Step
| Action
| Value(s)
| Yes
| No
|
1
| Was the Wiper/Washer System Check performed?
| --
| Go to
Step 2
| Go to
Wiper/Washer System Check
|
2
| Determine if the windshield wipers are always on, or if the windshield
wipers cycle once when the ignition is turned to the ON position.
Are the windshield wipers always on?
| --
| Go to
Step 3
| Go to
Step 4
|
3
|
- Turn the ignition switch to the ON position.
- Turn the windshield wiper/washer switch to the OFF position.
- Disconnect the windshield wiper motor connector.
- Use a DMM in order to measure the voltage between terminal E
of the windshield wiper motor connector and a known good ground.
Does the voltage measure at the specified value?
| B+
| Go to
Step 5
| Go to
Step 6
|
4
|
- Turn the ignition switch to the ON position.
- Disconnect the windshield wiper motor connector.
- Use a DMM in order to measure the voltage between terminal D
of the windshield wiper motor connector and a known good ground.
Does the voltage measure at the specified value?
| B+
| Go to
Step 13
| Go to
Step 14
|
5
|
- Locate a short to B+ in CKT M9 and/or in CKT M808.
- Repair the short to B+ in CKT M9 or in CKT M808.
- If the CKTs are OK, replace the windshield wiper/washer switch.
Refer to
Windshield Wiper and Washer Switch Replacement - On Vehicle
in Steering.
Is the repair complete?
| --
| Go to
Step 15
| --
|
6
|
- Turn the ignition switch to the OFF position.
- Disconnect the windshield wiper motor relay K8 connector.
- Reconnect the windshield wiper motor connector.
- Turn the ignition switch to the ON position.
Does the windshield wiper motor operate?
| --
| Go to
Step 7
| Go to
Step 8
|
7
|
- Locate a short to B+ in CKT B7, CKT B810, or CKT P2.
- Repair the short to B+ in CKT B7, CKT B810, or
CKT P2.
- If these circuits are OK, replace the windshield wiper/washer
switch. Refer to
Windshield Wiper and Washer Switch Replacement - On Vehicle
in Steering.
- Note: A short to B+ on circuit P2 will also cause the windshield
wiper motor relay K8 to fail.
Is the repair complete?
| --
| Go to
Step 15
| --
|
8
| Use the DMM in order to measure the voltage between terminal 1
of the windshield wiper motor relay K8 and ground.
Does the voltage measure at the specified value?
| B+
| Go to
Step 9
| Go to
Step 10
|
9
|
- Locate a short to B+ in any of the following circuits:
- Repair any shorts to B+ in the CKTs.
- If the CKTs are OK, replace the windshield wiper/washer switch.
Refer to
Windshield Wiper and Washer Switch Replacement - On Vehicle
in Steering.
Is the repair complete?
| --
| Go to
Step 15
| --
|
10
|
- Reconnect all of the disconnected connectors.
- With the wipers operating, use a test light to backprobe the windshield
wiper motor relay K8 terminal 5 placing the other test light lead
to B+ .
- The wiper motor sends a ground signal to the windshield wiper
motor relay K8 when the wipers enter the park position.
Does the test light flash when the wipers enter the park position?
| --
| Go to
Step 11
|
Go to Step 12
|
11
| Replace the windshield
wiper motor relay K8.
Is the repair complete?
| --
| Go to
Step 15
| --
|
12
|
- Locate an open or a short to B+ in CKT U6 and/or in CKT U10.
- Repair any open or short to B+ in CKT U6 or in CKT U10.
- If the CKTs are OK, replace the windshield wiper motor. Refer
to
Windshield Wiper Motor Replacement
.
Is the repair complete?
| --
| Go to
Step 15
| --
|
13
| Replace the windshield wiper motor. Refer to
Windshield Wiper Motor Replacement
.
Is the repair complete?
| --
| Go to
Step 15
| --
|
14
|
- Locate an open in CKT FY2.
- Repair the open circuit in CKT FY2.
Is the repair complete?
| --
| Go to
Step 15
| --
|
15
|
- Reconnect all of the connectors and the components that were disconnected.
- Verify that the windshield wipers operate properly.
Do the windshield wipers operate properly?
| --
| Go to
Wiper/Washer System Check
| Go to
Step
1
|