Q501 4 Cylinder MT Application DTC Troubleshooting Data Version: 0.1 Date: 21-Sep-2018 Prepared By: Mithi Prasad, Sarang Kulkarni, Manish Gupta Checked By: Yogesh Jadhav Approved By: Satish Kumar P Page: 870 of 1052 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 – Upstream main relay battery voltage above threshold Overview: DTC Description (User Friendly) Upstream main relay battery voltage above threshold ECU Pin Number K01,K03,K05,K75 Customer Symptom CEL ON. Vehicle will be non-functional. Fault Effects (On Vehicle) Vehicle non-functional Lamp Status (If Any) MIL OFF, CEL ON Fault Detection Condition (Root cause) EMS ECU receives more than 18 V supply voltage from Battery. Normal Operating Condition EMS ECU input power supply voltage in range of 9 – 18 V Probable Trouble Area Load dump, Jump start with 24 V battery Healing Condition Rectify the error Clear through diagnostic tool Ignition OFF & ON Component Details: Lead Acid Battery provides supply voltage to all vehicle electrical and electro mechanical components. Preliminary Checks: 1. Check whether the customer voice / view about the issue is matching with the fault effects mentioned above. If yes, go ahead with next steps. If not, check for other DTC’s presence. 2. Check whether similar complaints are earlier reported. If yes, perform the preliminary checks with respect to earlier issue closure. 3. Check whether Load dump happened in vehicle. 4. Check whether the Vehicle is jump started with 24 V battery 5. Check whether vehicle is fitted with higher voltage rated battery 6. Is Alternator warning lamp (Battery charge Lamp) in cluster ON? Then check for alternator related issues. 7. Check whether the Alternator and its voltage regulator are working fine. If not perform necessary repairs. Trouble Shooting: Step Checks IF YES IF NO 1. Check for any mal-functions in Alternator / Voltage Regulator of Alternator / Rectifiers of Alternator Perform necessary repairs Go to Next Step 2 Check whether the Vehicle is jump started with higher capacity battery Convey user that these kind of practices shall not be followed. In case of any Burnt WH or failed controllers, Rectify / Replace 3 Check whether the Vehicle is fitted with Battery specified Go to Next step Convey User that
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