NEXON NEW MCE-2 DCT BS VI DTC Troubleshooting Guide Version: 1.0 Date: 16-06-2023 Author: Akash/Rahul Page:599 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. 182.U0304-00Software incompatible with gear shift module A Over view : ISO Code U0304-00 Customer Symptom • Shifting will not happen due to old GSM in vehicle • Transmission Fault Lamp ON Fault Effects (On Vehicle) • D,R,N,P shift will not happen due to old GSM software • Transmission Fault Lamp ON Lamp Status (If Any) Transmission Fault Lamp ON (Service indication 0x1) Fault Detection Condition GSL hardware and SW number mismatching with respect to the expected values, FFT = 0ms Normal Operating Condition All gear shift will be possible Probable Trouble Area 1.Mono stable shifter module Healing Condition The reaction is cleared at SW restart if the detection is FALSE for more than 0 ms Preliminary Checks: 1. Check for correct GSM hardware and software version number. Trouble Shooting:- Step Checks IF YES IF NO 1. Check for correct software and hardware version of GSM Go to step 2 2 Replace it with correct Hardware and software version of MSS Clear the DTC and check if the DTC does not come back. DTC’s confirmation:- After rectification, clear all DTC’s and ensure the following points by referring TCU parameters using TML diagnostic tool before handing over to customer. • Ensure no DTC is active and Transmission Fault Lamp is OFF. 183.U2122-1C Gear Lever supply voltage defect Over view : ISO Code U2122-1C Customer Symptom • Critical malfunction • Powertrain is opened • Power loss triggered when standing still Fault Effects (On Vehicle) • D,R,N,P shift will not happen due to old GSM Power supply over voltage/Under voltage • Transmission Fault Lamp ON Lamp Status (If Any) Transmission Fault Lamp ON (Service indication 0x1) Fault Detection Condition Voltage out of range for > 1100ms
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