TCM-BCM Can Communication Circuit Inspection
WARNING: This page is about a different car, the 2004 Suzuki XL-7 and 2004 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
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.
- Check TCM-BCM CAN communication circuit referring to "DTC B1156 (No. 56): CAN Communication Error (H27 Engine Model with A/T Only):".
- Recheck that the above indicators operate in normal.