U0100-LOST COMMUNICATION WITH ECM/PCM (TIPM)

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
    • TIPM is configured correctly
  • Set Condition:

    Bus messages not received from the ECM/PCM for approximately 2 to 5 seconds.


Possible Causes
  
CAN C+ OR CAN C– BUS CIRCUITS OPEN OR SHORTED
  
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
  
TIPM NOT CONFIGURED CORRECTLY
  
ECM/PCM POWER AND GROUND
  
ECM/PCM
  
TIPM
  
MODULE THAT SET THIS DTC
  

Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING for diagnostic procedures and for further possible causes.

For a complete wiring diagram Refer to Section 8W.