Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 807 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:- B1326-11- Express Down Output Circuit short to Ground START Connect Diagnostic tool and Run Input Test Routine and operate the switches as mentioned in the input switch test routine specification. Is DTC B1326 – 11 logged by Routine? Disconnect veh iclebattery connection. (Please follow the safety guidelines) Check connection between BCMand Express Down Switch Output P in Are connectors loose? Correct connector fault (Terminals Bend) 1.RemoveBCM Connector. 2.Perform visual check of connectors for pins bent or damaged Is connector faulty? STOP 1.Press Express down switch 2. Check continuity between BCM connector p in ) with Ground Continu ity Found? 1. Remove Expres s down switch 2.Perform visual check of connectors for pin bend or damaged Reconnect connectors f irmly Actuator Faulty? Correct Connector fault (Terminal Bend) NO YES YES NO YES YES YES NO NO NO Check if Express Down Output Signal is shorted to ground Correct the fault (Short to Ground) Operate the Express Down switch Check if Down action is successful? Reconnect all connectors f irmly NO YES Correct BCMside wiring harness ( Short to Ground) Continu ity Found? YES NO NO Connect battery and other connectors of BCM ECU, if disconnected. BCMECU Faulty Rep laceBCM ECU
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