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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 15 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.
C0031-64 - Left Front Wheel Speed Sensor- Signal Plausibility Failure
Overview
ISO Code
C0031-64
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
FL WSS is not functioning as expected
Normal Operating Condition
ABS is functional between 10 to 16V
Probable Trouble Area
x
Loose contact/intermittent short in the WSS line
x
Too much air gap
x
ECU faulty
x
WSS
x
Worn or Missing teeth
x
Non-plausible high wheel
acceleration/Gradient/frequency
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 for loose contact/intermittent short in the WSS line and remove it. (Pin no. 8, 4, 18 and 29 w.r.t to
GND (pin no.13) and battery (pin no.1)
x
Check WSS is installed and WSS is not dislodged from bracket / WSS is securely fastened.
x
Check air gap. It should not be too much.
x
Check for worn or missing teeth.