Door Handle & Tailgate Switch Replacement Procedure Title: Door Handle & Tailgate Switch Replacement Procedure Spec Num 2921 XX XXX A XXXXTBD Date: 07-Aug-15 Version: 1.0 Page: 6 of 10 Prepared: Saichaitanya Checked: Nagnath Dhale Approved: Dinesh DG This specification is the exclusive property of Tata Motors Limited. Without their consent it may not be reproduced or given to third parties. The above specifications are subject to change and therefore suppliers are requested to refer the latest one. CONTROLLED COPY FOR RESTRICTED CIRCULATION © TATA MOTORS LTD. 2. DHS & TGS Replacement Procedure 2.1. Pre-checks/tasks to be done before replacing the DHS/ TGS 1) Perform all the necessary checks as per the troubleshooting guide, at wire harness, switches, circuit short to ground, short to battery or open, etc. 2) If step-1 above is NOT OK, i.e. fault is not rectified, then follow the DHS/ TGS replacement procedure given below. 2.2. DHS/ TGS replacement procedure PREQUISITE: 1) New DHS/ TGS shall be available for replacement. PROCEDURE: 1) Disconnect the battery. 2) Locate the faulty DHS/ TGS. (Refer Figure-1 for location of the DHS and Figure-2 for TGS). 3) Unscrew the DHS/ TGS with dedicated screw panel. 4) Remove DHS/ TGS connector (Refer Figure-3 for DHS connector and Figure 4 for TGS connector). 5) Remove the faulty DHS/ TGS. 6) Fix the new DHS/ TGS. 7) Connect DHS/ TGS connector into their respective sockets. 8) Ensure that DHS/ TGS connector is fitted tightly and properly. 9) Connect the battery. 10) After replacing the DHS/ TGS, check vehicle locking/ unlocking state changes by pressing the replaced DHS/ TGS. NOTE: The vehicle UID shall be present during DHS/ TGS press. 11) Connect the Diagnostics tool and clear the DTCs.
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