ERC, Chassis Engineering Prepared by : Sagar K Approved by: Bhavesh Raut Page | 9 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. Nexon MCE ESP DTC Troubleshooting data Document no: X01ME111219 Date: 11-Dec-19 C0031-12 :- Left Front Wheel Speed Sensor- Circuit Short to Battery Overview: ISO Code C0031-12 Customer Symptom Warning Light Displayed Fault Effects (On Vehicle) EBD – Availability depends on the fault type, ABS- Not available, ESP- Not available, HDC&HHC– Not available Lamp Status (If Any) ABS – ON, EBD – ON (Depends on the fault type), ESP – ON, HDC-ON, HHC-ON Fault Detection Condition FL WSS is not functional. Normal Operating Condition ABS is functional in between 10 to 15V Probable Trouble Area Short circuit of the WSS_FL 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.21) to UBAT.
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