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: 103 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. B164B - 14:- CRANK Relay Feedback - circuit short to ground or open Overview:- ISO Code (DTC Code) B164B – 14 Customer Symptom Could not start vehicle. Fault Effects (On Vehicle) Could not start vehicle. Lamp Status (If Any) NA Fault Detection Condition During Cranking ON. Normal Operating Condition During cranking, crank relay feedback line should be equal to battery voltage. Probable Trouble Area 1. Crank relay feedback line between PEPS ecu connector-3/pin-18 and vehicle ground signal.. Healing Condition IGN OFF -> ON. Table 23 :- B164B- 14 overview details Component Details:- 1. PEPS ECU. 2. Crank relay Preliminary Checks:- 1. Check Battery Voltage (9V-16V). 2. Check ECU pins for oxidation, bending & damage.