NEXON 3.0 EV DTC Troubleshooting Document for VCU Version: 2.0 Date: 22-Sep-2023 Copyright © TATA MOTORS Ltd. This document must not be used in anyway, such as copying and redistributing to third parties, without the consent of author. P3028 - 11: - Cabin cooling Evaporator solenoid valve activation line - circuit short to ground .......... 172 P302B-13: - DC Charging Contactor Negative Coil Low Side activation line - circuit open ................... 176 P302B- 12: - DC Charging Contactor Negative Coil Low Side activation line - circuit short to battery . 181 P302B- 11: - DC Charging Contactor Negative Coil Low Side activation line - circuit short to ground . 186 P302C-13: - DC Charging Contactor Positive Coil Low Side activation line - circuit open ..................... 191 P302C- 12: - DC Charging Contactor Positive Coil Low Side activation line - circuit short to battery ... 197 P302C- 11: - DC Charging Contactor Positive Coil Low Side activation line - circuit short to ground ... 202 P302D - 94: - HV Battery Cooling Pump dry run detected - unexpected operation ............................. 207 P302D - 19: - HV Battery Cooling Pump - circuit current above threshold .......................................... 213 P302D – 98: HV Battery Cooling Pump - component or system over temperature ............................. 220 P302D - 07: - HV Battery Cooling Pump - Mechanical Failures ............................................................ 227 P302D - 04: - HV Battery Cooling Pump - System Internal Failures ..................................................... 233 P302D – 86: - HV Battery Cooling Pump - signal invalid ...................................................................... 238 P302D – 13: - HV Battery Cooling Pump - circuit open ........................................................................ 244 P302D – 12: - HV Battery Cooling Pump - circuit short to battery ....................................................... 251 P302D – 11: - HV Battery Cooling Pump - circuit short to ground ....................................................... 257 P302E - 13: - HV Battery Keep alive relay activation line - circuit open ............................................... 263 P302E - 12: - HV Battery Keep alive relay activation line - circuit short to battery .............................. 268 P302E - 11: - HV Battery Keep alive relay activation line - circuit short to ground .............................. 273 P302F - 13: - PTC Contactor Low Side activation line - circuit open ..................................................... 277 P302F - 12: - PTC Contactor Low Side activation line - circuit short to battery .................................... 284 P302F - 11: - PTC Contactor Low Side activation line - circuit short to ground .................................... 289 P3030 - 13: - E-Drive Contactor Low Side activation line - circuit open ............................................... 294 P3030 - 12: - E-Drive Contactor Low Side activation line - circuit short to battery .............................. 299 P3030 - 11: - E-Drive Contactor Low Side activation line - circuit short to ground .............................. 304 P3031 - 13: - Traction cooling fast fan relay activation line - circuit open ........................................... 309 P3031 - 12: - Traction cooling fast fan relay activation line - circuit short to battery .......................... 314 P3031 - 11: - Traction cooling fast fan relay activation line - circuit short to ground .......................... 319 P3032 - 13: - Traction cooling slow fan relay activation line - circuit open .......................................... 324 P3032 - 12: - Traction cooling slow fan relay activation line - circuit short to battery ......................... 329 P3032 - 11: - Traction cooling slow fan relay activation line - circuit short to ground ......................... 334 P3033 - 94: - Traction Cooling Pump dry run detected - unexpected operation .................................. 339
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