Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 38 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 P00BC-00: Mass or Volume Air Flow "A" Circuit Range/Performance - Air Flow Too Low Overview: Code Cause Effect on Vehicle Fault Code: P00BC-00 1. AMF Sensor reading incorrect values 2. Aging of AMF sensor 3. Oil deposition on AMF sensor 4. Airpath Leakage (TC to intake manifold hoses) 5. Choked air filter 6. EGR / exhaust leakage 7. Wrong Orientation of the AMF sensor 8. Improper ECU connection 9. Wiring harness damage or loose connection 10. Defective AMF sensor 11. ECU terminal pin bend/damage 1.MIL Lamp On 2.Reduced Vehicle Performance 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 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 sensor connector pins 3, 1, 2, 4 and ECU pins B45, B47, B17, B65 respectively. Check the End to end continuity using multi-meter
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