Vehicle Platform: OSPREY / AMP ECU Name: PEPS DTC Troubleshooting Data Version: 1.2 Date: 29 Mar 2017 Author: Rajasekhara Reddy Page: 108 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. B1639–06:- Module ECM/PCM & PEPS handshake failed-Algorithm Based Failures Overview:- ISO Code (DTC Code) B1639-06 Customer Symptom 1. On cranking the vehicle Engine is not starting And 2. Immo telltale on instrument cluster stays ON after IGN ON. Fault Effects (On Vehicle) 1. On cranking the vehicle Engine will not start And 2. Immo telltale on instrument cluster will stay ON after IGN ON. Lamp Status (If Any) Immo telltale lamp on instrument cluster stays ON after IGN ON. Fault Detection Condition On IGN ON EMS sends key authentication request to PEPS, if any algorithmic fault is detected, PEPS ECU logs this DTC. Normal Operating Condition 1. On cranking the vehicle engine shall start seamlessly. 2. After IGN ON Immo telltale on instrument cluster shall stay OFF. Probable Trouble Area 1. PEPS ECU 2. EMS ECU Healing Condition Ignition Transition:- IGN OFF IGN ON. On IGN ON after EMS key authentication request no DTC is logged by PEPS. Table 194:- B1639- 06 overview details Component Details:- 1. PEPS ECU 2. EMS ECU Preliminary Checks:- 1. After making the IGN ON, check whether immo telltale on instrument cluster is continuously ON or not.
RkJQdWJsaXNoZXIy MTIwNTUz