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: 809 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. P0697-1C: Output Voltage of the Sensor 3 Supply is Out of its Specified Range-Circuit Voltage out of Range Overview: ISO Code P0697-1C Customer Symptom Fuel Consumption Increases Fault Effects (On Vehicle) Fuel Cut OFF will be deactivated, Fuel Consumption Increases Lamp Status (If Any) CE lamp ON after 1 drive cycle Fault Detection Condition This fault gets logged if the Sensor Reference Supply pins of EMS ECU are short Circuited to Battery / Ground OR Open Circuited Normal Operating Condition Healthy Supply Voltage to Sensors Probable Trouble Area Wiring Harness Connections, EMS ECU Healing Condition Ignition ON and after 1 driving cycles of fault rectification 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 has two Internal 5 Volts power supplies. Power Supply 1 will provide input voltage to a group of Sensors-A (Accelerator pedal Sensor 1, AC Refrigerant pressure Sensor, TMAP Sensor) and Power Supply 2 will give input voltage to another group of Sensors (Boost Pressure Sensor, Throttle Position Sensor, Accelerator pedal Sensor 2) Preliminary Checks: 1) Loose/ Damaged Connections between any Sensor of Sensor Group A (Acc. Pedal Sensor 1 / AC Refrigerant pressure Sensor / TMAP Sensor) and EMS ECU. 2) Check for back out of pins at any Sensor connector of Sensor Group A (Acc. Pedal Sensor 1 / AC Refrigerant pressure Sensor / TMAP Sensor) and ECU connector. 3) Check for damage of pins at any Sensor connector of Sensor Group A (Acc. Pedal Sensor 1 / AC Refrigerant pressure Sensor / TMAP Sensor) and ECU connector. 4) Check the continuity from all Sensors of Sensor Group A (Acc. Pedal Sensor 1 / AC Refrigerant pressure Sensor / TMAP Sensor) connector pins totheir respective EMS ECU pins.