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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: 863 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.
P0831-11: Clutch Pedal Switch “A” Circuit Low– Circuit Short to Ground
Overview:
ISO Code
P0831-11
Customer Symptom
No Reaction
Fault Effects (On Vehicle)
No Reaction
Lamp Status (If Any)
CE Lamp ON after 1 drive cycle
Fault Detection Condition
This fault gets logged only when Vehicle is driven in different
gears and EMS ECU finds Dual Clutch’s Top travel Input(Pin
118) shorted to always give High signal.
Normal Operating Condition
Appropriate signal from Top Travel Input pin 118
Probable Trouble Area
Wiring harness Connections between Clutch Switches and
EMS ECU, Improper Clutch Switch Setting
Healing Condition
After 1 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:
Clutch switches are normally closed switches, which are assembled on the Clutch pedal and get Opened when the
clutch pedal is pressed. Clutch Switches are set in such a way that one switch will get closed at 10% pedal press and
other switch will get closed at 90% pedal press.
Preliminary Checks:
1) Loose/ Damaged Connections between Clutch Switch pins and EMS ECU.
2) Check for back out of pins at ECU connector.
3) Check for damage of pins at ECU connector.
4) Check for damage of Clutch switch connector.