Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 361 of 855 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. Lock Control DTCs B1301 - 11: Driver Door Ajar Switch - Circuit Short to Ground Overview: ISO Code (DTC Code) B1301 - 11 Customer Symptom 1. The IC shows Driver Door as open status, even if the driver door is closed as presumed by the customer. 2. Interior Roof lamp in Auto mode selection will ON for 10 minutes. 3. The Mis-lock sound occurs on RKE lock command. 4. The vehicle will not lock on providing the lock command. Fault Effects (On Vehicle) 1. Unnecessary battery power consumption (because Interior Roof lamp in Auto mode selection will always ON for 10 minutes.) 2. The vehicle will not enter into arm state, when RKE lock is given and no alarm functionality will work. Lamp Status (If Any) 1. Interior Roof lamp in Auto mode selection will ON for 10 minutes. 2. Driver door telltale status on IC shows always ON. Fault Detection Condition This fault will be logged after the input switch test routine execution. User has to operate the switch manually during routine. If short to ground fault is detected for Driver Door Ajar Switch, then this DTC code will be returned with the Routine results. Normal Operating Condition There should not be any fault returned by routine Probable Trouble Area 1. BCM connector Fault 2. Right side wiring harness short to ground 3. Driver Door Ajar Switch is damaged or stuck or faulty 4. BCM ECU fault Healing Condition 1. Ignition OFF ON 2. Clear DTC Command Component Details: Driver Door Switch, BCM connector Functionality: If the vehicle is unlocked and Driver door is opened, then the Driver door shall get opened. If the Driver door state is Short to Ground, then the Driver door state is in opened/ ajar state. If the Driver door is opened, then BCM shall receive the feedback of Driver door as open/ ajar status.
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