Q5/X451 FATC DTC Troubleshooting Data Version: 1.0 Date: 16-Oct-2018 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. Author: ERC Page: 166 of 202 U131D-88:- CCH LIN Bus A-Bus Off Overview: ISO Code U131D-88 Customer Symptom FATC Malfunctions or goes OFF Fault Effects (On Vehicle) CCH inputs shall not be accepted by CCM Lamp Status (If Any) if CCH LIN BUS OFF is observed, CCM shall operate in last valid value state, CCM can take new values whenever it receives any user selection request from HU Fault Detection Condition When LIN signal (CCM vehicle side connector C1-7) is short to ground. Normal Operating Condition CCM is fully functional based on the input provide from CCH. Probable Trouble Area Check CCM vehicle side connector (pin C1-7) Healing Condition If there is a continuity between the Lin signal and Ground line correct the wiring harness (wiring harness short to Ground)
RkJQdWJsaXNoZXIy MTIwNTUz