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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: 136 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 Step 2
2.
Is there wiring harness electrical continuity between ECU
pins 37,78, 16 &Accelerator pedal Sensor connector pins
4,2,3.
Go to Step 3
Establish continuity
by rectifying
harness
connections as per
the circuit
schematic
3. Are there any pins damaged at Sensor/EMS ECU
Connector
Replace the
connector or wiring
harness
Go to step 4
4
Are there any pins backed out from the Sensor/EMS ECU
Connector
Rectify/Replace
Connectors
Go to Step 5
5
Is Sensor Supply Pin 78 Short circuited to Battery/GND or
open?
Repair the harness
as per the schematic Go to step 6
6
Is Sensor Signal Pin 37/38 Short circuited to battery/GND
or open circuited?
Repair the harness
as per the schematic Go to Step 7
7
Is sensor physically Damaged
Replace Sensor
Go to Step 8
8
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