Information Bus: Testing and Inspection

TCM-BCM CAN Communication Circuit Inspection

NOTE:
- When TCM-BCM CAN communication circuit is malfunction, combination meter indicates the following condition at the same time (H27 engine model with A/T only). Be sure to bear this mind when diagnosing trouble.
- POWER indicator turns OFF
- A/T selector position indicator turns OFF
- If "POWER" indicator and A/T selector position indicator display abnormal condition of TCM BCM CAN communication circuit described in "Description", perform the following procedure.

1. Check TCM-BCM CAN communication circuit referring to DTC B1156 (No. 56): CAN Communication Error (H27 Engine Model with A/T Only).
2. Recheck that the above indicators operate in normal.