Vehicle Platform: OSPREY / AMP ECU Name: PEPS DTC Troubleshooting Data Version: 1.2 Date: 29 Mar 2017 Author: Rajasekhara Reddy Page: 117 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. B1646–00:- PEPS Module Key Authentication Failure – No sub type Information Overview:- ISO Code (DTC Code) B1646-00 Customer Symptom 1. On cranking the vehicle Engine is not starting And 2. No ACC or IGN ON is possible even if UID is present And 3. “NoKeyDetectionTelltale” is present in instrument cluster even if UID is present And 4. RKE functions is also not working Fault Effects (On Vehicle) 1. On cranking the vehicle Engine will not start And 2. No ACC or ING ON will be possible And 3. No RKE functions will work Lamp Status (If Any) “NoKeyDetectionTelltale” is present in instrument cluster even if UID is present inside the vehicle. Fault Detection Condition On start-stop switch press, PEPS detect and does the UID authentication. If UID is detected but UID authentication is failed, then PEPS logs this DTC. Normal Operating Condition 1. On cranking the vehicle engine shall start seamlessly And 2. ACC or IGN ON is possible with UID And 3. No “NoKeyDetectionTelltale” is present in instrument cluster with UID is present inside the vehicle And 4. RKE functions working properly. Probable Trouble Area 1. UID (Smart Key) And 2. PEPS ECU Healing Condition Ignition Transition:- IGN OFF IGN ON. On IGN ON during UID authentication no DTC is logged by PEPS. Table26:- B1646- 00 overview details Component Details:- 1. UID (Smart Key) 2. PEPS ECU Preliminary Checks:- NA
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