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X2 Eagle
ESP DTC Troubleshooting Data
Version: 1.0
Date: 23-Oct-15
Author: ERC, Chassis E&E CoC
Page: 50 of 224
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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.
C003A-12:- Right Rear Wheel Speed Sensor- Circuit Short to Battery
Overview:
ISO Code
C003A-12
Customer Symptom
Warning Light Displayed
Fault Effects (On Vehicle)
EBD – Available, ABS & ESP – Not available
Lamp Status (If Any)
ABS – ON, EBD – OFF, ESP – ON
Fault Detection Condition
RR WSS is not functional.
Normal Operating Condition
ABS is functional in between 10 to 16V
Probable Trouble Area
Short circuit of the WSS_RR signal line to UBAT
Defective Wheel speed sensor
Healing Condition
Fault identification and rectification/ WSS replacement
Component Details:
Wheel Speed Sensor
: A wheel speed sensor is part of the Anti-lock Brake System (ABS). It is located on the tires. The
job of the wheel speed sensor is to constantly monitor and report the rotational speed of each tire to the ABS control
module.
Preliminary Checks:
Check short circuit of the WSS_FL signal line (Pin no.29) to UBAT.