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: 224 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. B1017 – 12:- Control Signal to Accessory Relay Output – Short to Battery Overview:- ISO Code (DTC Code) B1017 – 12 Customer Symptom 1. Amber color Accessory LED will remain ON in OFF power mode. 2. Accessory load will remain continuously ON. Fault Effects (On Vehicle) 1. Amber color Accessory LED will remain ON in OFF power mode. 2. Accessory load will remain continuously ON. Lamp Status (If Any) N.A. Fault Detection Condition 1. Permanent short circuit to battery of control signal to Accessory relay output. 2. Wire cut & shorting to battery of Connector-2 / Pin-16 signal. 3. Bending of pin-16 of connector-2 and shorting to adjacent pin. Normal Operating Condition 1. Vehicle battery voltage shall be normal. 2. No fault on control signal to Accessory relay output should be present. 3. Amber color LED is SSB should be working normally. Probable Trouble Area 1. Permanent short circuit to battery of control signal to Accessory relay output. 2. Wire cut & shorting to battery of Connector-2 / Pin-16 signal with vehicle body. 3. Bending of pin-16 of connector-2 and shorting to ground pin. 4. Amber color LED is SSB is faulty. Healing Condition 1. After fixing short to battery fault on control signal to Accessory relay output, In OFF power mode amber color LED should turn OFF and in Accessory power mode amber color LED should turn ON. Table 49:- B1017 - 12 overview details Component Details:- 1. PEPS ECU 2. Accessory relay 3. Start/stop button Preliminary Checks:- 1. Check vehicle battery voltage, it should be normal. 2. Check ECU pins for oxidation, bending or damage.