Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 685 of 834 Copyright by TATA MOTORS Ltd. This document must not be used in any w ay, such as copying and redistributing to third parties, w ithout our consent Check for back out / Damage of Pins at APM Sensor connector, EMS ECU connector. If found, perform necessary repairs. Trouble Shooting: Step Checks IF YES IF NO 1. Is there any rust/oxidization observed on Sensor Terminals Clean the Rust or repair or replace Go to Step 2 2. Is there wiring harness electrical continuity between ECUpins B59,B32,B15 &Accelerator pedal Sensor connector pins 4,2,3. Go to Step 3 Establish continuity by rectifying harness connections as per the circuit schematic 3 Is there wiring harness electrical continuity between ECUpins B60, B36, B19&Accelerator pedal Sensor connector pins 6,1,5 G to next step Establish continuity by rectifying harness connections as per the circuit schematic 4. Are there any pins damaged at Sensor/EMS ECU Connector Replace the connector or wiring harness Go to step 5 5 Are there any pins backed out from the Sensor/EMS ECU Connector Rectify/Replace Connectors Go to Step 6 6 Is Sensor Supply Pin B32/B36 Short circuited to Battery/GND or open? Repair the harness as per the schematic Go to step 7 7 Is Sensor Signal Pin B59/B60 Short circuited to battery/GND or open circuited? Repair the harness as per the schematic Go to Step 8 8 Is sensor physically Damaged Replace Sensor Go to Step 9 9 Fault Still Persists? Replace Sensor and then Fault still persists then Call Hot Line Follow the steps again for reconfirmation DTC’s confirmation (checks before handing over vehicle to customer): After rectification, ensure the following points by referring Accelerator pedal positionparameter using TML diagnostic tool before handing over to customer - Accelerator pedal is not pressed - Pedal position in diagnostic tool should be less than 5%. Accelerator pedal is fully pressed - Pedal position in diagnostic tool should be more than 95 % Drive the vehicle on road to feel the accelerator pedal response in different vehicle speed & in different gear conditions
RkJQdWJsaXNoZXIy MTIwNTUz