Nexon_WPCF ECU Service guide and replacement procedure Title: Nexon_WPCF ECU Service guide and replacement procedure Spec Num 2921 XX XXX A XXXXTBD Date: 22-May-2021 Version: 2.1 Page: 18 of 24 Prepared: Swati Yogi Checked: Awanish T. Approved: Himanshu Saxena 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. 4. WPCF ECU Assembly Replacement Procedure 4.1. Pre-checks/tasks to be done before replacing the WPCF ECU Assembly After performing all the necessary checks as per the troubleshooting guide, at wire harness, switches, relays, circuit short to ground, short to battery or open etc. and If no root cause is found i.e. fault is not rectified, then follow the below replacement procedure. 4.2. ECU Assembly replacement procedure PREQUISITE: 1) Gateway (Instrument Cluster) shall be functional. 2) Vehicle configuration data shall be available on the server. 3) New WPCF ECU assembly shall be available for replacement. PROCEDURE: 1) Disconnect the negative (-) terminal of the battery. 2) Locate the WPCF ECU. (Refer below figure for location of the WPCF ECU).
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