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: 504 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. P0341-78: Camshaft Position Sensor “A” Circuit Range/Performance – Alignment or Adjustment Incorrect Overview: ISO Code P0341-78 Customer Symptom CE Lamp turns ON Fault Effects (On Vehicle) Emission will get affected It will not effect drivability. Lamp Status (If Any) CE lamp ON after 3 drive cycle Fault Detection Condition This fault gets logged when there is a Misalignment of Camshaft Normal Operating Condition Cam shaft Sensor sends plausible signal to EMS ecu Probable Trouble Area Wiring Harness connections, Cam Sensor, Cam Sensor mounting, Cam shaft damage Healing Condition After 3 drive cycles Fault present 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: A typical Hall Effect Sensor has three wires or terminals: one for ground, one for supply or reference voltage and one for the output signal. To produce an output signal, a Hall Effect Sensor must be supplied with a reference voltage. When a metal/wheel passes through the air gap between the magnetic field (Magnet) and silicon chip (CAM Sensor), it blocks the magnetic field and causes the chip’s output voltage to suddenly drop to zero else the chip's output voltage is 4.7 Volts. Preliminary Checks: 1. Loose/ Damaged Connections between Sensor and EMS ecu. 2. Check for back out of pins at both Sensor connector and ECU connector. 3. Check for damage of pins at both Sensor connector and ECU connector. 4. Check the continuity from Sensor connector pins to the ECU pins. 5. Physical damage to Cam target wheel. 6. Improper Air Gap between Sensor and Cam target wheel.