Lost Communication With ECM / PCM "A"

P112 HYBRID BATTERY CONTROL: HYBRID BATTERY SYSTEM: U0100: Lost Communication with ECM / PCM "A"

DTC U0100 - Lost Communication with ECM / PCM "A"

DTC U0293 - Lost Communication with HV ECU

DESCRIPTION

The battery ECU receives signals from the hybrid vehicle control ECU, ECM, and gateway ECU via CAN (Controller Area Network) communication.






MONITOR DESCRIPTION

If the battery ECU detects malfunction in the CAN communication with the ECM or hybrid vehicle control ECU, it illuminates the MIL and sets a DTC.

MONITOR STRATEGY

U0100:





U0293:





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE





INSPECTION PROCEDURE

PROCEDURE

1. READ DTC OUTPUT (CODES ALL)
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch ON (IG) and the tester ON.
(c) Enter the following menus: Bus Check / Communication Malfunction DTC.
(d) Read and record DTCs.
HINT: When DTCs other than CAN communication malfunction DTCs are output simultaneously, first correct the CAN communication problem, and then perform troubleshooting for other DTCs.

NEXT -- GO TO CAN COMMUNICATION SYSTEM