ERC, Chassis Engineering Prepared by : Sagar K Approved by: Bhavesh Raut Page | 67 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 C0040-02:- Brake Light Switch - Signal Plausibility Failure Overview: ISO Code C0040-02 Customer Symptom NA Fault Effects (On Vehicle) NA Lamp Status (If Any) ABS, EBD, ESP, HDC, HHC – available Fault Detection Condition ABS – OFF, EBD – OFF, ESP – OFF, HDC- OFF, HHC-OFF Normal Operating Condition ABS is functional in between 10 to 15V Probable Trouble Area Brake Light Switch Brake Light Switch Wiring harness Healing Condition Brake Light Switch completely functional Component Details: NA Preliminary Checks: Examine the mounting of the Brake light switch and correct if defective. After rectifying the fault perform Ignition Off/On and apply/release brake to get fault free system If fault persists even after above steps, check the Brake Light switch Wiring harness.
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