1704 / 5157
OSPREY- Application
DTC Troubleshooting Data
Version: 4.0
Date: 10-02-2017
Prepared by: Mithipati Prasad
Checked by: G S Raju / Senthilnathan S
Page: 493 of 654
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.
P0833: Clutch pedal Switch “B” (Top Travel) Circuit
Overview:
DTC Description as per ISO standard
Clutch Pedal Switch "B" Circuit
ECU Pin Number
50
Customer Symptom
No critical effect
Fault Effects (On Vehicle)
No critical effect
Lamp Status (If Any)
-
Fault Detection Condition
This fault gets logged if the EMS ecu doesn't detects any transitions in the
clutch top travel input though the vehicle speed has crossed a maximum
calibrated threshold in kmph
Normal Operating Condition
No faults related to clutch sensor inputs detected by EMS.
Probable Trouble Area
Clutch Sensor, EMS ECU, Grounding points, Wiring harness between
Clutch sensor and EMS ECU.
Healing Condition
Clear the errors, Ignition OFF to ON
Component Details:
Clutch position sensor is a hall effect based sensor which provides two digital inputs to EMS ecu. First input is top travel
input
–
which implies clutch pedal is pressed 40% another input is Clutch bottom travel input
–
which implies clutch pedal
is pressed 90%.
Clutch 40% input will be used for Vehicle drivability refinements and Clutch 90% input will be used for Vehicle start, CGD
and GSI functions.
Preliminary Checks
x
Check whether the customer voice / view about the issue is matching with the fault effects mentioned above. If
yes, go ahead with next steps. If not, check for other DTC’s presence.
x
Check whether similar complaints are earlier reported. If yes, perform the preliminary checks with respect to
earlier issue closure.
x
Check whether the clutch pedal connector is connected or not. Refit the connector tightly.
x
Check the clutch sensor gap between the Sensor Magnet and pedal as per the Sensor mounting specification and
if deviations found then perform the necessary repairs.
x
Check whether the Clutch sensor is getting power supply at its Pin 1.
x
Read the Clutch State parameter in Diagnostic tool:
j) When pedal is not pressed
–
Clutch Engaged
k) When Pedal is partially pressed
–
Clutch Disengaged
l) When the pedal is fully pressed
–
Clutch Fully disengaged