Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 35 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 9. Wiring harness damage or loose connection 10. Defective AMF sensor 11. ECU terminal pin bend/damage Lamp status: Check Engine Lamp off Malfunction Indicator Lamp on Checkpoints: 1. Check Battery Voltage at Ignition off (Nominal Range 11.5V ~ 12.8V) 2. Check for any other live electrical faults. If present, address it first. Trouble Shooting Steps: Sr. No. Steps Specifications Step 1 Check whether the AMF sensor connector is connected properly - Step 2 Check whether the ECU connector is connected properly - Step 3 Check for any damage or bend in ECU terminal pin - Step 4 Check for continuity between AMF sensor connector pins 3, 1, 2, 4 and ECU pins B45, B47, B17, B65 respectively. Check the End to end continuity using multimeter Step 5 Check the orientation of the AMF sensor. The arrow mark on the sensor should be in the direction of air flow. - Step 6 Check for oil deposits or any other foreign particles deposition the AMF sensor - Step 7 Check for intake airpath leakage. If any leakage is observed, arrest it. - Step 8 Check the AMF sensor physically for any damage. If found damaged, replace the AMF sensor - Step 9 If the problem persists, replace the sensor - Associated Parameters: Parameter Label Description DID Monitoring Intake port air flow Air flow read by sensor FE2D
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