NEXON NEW MCE-2 DCT BS VI DTC Troubleshooting Guide Version: 1.0 Date: 16-06-2023 Author: Akash/Rahul Page:73 of 645 Copyright ©TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. 3. If the DTC persists, replace the TCU if the problem persists and flash adaption values from the old TCU on the new TCU. Clear the DTC and check if the DTC does not come back. • Disconnect Transmission side TCU connector (X-201) and check below resistance at (X-201) connector terminal Pin 10 & 20. Sump temperature (°C) Sensor resistance (Ω) Component check > 110000 open Sump temperature sensor is malfunctioning -40 to 0 105000 to 14000 ok 0 to 30 14000 to 4000 ok 30 to 50 4000 to 2000 ok 50 to 100 2000 to 470 ok 100 to 150 470 to 130 ok < 130 short ➢ Disconnect connector Transmission side 28 pole (X-201), disconnect transmission circular connector (X-111) and check below resistance at transmission circular connector pins. Measure Resistance (Ω) Component check PIN 13 (T_TEMP1 (X-111,13) to transmission housing > 500k ok Internal wiring harness Pin 14 (T_TEMP_G(ND (X-111,14) to transmission housing > 500k ok Internal wiring harness ➢ Remove vehicle connector from TCU, Disconnect transmission circular connector and check below resistance at transmission circular connector Measure Resistance (Ω) Component check Pin 13 (T_TEMP_1 (X-111,13) to Pin 14 T_TEMP_GND (X-111,14) 5160 +/- 500 ok TCU and external wiring harness Pin 13 (T_TEMP_1 (X-111,13) to transmission housing > 500k ok TCU and external wiring harness
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