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: 1238 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. P0368-12: Camshaft Position Sensor "B" Circuit High Bank 1- Circuit Short To Battery Overview: ISO Code P0368-12 Customer Symptom MIL getting ON. Fault Effects (On Vehicle) If error occurs in Idle-vehicle will continue to run If error occurs during driving-vehicle will continue to run without any restrictions If error occurs before starting-vehicle will start with more start time Lamp Status (If Any) MIL ON after 3 drive cycle Fault Detection Condition This fault gets logged when Camshaft Position sensorCircuit Short to Battery Normal Operating Condition Healthy Wiring Harness connections between Camshaft Position sensor and EMS ECU Probable Trouble Area Wiring Harness Connections, Sensor Healing Condition After 3 drive cycles Fault permanent deletion 1. Scan tool Service 14. 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 Actuator and EMS ECU. 2) Check for back out of pins at both Actuator connector and ECU connector. 3) Check for damage of pins at both Actuator connector and ECU connector. 4) Check the continuity from Actuator connector pins to the ECU pins.
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