Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1.0 Date: 30/11/2019 Author: ERC Page 272 of 610 Copyright by TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without our consent P0651-00: Sensor Reference Voltage "B" Circuit/Open - No Sub Type Information Overview: Code Cause Effect on Vehicle Fault Code: P0651-00 Boost pressure sensor, Accelerator pedal position sensor, Cruise switch, Wiring harness & EMS ECU 1. MIL lamp ON 2. Smoky Exhaust 3. Engine hesitation and noisy 4. Power loss Component Details: The EMS ECU is an electronic control unit that controls a series of actuators on an internal combustion engine to ensure optimal engine performance. It does this by reading values from a multitude of sensors within the engine bay, interacting with the other ECU on CAN (TCU, ABS/ESP, IPC, TOD, DCS, BCM etc.), interpreting the data using multidimensional performance maps (called lookup tables) and adjusting the engine actuators accordingly There are three regulated power supplies from EMS ECU which provide input power supply to the sensors interface to EMS ECU in the vehicle. Trouble Shooting: Step Checks If Yes If No 1 Check if any of the DTCs P06A7-1C & P0652-98 are present? Follow the rectification procedure of individual DTCs Follow the steps again for reconfirmation Circuit Schematic Diagram:
RkJQdWJsaXNoZXIy MTIwNTUz