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. 9. Check for loose connection of LV wiring harness between 3in1 and VCU 10. Check for damage to LV wiring harness connections between 3in1 and VCU Trouble Shooting: - 1. Keep the vehicle in Ignition On Step No. Description Check point If Yes If No 1 Connect service tool to the vehicle Read VECU DTCs if P30AA-68 is present in confirmed state Go to Step 2 - 2 Read 3in1 combo - DCDC DTCs which are in confirmed state Check if there are any 3in1 combo - DCDC DTCs in confirmed or Memorized state Refer 3in1 combo DTC Troubleshooting document for details - Circuit schematic diagram: NA Component Location & Image: - NA
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