TATA BSVI Gasoline_Bifuel Program – EMS ECU Bosch DTC Troubleshooting Service Manual Version: 2.6 Date: 5-10-2023 Prepared By: Pradip Shimpi Checked By: Yeshwant Jadhav Approved By: Sanjeev M. Document Part No: 2921 02 xxx xxxx Page: 1059 of 1720 Copyright © TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. Trouble Shooting:- Start Read IVN DTCs in ECM Is MTO logged against IPC in current state? No (In history) Check continuity between ECM CAN_H (C1 pin no. 132) to IPC CAN_H(pin no. 6) and ECM CAN_L (C1 pin no. 144) to IPC CAN_L(pin no. 5) in vehicle wiring side connector. Is continuity there? Repair the wiring harness Clear DTC Stop Yes Yes No U0155-31 Loss of communication with Instrument Panel Cluster Module- Bus Signals/ Message Failures
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