TIAGO TIGOR BSVI - SERVICE MANUAL - DTC 24-12-2021

TML 7” Infotainment DTC Troubleshooting guide for Tigor Version: 0.1 Date: 13 th Aug 18 Author: Pritam Bansod Page: 47 of 55 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. U0028-13:- Vehicle Communication Bus A - open circuit Overview: ISO Code U0028-13 Customer Symptom No visual indication Fault Effects (On Vehicle) Interfacing functions with Body Control Module, HVAC Control Module and Instrument Panel Cluster Module will not work. Lamp Status (If Any) NA Fault Detection Condition 1. Open circuit of the CAN_H ( connector C1 pin no.2) and/or CAN_L(connector C1 pin no.5) 2. Short circuit of CAN_H to Battery or CAN_L to Ground Normal Operating Condition ECU communicates properly with TML diagnostic Tool. Probable Trouble Area CAN_H and CAN_L wires Healing Condition 1. Re-connection of the CAN_H (connector C1 pin no.2) and CAN_L(connector C1 pin no.5) to ECU 2. Removal of above mentioned short circuit conditions