TIAGO TIGOR BSVI - SERVICE MANUAL - DTC 24-12-2021

TATA BSVI Gasoline Program – EMS ECU Bosch DTC Troubleshooting Service Manual Version: 1.2 Date: 18-12-2019 Prepared By: Sunita Mandlik Checked By: Yeshwant Jadhav Approved By: Satish Kumar Document Part No: 2921 02 xxx xxxx Page: 357 of 1498 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. Boost PressureSensor: Boost Pressure Sensor is used to measure the pressure of the Intake Air @ Intake Manifold (After Turbo). The piezo- resistive pressure Sensor element and a suitable Circuitry for signalamplification are integrated on a silicon chip. Themeasured pressure operates from above to the active side of the silicon diaphragm. Transfer Function of Pressure Sensor: Uout= (c1*pabs+c0).US Where, Uout = signal output voltage in V US = supply voltage in V pabs = absolute pressure in kPa c0 = -0.1/105 c1 = 0.85/105 kPa-1 Characteristics of Pressure Sensor: Characteristics of Pressure Sensor with Supply Voltage of 5 Volts Stand Alone Diagnosis of Sensor: 1. Give 5V Power Supply to the Sensor Supply pin and Ground to the Sensor Ground Pin 2. Keep the Sensor in a pressurized environment of 50 bar. 3. Measure the Voltage between the Sensor pressure Signal Pin and Ground, it should be 2.1 Volts approx. Diagnosis: Use multimeter to check for signal voltage at pin1 and pin3. Supply voltage :- 5V DC. Signal Voltage : 0.4 V @ 10 kpa (absolute) 4.65 V @ 115 kpa (absolute)