B2791

DTC B2791 Communication Condition Failure between ECM

DESCRIPTION

DTC Detection Condition:

This DTC is output when the ID code box does not respond to a verification request signal from the hybrid vehicle control ECU.

HINT:
- If the power switch is turned OFF immediately after a hybrid control system start, this DTC is also detected.
- If this DTC is detected, check if any DTCs such as B2799 are output.

Step 1:

INSPECTION PROCEDURE