Q501 4 Cylinder MT Application DTC Troubleshooting Data Version: 0.1 Date: 21-Sep-2018 Prepared By: Mithi Prasad, Sarang Kulkarni, Manish Gupta Checked By: Yogesh Jadhav Approved By: Satish Kumar P Page: 549 of 1052 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. P3011-54: Variant coding not performed Overview: DTC Description (User Friendly) Variant coding not performed ECU Pin Number - Customer Symptom Vehicle will not function as per design intent. Fault Effects (On Vehicle) Vehicle will not function as per design intent. Lamp Status (If Any) CE Lamp, MIL OFF Fault Detection Condition (Root cause) This fault gets logged when the Variant Coding activity is failed at EOL station due to incorrect writing of variant code. Variant Configuration Not performed. Normal Operating Condition Variant Coding activity will be successful at TML EOL Probable Trouble Area Manual error in entering variant code, EOL tool faulty, EMS ecu. Component Details: NA Preliminary Checks: 1. Check whether the customer voice / view about the issue is matching with the fault effects mentioned in above Table. If yes, go ahead with next steps. If not, check for other DTC’s presence. 2. Check whether other customers report similar complaints earlier. If yes, perform the preliminary checks with respect to earlier issue closure. 3. Check whether Variant code is written as per the Specification provided to EOL team. Trouble Shooting: Step Checks IF YES IF NO 1. Is variant code being written into EMS ECU is aligned to the Vehicle variant? Go to step 2 Write the variant code for the Vehicle variant correctly. 2. Check whether the EOL tool is sending the information properly to EMS ecu? Go to step 3 Replace EOL tool 3. If the fault still persists? Replace EMS ECU Repeat the above procedure for fault Confirmation.
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