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. P3033 - 19: - Traction Cooling Pump - circuit current above threshold ............................................... 344 P3033 - 98: - Traction Cooling Pump - component or system over temperature................................. 351 P3033 - 07: - Traction Cooling Pump - Mechanical Failures ................................................................. 358 P3033 - 04: - Traction Cooling Pump - System Internal Failures .......................................................... 364 P3033 – 86: - Traction Cooling Pump - signal invalid ........................................................................... 370 P3033 – 13: - Traction Cooling Pump - circuit open ............................................................................. 376 P3033 – 12: - Traction Cooling Pump - circuit short to battery ............................................................ 382 P3033 – 11: - Traction Cooling Pump - circuit short to ground ............................................................ 389 P3034 – 13: - E-Drive ignition activation line - circuit open ................................................................. 395 P3034 – 12: - E-Drive ignition activation line - circuit short to battery ................................................ 400 P3034 – 11: - E-Drive ignition activation line - circuit short to ground ................................................ 404 P3036 - 13: - Power Train Main Relay activation line - circuit open .................................................... 408 P3036 - 12: - Power Train Main Relay activation line - circuit short to battery ................................... 413 P3036 - 11: - Power Train Main Relay activation line - circuit short to ground ................................... 418 P3037 - 13: - E-Drive power supply relay activation line - circuit open ............................................... 422 P3037 - 12: - E-Drive power supply relay activation line - circuit short to battery .............................. 426 P3037 - 11: - E-Drive power supply relay activation line - circuit short to ground ............................... 430 P3038 - 13: - HV Battery key on activation line - circuit open ............................................................. 434 P3038 - 12: - HV Battery key on activation line - circuit short to battery ............................................ 439 P3038 – 11: - HV Battery key on activation line - circuit short to ground ............................................ 443 P3047 - 09: - MCU contactor weld - Component Failures .................................................................... 448 P304A - 09: - HV Supply not available at E compressor- Component Failures ..................................... 454 P304B - 09: - HV Supply not available at MCU - Component Failures .................................................. 458 P2322 - 00: - VCU CAN Internal Error - no sub type information ......................................................... 463 P2401 - 05: - VCU Internal Error - System Programming Failures ........................................................ 467 P2402 - 05: - VCU Internal Error - System Programming Failures ........................................................ 470 P2403 - 00: - VCU Internal Error - no sub type information ................................................................. 474 P2403 - 92: - VCU Internal Error - performance or incorrect operation ............................................... 478 P2405 - 71: - VCU Internal Error - actuator stuck ................................................................................ 482 P2406 - 82: - VCU Internal Error - alive / sequence counter incorrect / not updated .......................... 486 P2407 - 05: - VCU Internal Error - System Programming Failures ........................................................ 490 P0606 - 49: - VCU Internal Error - internal electronic failure ............................................................... 494
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