Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 290 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 any other faults like AMF faults, ECU faults, electrical faults related to Intake throttle etc are present. If present, address it first. Trouble Shooting Steps: Sr. No. Steps Specifications Step 1 Check throttle position sensor electrically for open or short in ECU pins – A42, A60, A66, A87 - Step 2 Check wiring harness for any damage (Burnt/cut wire or connector). Check the ECU terminal pin for any damage or bend - Step 3 Check connection at throttle position sensor. Disconnect and reconnect properly - Step 4 Clean Water or Corrosion in connector or sensor - Step 5 Perform Throttle learning routine service using TML service tool Coolant temperature > 80 deg, C, Battery voltage > 12 V, No electrical faults related to throttle should be present Step 6 Using service tool perform actuator test in key on condition (Engine not running). Demand 0% for 5 secs and 100% for 5 secs to see whether throttle feedback is matching the throttle demand (a little delay is accepted). If it is not matching, there is still issue with throttle valve - Step 7 If the problem persists, replace the intake throttle - Associated Parameters: Parameter Label Description DID Monitoring Throttle desired position Demanded Throttle position FEA6 Both should match with error less than 2% Throttle Feedback position Throttle Feedback position FEA8 First close position counts learnt THRTL First learnt throttle close position counts FEA9 Ranges from 80 to 150 First open position counts learnt THRTL First learnt throttle open position counts FEAA Ranges from 750 to 850 Current Throttle close position counts learnt Current Throttle close position counts learnt FEAB Ranges from 80 to 150 Current Throttle open position counts learnt Current Throttle open position counts learnt FEAC Ranges from 750 to 850 Verification condition:
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