to Step 25 |
22 |
Does the test lamp illuminate? | Go to Step 34 | Go to Step 26 |
23 |
Does the test lamp illuminate? | Go to Step 34 | Go to Step 27 |
24 | Test the windshield wiper motor high and low speed circuits for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 42 | Go to Step 30 |
25 | Test the windshield wiper switch signal 1 circuit for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 42 | Go to Step 33 |
26 | Test the windshield wiper switch signal 2 circuit from the wiper switch for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 42 | Go to Step 33 |
27 | Test the windshield wiper switch signal 2 circuit from the BCM for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 42 | Go to Step 35 |
28 | Test the windshield wiper motor park switch signal circuit for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 42 | Go to Step 35 |
29 | Test the windshield washer pump control circuit from the wiper switch for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 42 | Go to Step 33 |
30 | Inspect for poor connections at the wiper 2 relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 42 | Go to Step 36 |
31 | Inspect for poor connections at the wiper diode. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 42 | Go to Step 37 |
32 | Inspect for poor connections at 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 42 | Go to Step 38 |
33 | Inspect for poor connections at 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 42 | Go to Step 39 |
34 | Inspect for poor connections at the underhood fuse block. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 42 | Go to Step 40 |
35 | Inspect for poor connections at the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 42 | Go to Step 41 |
36 | Replace the wiper 2 relay. Refer to Relay Replacement . Did you complete the replacement? | Go to Step 42 | -- |
37 | Replace the wiper diode. Did you complete the replacement? | Go to Step 42 | -- |
38 | Replace the windshield wiper motor. Refer to Windshield Wiper Motor Replacement . Did you complete the replacement? | Go to Step 42 | -- |
39 | Replace the windshield wiper/washer switch. Refer to Turn Signal Multifunction Switch Replacement . Did you complete the replacement? | Go to Step 42 | -- |
40 | Replace the underhood fuse block. Refer to Underhood Electrical Center or Junction Block Replacement . Did you complete the replacement? | Go to Step 42 | -- |
41 | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 42 | -- |
42 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |