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

X0 MCE (Tiago / Tigor) Instrument Cluster DTC Troubleshooting Data Version: 1.4 Date: 14-Dec-19 Author: Jeeva Raj / Sharad Shivane Page: 65 of 135 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. B191E - 12:- Illumination Dimming Level Output Short to Battery Overview:- ISO Code B191E -12 Customer Symptom N/A Fault Effects (On Vehicle) N/A Lamp Status (If Any) N/A Fault Detection Condition N/A Normal Operating Condition IC shall send the illumination o/p signal (PWM). Probable Trouble Area Related wiring Harness, connector or terminals damaged IPC connector wired wrong, Harness wire shorted. Healing Condition Clearing the Fault. Ignition On/Off Component Details:- N/A Preliminary Checks:- 1. Check Battery Voltage is normal in the range (9v - 16v) 2. Check Illumination o/p lines for Pinch/Cut. 3. Check ECU & Illumination o/p signal pin for oxidation, bending & damage. 4. Check Illumination o/p signal through set switch of the ECU connector.