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*STORED LOST COMMUNICATION DTCS (CONTINUED) For a complete wiring diagram Refer to Section 8W. • When Monitored: • With the ignition on • Battery voltage between 10 and 16 volts • IOD fuse installed • FCM is configured correctly • Set Condition: Possible Causes CAN B BUS CIRCUITS OPEN OR SHORTED DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES FCM NOT CONFIGURED CORRECTLY POWER OR GROUND FROM THE REPORTING MODULE MODULE THAT SET THIS DTC PREVIOUS SERVICE PERFORMED WITHIN THE LAST 100 KEY CYCLES (FUSE/RELAYS REMOVED, WIRING LOW BATTERY/JUMP START CONDITION IOD FUSE WAS REMOVED DURING SHIPPING CHECK FOR RELATED TSBS Diagnostic Test 1. VERIFY DTC IS STORED NOTE: Stored faults may indicate a customer perceived intermittent condition. NOTE: Ensure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. Is this DTC stored? Yes >> Go To 2 No >> Diagnose the active DTC. Refer to the Index for a list of the symptoms. 2. CHECK THE ENVIRONMENTAL DATA With the scan tool, read the loss of communication environmental data. Does the loss of communication environmental odometer data match up to any of the previous service Yes >> These DTCs may have been the result of other service procedures performed. Clear DTCs. No >> Go To 3 8E - 150 ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS WK |