Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 114 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. Trouble Shooting:- START Connect Diagnostic tool and Run Input Test Routine and operate the switches as mentioned in the input switch test routine specification. Is DTC B2236-12 logged by Routine? Disconnect vehicle battery connection. (Please follow the safety guidelines) Check BCM and Combiswitch connectors for terminal backout Are connectors loose? 1.Remove BCM Connectors. 2.Perform visual check of connectors for pins bent or damaged etc. Is connector faulty? Check continuity between BCM mating connector pin [ C1-15] (Harness side) with battery [C3-2/C3-1] Continuity Found? 1. Remove Combiswitch mating connector 2. Check continuity between BCM mating connector pin [ C1-15] and Position Lamp switch contact at combiswitch mating connector (harness side) (Please refer Circuit schematic / combiswitch drawings) STOP YES NO YES NO Reconnect connectors firmly Correct connector fault (Terminals Bend) YES NO Correct BCM mating connector Side wiring harness (Short to Battery) NO YES B2236 – 12: Position Lamp Switch Signal – Circuit Short To Battery A B
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