TATA BSVI Gasoline_Bifuel Program – EMS ECU Bosch DTC Troubleshooting Service Manual Version: 1.9 Date: 24-01-2022 Prepared By: Veer K. Singh / Prudhvi B Varma Checked By: Yeshwant Jadhav Approved By: Sanjeev M. Document Part No: 2921 02 xxx xxxx Page: 633 of 1692 Copyright © TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. P0563-17: System Voltage High-Circuit Voltage Above Threshold Overview: ISO Code P0563-17 Customer Symptom Vehicle performance will get affected.ECU Disconnection- May lead to vehicle stall Fault Effects (On Vehicle) Vehicle start and battery Charging while driving may get affected Lamp Status (If Any) CE lamp ON after 3 drive cycles Fault Detection Condition This fault gets logged if EMS ECU receives Battery voltage more than a calibrated threshold (14.5 Volts) Normal Operating Condition Alternator and Rectifiers Functioning properly, Healthy Battery Probable Trouble Area Load Dump, Alternators / Rectifiers Faulty, sulphated terminals. Healing Condition Engine Running and after 1 drive cycles of fault rectification Fault permanent deletion 1. Clear DTC Command form Scan tool 2. Stack Over Flow .3. 40 warm up cycles. 4.ECU flashing 5. ECU Power-Fail Component Details: Lead Acid Battery provides supply voltage to all vehicle electrical and electro mechanical components Preliminary Checks: 1. Sulphated Battery terminals. 2. Load Dump 3. Alternator / Rectifiers faulty
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