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: 1371 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. P2227-22: Barometric Pressure Circuit Range/Performance – Signal Amplitude>Maximum Overview: ISO Code P2227-22 Customer Symptom Vehicle drivability will be affected Fault Effects (On Vehicle) Vehicle drivability will be affected Lamp Status (If Any) CE Lamp ON after 3 driving cycle Fault Detection Condition This fault gets logged when the Barometric Pressure Sensor signal is stuck to high. Normal Operating Condition Proper signal from Barometric Pressure Sensor to EMS ecu Probable Trouble Area Barometric Pressure Sensor mounted on EMS ECU 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: EMS ECU is an electronic controller which controls the Engine functionality by interfacing with various Sensors, actuators and other controllers (via CAN). Barometric Pressure Sensor is Mounted on EMS ecu, which provides the atmospheric pressure value to EMS ecu. Preliminary Checks: 1. Check whether the EMS is receiving Battery supply and Ground 2. Check whether the Battery is healthy