Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 658 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. B162D - 12: Tailgate State Switch - Circuit short to Battery Overview: ISO Code B162D - 12 Customer Symptom 1. Interior Roof lamp in Auto mode selection doesn’t operate when Tailgate is opened. 2. The vehicle will get lock on RKE lock command. Fault Effects (On Vehicle) Interior Roof lamp in Auto mode selection does not operate when Tailgate is opened. Lamp Status (If Any) 1. Roof lamp in Auto mode selection is OFF. 2. IC shows Tailgate open status always 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 battery or open circuit fault is detected for Tailgate State 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. Rear side wiring harness Short to battery 3. Tailgate State Switch is damaged or stuck or faulty 4. BCM ECU fault Healing Condition 1. Ignition OFF ON 2. Clear DTC Command Component Details: Tailgate State Switch, BCM connector Functionality: If the Tailgate State Switch is short to Battery, then the Tailgate State is in open state. If the Tailgate State is open, then BCM shall receive the feedback of Tailgate State as open status. Preliminary Checks: Check Battery Voltage Check ECU pins for oxidation, bending & damage. Trouble Shooting:
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