Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1.0 Date: 30/11/2019 Author: ERC Page 225 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 P268A-00: Fuel Injector Calibration Not Learned/Programmed Overview: Code Root Cause Vehicle Behavior Fault Code: P268A-00 1.Non volatile memory – I3C; MDP error 1. Engine may have abnormal noise and vibrations. MIL- OFF 2 This DTC gets logged due to I3C value for one or more Injector is not written on the ECU or incorrect CEL – ON Immo Lamp – NA Message on IC - A Component Details: The Solenoid Valve Injectors are used to inject the desired fuel quantity based on the engine operating conditions into the combustion chamber. They are mounted at the cylinder head above the combustion chamber. Checkpoints: 1. Check I3C values (Injector code) of all injectors. 2. Look for fault in SPC group Trouble Shooting Steps: Sr. No. Steps Specifications Step 1 1. Cross check I3C values of all Injector (20 digit alpha numeric value printed on the injector) against I3C value feed fed in the ECU. Step 2 2. If these two values don't match then, feed the correct I3C values (20 digit alpha numeric value printed on the injector) of mismatched injector in the ECU. Step 3 3. Key off and wait for 30 sec and key on, check for reappearance of the DTC. Step 4 4. If problem keeps repeating change the ECU. Circuit Schematic Diagram: Component Location and Image:
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