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: 17 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. 3.1.4. Check – T4 Following could be the reasons when message displaying “charging may be interrupted due to error” is displayed on the Head unit as shown in Figure 13: 1. When permanent failure of charger driver failure detected e.g. short circuit or open circuit. 2. When permanent Coil failure detected. 3. When permanent temperature sensor failure is detected. 4. Permanent memory failure detected. 5. When any other permanent component failure which lead to permanent failure in charger functionality. 6. Fan output short circuit or open circuit is detected. o In case of above faults, there could be a WPC internal system fault and would need a WPC ECU replacement. Figure 13: “Error” message displayed on Head Unit
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