Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 395 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 P02E0- A3: Diesel Intake Air Flow “A” Control Circuit/Open - High Overview: Code Cause Effect on Vehicle Fault Code: P02E0- A3 1. High voltage supply to Throttle 2. Alternator cut off circuit failure 3. ECU hardware malfunction 4. ECU terminal pin damage or bend 5. ECU connector pin backout 1.CE Lamp ON 2.Higher engine noise may be observed Lamp status: Check Engine Lamp on Malfunction Indicator Lamp off Checkpoints: 1. Check the Battery voltage at key on (Nominal range 11.5V – 12.8V) 2. Check for any battery related faults. If present, address it first. Trouble Shooting Steps: Sr. No. Steps Specifications Step 1 Check, Intake throttle connector is connected properly - Step 2 Check whether the battery terminals are connected properly and they are tight. If not proper, do the necessary repair - Step 3 Check ECU connection: 1] Key off 2] Remove the ECU 3] Connect ECU connector Properly 4] Key on and Read the faults. Check the ECU terminal pin for any damage or bend. Check the ECU connector for any pin backout - Step 4 Check the charging circuit – Alternator to battery wiring connection. In case of any problems in charging, do the necessary repair - Step 5 Check whether the battery voltage read by the multimeter is matching the battery voltage displayed in the service tool by ECU -
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