DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Restraints Control Module; DTC U023A: Lost Communication with Front Camera Module [08/2013 - ]: Procedure
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK CAN COMMUNICATION SYSTEM
- Check if CAN communication DTCs are output. Refer to DIAGNOSIS SYSTEM [08/2013 - ]
.
Result
Result Proceed to CAN communication DTCs are output. A CAN communication DTCs are not output. B HINT:
If CAN communication system DTC U0100, U0129, U0131, U0142, U0151 or U023A and another DTC are output at the same time, perform troubleshooting for CAN communication system DTC U0100, U0129, U0131, U0142, U0151 or U023A first.
B → See step 2
A → See step 3
- Check if CAN communication DTCs are output. Refer to DIAGNOSIS SYSTEM [08/2013 - ]
.
- USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]
- GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]