Nexon MCE 2 Gen2 Digital Instrument Cluster DTC Troubleshooting Data Version: 1.0 Date: 11-June-23 Author: Vasant Date Page: 121 of 141 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. U0131-08:- Lost communication with EPAS- Message Time Out Failure Overview:- ISO Code U0131-08 Customer Symptom Hard steering, EPAS lamp ON Fault Effects (On Vehicle) Default steering assistance Lamp Status (If Any) EPAS lamp ON Fault Detection Condition EPAS connector is not connected properly or disconnected from its location CAN Stub wire from EPAS connector side is disconnected EPAS ECU is not powered up Normal Operating Condition EPAS ECU communicates properly with TML diagnostic Tool. Probable Trouble Area Disconnection of the EPAS connector Healing Condition To fix the EPAS connector correctly and Fix the wiring harness issues from EPAS side. Trouble Shooting:- Start Read IVN DTCs in IPC If MTO logged against EPAS in current state? No (In history) Check continuity between EPAS CAN_H (vehicle pin connector pin no.3 ) to IPC CAN_H(pin no.6 ) and EPAS CAN_L (vehicle pin connector pin no.1 ) to IPC CAN_L(pin no. 5) in vehicle wiring side connector. Is continuity there? Repair the wiring harness Clear DTC Stop Check Ignition (vehicle pin connector pin no.2), Battery (Battery pin connector pin no.1,2) and Ground (Torque pin connector pin no.5 ) of EPAS is properly connected or not. Also check fuse blown (fuse-5A ) Do necessary repair in the harness Yes Yes No U0131-08 Loss of communication with EPAS
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