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: 161 of 202 Preliminary Check 1. Check resistance in Diagnostic CAN pin no. 6 and 14. It should be 120ohm. 2. Check for short conditions between CAN_H-CAN_L, CAN_H-GND, CAN_L-GND, CAN_H-Vbatt and CAN_L-GND. There should not be any short circuit conditions. 3. Check continuity between IPC CAN_H (pin no. 25) vehicle side connector to OBD connector CAN_H (pin no. 6) and CAN_L (pin no. 26) vehicle side connector to ODB connector (pin no.14). 4. Turn ignition ON and Read IVN DTCs in IPC
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