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: 629 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. P0562-16: System Voltage Low-Circuit Voltage Below Threshold Overview: ISO Code P0562-16 Customer Symptom Vehicle Start Ability will get affected.ECU Disconnection- May lead to vehicle stall Fault Effects (On Vehicle) Wiring harness may get burnt.Vehicle start and battery Charging while driving may get affected Lamp Status (If Any) Malfunction Indicator Lamp (MIL) ON after 1 drive cycle Fault Detection Condition This fault gets logged if EMS ECU receives Battery voltage less than a calibrated threshold (6 Volts) Normal Operating Condition Healthy connections between Battery and EMS ECU, Healthy battery. Probable Trouble Area Wiring Harness Connections, Sulphated Terminals of Battery, Battery Absent, Alternator / Rectifiers faulty Healing Condition Engine Running, healthy battery voltage and after 3 drive cycle 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. Loose or damaged connections between Battery and EMS ECU 2. Sulphated Battery terminals. 3. Battery not present 4. Alternator / Rectifiers faulty
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