DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0293-87: Lost Communication With Hybrid Powertrain Control Module Missing Message; DTC U1170-87: Lost Communication With Brake System Control Module (ch2) Missing Message [12/2019 - 11/2023]: Procedure

WARNING: This page is about a different variant/trim than selected.

CHECK DTC OUTPUT (MOTOR GENERATOR)

Check for DTCs.

Powertrain > Motor Generator > Trouble Codes

Result

Result	Proceed to
None of the following DTCs are output.	A
Any of the following DTCs are also output.	B

Relevant DTC
P3124-87	Lost Communication between Drive Motor "A" and HV ECU Missing Message

HINT:

U0100-87, U0293-87 or U1170-87 may be stored due to a malfunction which also causes the DTCs in the preceding table to be stored. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.

Turn the ignition switch off.

Result:

GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2021] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2021 - 10/2022] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - 11/2023]

Result:

GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM). Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 10/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 11/2023]