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: 978 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. 8. Check for Wiring Dis-continuity between Brake Pedal Switch & EMS ECU. If found, fix them Trouble Shooting: Step Checks IF YES IF NO 1. Check for any other faults presence related to ECU Internal power supplies / Accelerator pedal sensor / Brake Pedal Sensor. Follow rectification process for the faults, before proceeding further Go to Step 2 2 Clear the Fault and Request User to drive the Vehicle and observe his operation of Brake Pedal and Acc. Pedal. Is he pressing both pedals simultaneously. Brief him about his wrong driving style and convey him the correct driving style Go to Step 3 3 Check for electrical continuity between ECU to Accelerator Pedal sensor connector as per the circuit schematic. Continuity exists? Go to Step 3 Establish continuity by rectifying harness connections as per the circuit schematic 4 Check for electrical continuity between ECU to Brake Pedal sensor connector as per the circuit schematic. Continuity exists? Go to next step Establish continuity by rectifying harness connections as per the circuit schematic 5 Are there any pins damaged at EMS ECU Connector or Accelerator Pedal Sensor / Brake pedal switch connector? Replace the connector or wiring harness Go to step 4 6 Are there any pins backed out from the EMS ECU Connector or Accelerator pedal sensor connector or Brake pedal switch connector? Rectify/Replace Connectors Go to Step 5 7 Accelerator Pedal moving freely? Go to next step Perform necessary mechanical repairs 8 Brake Pedal moving freely Go to next step Perform necessary mechanical repairs 9 Fault Persists? Call Hot line. Follow the steps again for reconfirmation DTC’s confirmation: After rectification, Test Drive the vehicle for 2 KM and ensure that no DTC’s are logged in ECM.
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