3138 / 4910
X2 Eagle
ESP DTC Troubleshooting Data
Version: 1.0
Date: 23-Oct-15
Author: ERC, Chassis E&E CoC
Page: 105 of 224
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.
C0040-64:- Brake Pedal Switch “A”- Signal Plausibility Failure
Overview:
ISO Code
C0040-64
Customer Symptom
Warning Light Displayed
Fault Effects (On Vehicle)
NA
Lamp Status (If Any)
ABS & EBD – Available, ESP – Not available
Fault Detection Condition
ABS – OFF, EBD – OFF, ESP – ON
Normal Operating Condition
ABS is functional in between 10 to 16V
Probable Trouble Area
Master cylinder pressure increase without any
hardwired BLS signals being set during no control
The BLS-signal is set while the accelerator pedal is
pressed with no active control for a long time
Mechanical defect or wrong mounting of BLS
Healing Condition
Fault Rectification/ ECU replacement
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, replace ECU