X2 Eagle ESP DTC Troubleshooting Data Version: 1.0 Date: 23-Oct-15 Author: ERC, Chassis E&E CoC Page: 127 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. C1026 - 4A:- Rear Axle Wheel Speed Sensors swapped - Incorrect Component Installed Overview: ISO Code C1026 - 4A Customer Symptom Warning Light Displayed Fault Effects (On Vehicle) EBD – Available, ABS & ESP – Not available Lamp Status (If Any) ABS – ON, EBD – OFF, ESP – ON Fault Detection Condition Rear Axle Wheel Speed Sensors swapped Normal Operating Condition All Wheel Speed Sensors are connected correctly to ABS/ESP ECU Probable Trouble Area Rear Wheel Speed Sensors connections. Healing Condition All Wheel Speed Sensors are connected correctly to ABS/ESP ECU 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: Not Applicable
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