TML HARRIER Infotainment DTC Troubleshooting guide Version: 0.3 Draft Date: 17-Aug-18 Author: Vijaya Bhaskar B/Pritam Bansod Page: 76 of 109 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. CAN Bus Architecture 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_LGND. There should not be any short circuit conditions. 3. Check continuity between IPC CAN_H (pin no. 15) vehicle side connector to OBD connector CAN_H (pin no. 6) and CAN_L (pin no. 14) vehicle side connector to ODB connector CAN_L (pin no.14). 4. Read IVN DTCs in IPC in IGN ON condition.
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