Diagnostic Test

WARNING: This page is about a different car, the 2009 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

INTEGRATED POWER MODULE
1. Turn the ignition off.
2. Replace the Wiper HI/LOW relay with a known good relay.
3. With the scan tool, clear all FCM DTCs.
4. Turn the Wipers ON then OFF.
5. With the scan tool, read the Wiper DTCs.
  Does the scan tool read: B2319-WIPER HI/LOW CONTROL CIRCUIT OPEN?
  
  Yes
  - Replace the Integrated Power Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Test complete.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .