Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0131-87: Lost Communication with Power Steering Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0198-87: Lost Communication with Telematic Control Module "A" Missing Message [12/2024 - ]: Procedure
- GO TO CAN COMMUNICATION SYSTEM
HINT:
If CAN communication DTCs are output, refer to How to Proceed with Troubleshooting for the CAN communication system.
Refer to "CAN COMMUNICATION SYSTEM". Refer To CAN COMMUNICATION SYSTEM (FOR GASOLINE MODEL) , or Refer To CAN COMMUNICATION SYSTEM (FOR 1MOTOR-HEV MODEL)
Result
Proceed to NEXT Result:
NEXT
END
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.