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: 853 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. P2091-12: “B” Camshaft Position Actuator Control Circuit High – Circuit Short to Battery Overview: ISO Code P2091-12 Customer Symptom MIL getting ON. Fault Effects (On Vehicle) It will not affect drive ability. Emission will get affected. Lamp Status (If Any) MIL ON after 1 drive cycle Fault Detection Condition This fault gets logged when (VVT EX)Camshaft Position Actuator Circuit- Circuit Short to Battery Normal Operating Condition Healthy Wiring Harness connections between VVT EX and EMS ECU Probable Trouble Area Wiring Harness Connections, Sensor Healing Condition After 3 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: The variable camshaft timing oil control solenoid is attached to camshaft and is hydraulically operated in order to change the angle of the camshaft relative to crankshaft position. The variable camshaft timing oil control solenoid is controlled by the control module. The control module sends a pulse width modulated 12 volt signal to a variable camshaft timing oil control solenoid. The solenoid controls the amount of engine oil flow