Vehicle Platform: OSPREY / AMP ECU Name: PEPS DTC Troubleshooting Data Version: 1.2 Date: 29 Mar 2017 Author: Rajasekhara Reddy Page: 121 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. B1643–05:- Pairing Failed with UID – System programming Failures Overview:- ISO Code (DTC Code) B1643-05 Customer Symptom NA Fault Effects (On Vehicle) 1. Passive entry will not work with all paired UIDs And 2. Passive start will not work with all paired UID And 3. On pressing start-stop switch, “NoKeyDetectionTelltale” is present in instrument cluster even if UID (whose pairing is not successful) is present inside the vehicle. Lamp Status (If Any) NA Fault Detection Condition This DTC will get logged during PEPS-UID pairing. If pairing is started with UID and gets failed for respective, then PEPS logs this DTC. Normal Operating Condition 1. Passive start is working with all paired UID And 2. Passive entry is working with all paired UID And 3. On pressing start-stop switch, No “NoKeyDetectionTelltale” is present in instrument cluster with UID is present inside the vehicle. Probable Trouble Area 1. Process issue And 2. UID (Smart Key) And 3. Central Console LF Antenna. (Immo antenna) And 4. PEPS ECU. Healing Condition Ignition Transition:- IGN OFF IGN ON. On IGN ON during UID authentication no DTC is logged by PEPS. Table 27:- B1643- 05 overview details Component Details:- 1. UID (Smart Key) 2. PEPS ECU 3. Central Console Antenna (Immo Antenna) Preliminary Checks:- 1. Check battery voltage. It should be 9V and above. 2. Check respective ECU pins for oxidation, bending, & damage. 3. UID shall be inside and up to 7cm around the Front / Center console antenna
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