Vehicle Platform: OSPREY / AMP ECU Name: PEPS DTC Troubleshooting Data Version: 1.2 Date: 29 Mar 2017 Author: Rajasekhara Reddy Page: 100 of 369 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. Troubleshooting:- Start Connect Diagnostic tool and Check for DTCs. Is DTC B164B – 12 present? Disconnect vehicle battery connection. (Please follow the safety guidelines) Yes Stop No Check DTC present is Current or Historic Is History? Yes No 1. Clear the DTC from memory 2. Turn the IGN to OFF 3. Start the IGN Check PEPS connector for terminal backout. Are connectors loose? 1. Remove PEPS Connectors. 2. Perform visual check of connectors for pins bent or damaged etc. Reconnect connectors firmly Yes No Is connector faulty? Correct connector fault (Terminals Bend) Check continuity between PEPS mating connector pin [C3-18] (Harness side) with battery [C3-9/10] Yes No Continuity Found? Correct PEPS mating connector Side wiring harness (Short to Battery) Yes No 1. Remove relay and check for normal function of relay. 2. Check if CRANK Relay feedback Line of CRANK relay is shorted to battery. Continuity Found? Correct CRANK Relay side wiring harness (Short to Battery) PEPS ECU faulty Replace PEPS ECU. Yes No
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