TIAGO TIGOR BSVI - SERVICE MANUAL - DTC 24-12-2021

Vehicle Platform: NEXON, X4, Q5, TIGOR_MCE ECU Name: PEPS DTC Troubleshooting Data Version: 1.7 Date: 01 Aug 2019 Author: Rajasekhara Reddy Page: 160 of 389 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. B1318 – 15:- Driver Door Handle Switch – Short to Battery or Open Overview:- ISO Code (DTC Code) B1318 - 15 Customer Symptom Passive vehicle locking or unlocking from driver door side does not work. Fault Effects (On Vehicle) Passive vehicle locking or unlocking from driver door side does not work. Lamp Status (If Any) N.A. Fault Detection Condition 1. Permanent short circuit to battery/open of Driver door handle switch. 2. Wire cut & shorting to battery/open of Connector-1 / Pin- 15 signal. 3. Bending of pins-15 of connector-1 and shorting to each adjacent pin. Normal Operating Condition 1. Vehicle battery voltage shall be normal. 2. Driver door handle switch shall not be pressed continuously for more than 20 sec. 3. All doors should be closed and vehicle should be in un- lock condition. 4. Valid paired UID should be present in driver door side and driver DHS should be pressed. Probable Trouble Area 1. Permanent short circuit to battery/Open of Driver door handle switch. 2. Wire cut & shorting to battery/open of Connector-1 / Pin- 15 signal with vehicle body or together. 3. Bending of pins-15 of connector-1 and shorting to each adjacent pin. Healing Condition 1. After fixing short to battery/open fault on driver door handle switch, passive vehicle locking should be performed from co-driver DHS or trunk DHS. 2. This is need for driver door handle switch to restore normal functioning. 3. Finally check passive vehicle locking/unlocking from driver DHS. Table 36 :- B1318-15 overview details Component Details:- 1. Driver door handle switch 2. Driver door handle switch assembly pick-tail. 3. PEPS ECU