Vehicle Platform: OSPREY / AMP ECU Name: PEPS DTC Troubleshooting Data Version: 1.2 Date: 29 Mar 2017 Author: Rajasekhara Reddy Page: 205 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. B131D – 11:- Hardwired Wakeup Output to BCM– Short to Ground Overview:- ISO Code (DTC Code) B131D - 11 Customer Symptom 1. If vehicle is in sleep mode (i.e. all loads are OFF for more than 2 min) than Passive entry/exit will not work. 2. If vehicle is ideal than UID button commands lock, unlock, approach, tailgate, window-up, window-down & vehicle seek functions will not work. Fault Effects (On Vehicle) 1. If vehicle is in sleep mode (i.e. all loads are OFF for more than 2 min) than Passive entry/exit will not work. 2. If vehicle is ideal than UID button commands lock, unlock, approach, tailgate, window-up, window-down & vehicle seek functions will not work. Lamp Status (If Any) N.A. Fault Detection Condition 1. Permanent short circuit to ground of hardwired wakeup output to BCM signal. 2. Wire cut & shorting to ground of Connector-2 / Pin-11 signal. 3. Bending of pin-11 of connector-2 and shorting to adjacent pin. Normal Operating Condition 1. Vehicle battery voltage shall be normal. 2. No fault on hardwired wakeup output to BCM should be present. Probable Trouble Area 1. Permanent short circuit to ground of hardwired wakeup output to BCM. 2. Wire cut & shorting to ground of Connector-2 / Pin-11 signal with vehicle body. 3. Bending of pin-11 of connector-2 and shorting to ground pin. Healing Condition 1. After fixing short to ground fault on hardwired wakeup output to BCM turn off all load and wait for 2min for PEPS to go into sleep mode, Passive entry/exit should work along with all UID button functions. Table 45:- B131D-11 overview details Component Details:- 1. PEPS ECU. 2. BCM ECU Preliminary Checks:- 1. Check vehicle battery voltage, it should be normal. 2. Check ECU pins for oxidation, bending or damage.
RkJQdWJsaXNoZXIy MTIwNTUz