Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 74 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 P1563-00- Fuel Injector Supply Voltage Circuit High Overview: Code Cause Effect on Vehicle Fault Code: P1563-00 1. ECU reads high injector supply voltage 2. Battery voltage is high due to issue in charging circuit 3. Faulty ECU 1.CE Lamp ON 2. Increased engine noise and vibration. 3. Reduced Vehicle Performance 4. Disabled drive mode option Lamp status: Check Engine Lamp on Malfunction Indicator Lamp off Checkpoints: 1. Check Battery Voltage at key on (min 11.5 V) Trouble Shooting Steps: Sr. No. Steps Specifications Step 1 Check the Battery voltage with the ignition switch on. If the voltage is too low, then recharge the battery Nominal range - 11.5 ~ 12.8V Step 2 Check the battery charging circuit – Alternator to battery wiring connections. If found faulty, do the necessary repair Use multimeter for continuity and voltage check Step 3 In engine running condition remove one of the injector connectors and check voltage across it (slight fluctuation will be there but note down the highest value)and if ECU value is higher than the measured value then replace ECU. Injector fault may appear while disconnecting the injector connector. Clear the fault after reconnecting it. Associated Parameters: Parameter Label Description DID Monitoring
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