Vehicle Platform: OSPREY / AMP ECU Name: PEPS DTC Troubleshooting Data Version: 1.2 Date: 29 Mar 2017 Author: Rajasekhara Reddy Page: 180 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. B1641 – 15:- ClutchSwitch90PercPress Switch– Short to Battery or Open Overview:- ISO Code (DTC Code) B1641 - 15 Customer Symptom 1. Passive vehicle starting will not work only clamp state will change from OFF/ACC/IGN in manual transmission. 2. For Osprey clutchSwitch10Perc and clutchswitch90Perc both are present and if anyone signal is healthy clutch will function normally. Fault Effects (On Vehicle) 1. Passive vehicle starting will not work only clamp state will change from OFF/ACC/IGN in manual transmission. Lamp Status (If Any) N.A. Fault Detection Condition 1. Permanent short circuit to battery/open of ClutchSwitch90PrecPress signal of clutch sensor. 2. Wire cut & shorting to battery/open of Connector-2 / Pin-3 signal. 3. Bending of pins-3 of connector-2 and shorting to adjacent pin. Normal Operating Condition 1. Vehicle battery voltage shall be normal. 2. Clutch pedal shall not be pressed continuously for more than 3 min. 3. Valid paired UID should be present inside the vehicle, clutch pressed and SSB should be pressed. Probable Trouble Area 1. Permanent short circuit to battery/open of ClutchSwitch90PrecPress signal of clutch sensor. 2. Wire cut & shorting to battery/open of Connector-2 / Pin-3 signal with vehicle body. 3. Bending of pins-3 of connector-2 and shorting to battery/open. Healing Condition 1. After fixing short to battery/open fault on ClutchSwitch90PrecPress signal of clutch sensor, passive vehicle start should work normally. Table39:- B1641-15 overview details Component Details:- 1. Clutch sensor 2. PEPS ECU Preliminary Checks:- 1. Check vehicle battery voltage, it should be normal. 2. Check ECU pins for oxidation, bending or damage.
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