TATA BSVI Gasoline_Bifuel Program – EMS ECU Bosch DTC Troubleshooting Service Manual Version: 2.6 Date: 5-10-2023 Prepared By: Pradip Shimpi Checked By: Yeshwant Jadhav Approved By: Sanjeev M. Document Part No: 2921 02 xxx xxxx Page: 999 of 1720 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. P3005-13: Starter Relay Feedback Circuit – Circuit Open Overview: ISO Code P3005-13 Customer Symptom Vehicle start not possible. Fault Effects (On Vehicle) Crank is inhibited for 10 sec, Vehicle will not Start Lamp Status (If Any) Sil Lamp ON after 3 drive cycles Fault Detection Condition Ignition ON and Starter relay feedback pin of EMS ecu is Open Circuited Normal Operating Condition Wiring Harness connections as per Circuit schematic between EMS ecu and Starter feedback Circuit, Starter relay Fully operational. Probable Trouble Area Improper Wiring Harness Connections, Starter relay Stuck Open Healing Condition After 1 Drive cycles 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: Starter Relay-2 is a normally Open relay. It is an electrically controlled switch. By energizing the coil of the relay, its contacts get closed. Preliminary Checks: 5) Loose/ Damaged Connections between Starter relay contact pin X and EMS ecu 6) Starter Relay Faulty / Stuck Open 7) Check for back out of pins at ECU connector. 8) Check for damage of pins at ECU connector.
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