846 / 5157
Nexon Gasoline – EMS ECU Bosch
DTC Troubleshooting Manual
Version: 0.1
Date: 26-08-2017
Prepared By: Sunu S Babu/Yogesh Jadhav
Checked By: Yeshwant Jadhav
Approved By: Satish Kumar
Document Part No: 2921 02 224 A1736
Page: 842 of 1203
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.