Instruments - Outside Temperature Display Inaccurate
NUMBER: 08-017-10GROUP: Electrical
DATE: July 9, 2010
THE wiTECH DIAGNOSTIC APPLICATION IS THE PREFERRED METHOD FOR FLASHING ECUs.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF THE wiTECH DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 10.04 OR HIGHER TO PERFORM THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT:
Flash: CCN (Cluster) For Inaccurate Temp Display
OVERVIEW:
This bulletin involves flash reprogramming the Cabin Compartment Node (CCN or Cluster) with new software.
MODELS:
2010 (KK) Liberty
SYMPTOM/CONDITION:
The outside temperature reading in the cluster is slow to update or is inaccurate. Dealers are required to Flash the (CCN) with updated software.
DIAGNOSIS:
If the customer states that the outside temperature does not change for several minutes or several miles after the vehicle is started. There are no failure codes for this issue. If the vehicle operator describes the above Symptom/Condition, perform the Repair Procedure.
REPAIR PROCEDURE:
NOTE:
When flashing the CCN on this vehicle it is critical that static battery voltage and battery condition is taken in consideration. If the battery is in a low state of charge it should be charged with the appropriate battery charger first before attempting to flash the CCN.
CAUTION:
If the CCN flash fails and the module appears to be in a non-responsive state indicated in red on the ECU topology screen cycle ignition to the lock position and perform a physical battery disconnect. It is recommended that the battery be disconnected for 10-20 seconds to allow a full system shut down. Once the battery is reconnected turn the ignition key to the run position, take the appropriate measures to insure that the battery has a full state of charge before re-attempting to flash the CCN.
1. Using the wiTECH Diagnostic Application for flashing a CCN is made available through the wiTECH Diagnostic Application. For instructions select the "HELP tab on upper portion of the wiTECH window, then "HELP CONTENTS. This will open the Welcome to wiTECH Help screen were help topics can now selected.
2. Clear any DTC's that may have been set in other modules due to reprogramming. The wiTECH application will automatically present all DTCs after the flash and allow the tech to clear them.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.