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: 1445 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. harness connections as per the Circuit schematic 4. Is 5V supply at Blower position Resistor Control Module pin ‘E’. Go to Step 5 Establish continuity by rectifying harness connections as per the Circuit schematic 5. Are there any pins damaged at EMS ECU Connector Replace the connector or wiring harness Go to step 6 6. Are there any pins backed out from the EMS ECU Connector Rectify/Replace Connectors Go to Step 7 7. Is ECU Pin 130 Open Repair the harness as per the schematic Go to Step 8 8. Fault Still Persists? Fault still persists then Replace EMS ECU Follow the steps again for reconfirmation Detailed Description: This document explains the strategy that micro controller to deliver the PWM output according to the Blower position requested by the user through the selection switch.
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