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Author: Balaji / Amar /
Nitin / Umapathi /
Deepak
Page: 66 of 138
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.