Diagnostic Test

Turn the ignition off.

Replace the Wiper ON/OFF relay with a known good relay.

With the Scan Tool, clear all FCM DTC's.

Turn the Wipers ON then OFF.

With the Scan Tool, read the Wiper DTC's.

Does the Scan Tool read: B2315-WIPER ON/OFF CONTROL CIRCUIT OPEN? 

Yes 

1. Replace the Integrated Power Module in accordance with the service information.
2. Perform BODY VERIFICATION TEST .

No 

1. Test complete.
2. Perform BODY VERIFICATION TEST .