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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: 132 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.
Trouble Shooting:
Step Checks
IF YES
IF NO
1.
Is there any rust/oxidization observed on Sensor Terminals Clean the Rust or
repair or replace
Go to next step
2
Are there any of faults
–
P0122, P0123. P0222, P0223
present?
Rectify them by
following their
rectification
procedure
Go to Next step
3
Is there wiring harness electrical continuity between ECU
pins 37,78, 16 & Accelerator pedal Sensor connector pins
4,2,3.
Go to next step
Establish continuity
by rectifying
harness
connections as per
the circuit
schematic
4
Is there wiring harness electrical continuity between ECU
pins 38,76, 59 & Accelerator pedal Sensor connector pins
6,1 & 5.
Go to Next step
Establish continuity
by rectifying
harness
connections as per
the circuit
schematic
5
Are there any pins damaged at Sensor/EMS ECU
Connector
Replace the
connector or wiring
harness
Go to Next step
6
Are there any pins backed out from the Sensor/EMS ECU
Connector
Rectify/Replace
Connectors
Go to Next Step
7
Is Sensor Supply Pin 78 Short circuited to Battery/GND or
open?
Repair the harness
as per the schematic Go to Next Step
8
Is Sensor Signal Pin 37/38 Short circuited to battery/GND
or open circuited?
Repair the harness
as per the schematic Go to Next Step
9
Is sensor physically Damaged
Replace Sensor
Go to Next step
10 Fault Still Persists?
Replace Sensor and
then Fault still
persists then Call
Hot Line
Follow the steps
again for
reconfirmation
DTC’s confirmation (checks before handing over vehicle to customer):
After rectification, ensure the following points by referring engine parameters using TML diagnostic tool before handing
over to customer -
1. Accelerator pedal is not pressed - Pedal position in diagnostic tool should be less than 5%.
2. Accelerator pedal is fully pressed - Pedal position in diagnostic tool should be more than 95 %
3. Drive the vehicle on road to feel the accelerator pedal response in different vehicle speed & in different gear
conditions