2007 Grand Cherokee WK Factory Service Manual 8 - ELECTRICAL

U1108-ADDITIONAL CAN B ECU DETECTED





For a complete wiring diagram Refer to Section 8W.



Possible Causes
 
ADDITIONAL MODULE ADDED/REMOVED FROM THE CAN B BUS NETWORK
 




Diagnostic Test

1. RECONFIGURE THE FRONT CONTROL MODULE

Turn the ignition on.
With the scan tool, select network view and press the gateway button. This will list the CAN modules on the vehicle. Read and record the listed modules.
With the scan tool, select FCM, miscellaneous functions then add/remove ECUs.
With the scan tool, add or remove the module that was not configured in the FCM.
With the scan tool, erase DTC's.
Cycle the ignition from on to off 3 times and read the active FCM DTC's.

Does the scan tool display this DTC as active?

Yes


No