Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1.0 Date: 30/11/2019 Author: ERC Page 247 of 610 Copyright by TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without our consent P02E9-12 Diesel Intake Air Flow Position Sensor Circuit High Overview: Code Cause Effect on Vehicle Fault Code: P02E9-12 1. Short to power in the signal circuit to the Diesel Intake Air Flow Position Sensor 2. possible Failed Diesel Intake Air Flow Position Sensor 3. possible Failed ECU - unlikely 1. Malfunction Indicator Light On 2. Possible low idle speed only 3. No EGR System operation 4. No Regeneration of the diesel particulate filter to burn off the soot build up Trouble Shooting Steps: Sr. No. Steps Rectification Step 1 Check connection to the sensor Physical check Step 2 Check functionality of the Diesel Intake Air Flow Position Sensor Functionality Step 3 Check the ECU to sensor continuity Continuity Step 4 If the problem persists, replace the sensor - Circuit Schematic Diagram: From COC, E & E
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