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ABS - DTC Troubleshooting Data
(Bolt, Zest, Tiago, Pelican, Nexon & Tigor)
Version: 1.4
Date: 21 April 2017
Author: ERC - Chassis E&E
Page 63 of 166
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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)
x
ABS is not available.
x
EBD is available.
Lamp Status (If Any)
Warning Light Displayed
Fault Detection Condition
RR WSS is not functional.
Normal Operating Condition
ABS is functional between 10 to 16V
Probable Trouble Area
x
Short circuit of the WSS_RR signal line to UBAT
x
Defective Wheel speed sensor
Healing Condition
NA
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
x
Check short circuit of the WSS_FL signal line (Pin no.29) to UBAT.