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OSPREY- Application
DTC Troubleshooting Data
Version: 4.0
Date: 10-02-2017
Prepared by: Mithipati Prasad
Checked by: G S Raju / Senthilnathan S
Page: 39 of 654
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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.
P083F: Clutch Coherence Fault
Overview:
DTC Description as per ISO standard
Clutch Pedal Switch "A"/"B" Correlation
ECU Pin Number
17, 50
Customer Symptom
Drivability (During Taking Off on gradients & Gargling Noise of Turbo lag)
will get effected as Clutch Pedal top Travel input is not available to EMS
Fault Effects (On Vehicle)
Drivability (During Taking Off on gradients & Gargling Noise of Turbo lag)
will get effected as Clutch Pedal top Travel input is not available to EMS
Lamp Status (If Any)
-
Fault Detection Condition
This fault gets logged when EMS receives the Clutch Bottom travel input
but not the Clutch Top Travel input.
Normal Operating Condition
Check the Clutch Top Travel switch state & Bottom Travel switch stats in
Diagnostic tool, which should vary as per the pedal press.
Probable Trouble Area
Clutch Sensor, ECU, Grounding points, Wiring harness.
Healing Condition
Ignition OFF to ON
Component Details:
Clutch Sensor (Hall Effect Sensor) provides two digital inputs to EMS regarding the Clutch Pedal Top travel (40 % Pedal
press) & Clutch pedal bottom travel (90% pedal press). Clutch pedal top travel input will be used for Vehicle drivability
improvement and Clutch pedal bottom travel input will be used for starter motor control, Current gear display and Gear
Shift Indication 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:
a) When pedal is not pressed
–
Clutch Engaged
b) When Pedal is partially pressed
–
Clutch Disengaged
c) When the pedal is fully pressed
–
Clutch Fully disengaged