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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: 521 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.
Check water in fuel sensor connector is connected to the
sensor or not?
Go to step 2
Connect the WIF
sensor connector to
sensor.
2.
Is the water separator in the fuel filter filled with water?
Drain the water from
the water separator
of fuel filter
Go to Next step
3. Check whether the fuel filter is clogged or damaged
Rectify / replace the
fuel filter
Go to Next step
4.
Check whether EMS ECU pin 74 shorted to Ground or
Open circuited / shorted to battery supply?
Rectify the wiring
harness connections
as per the schematic
Go to Next step
5
Are there any pins damaged at EMS ECU Connector
Replace the
connector or wiring
harness
Go to step 6
6
Are there any pins backed out from the EMS ECU
Connector
Rectify/Replace
Connectors
Go to Step 7
7
Is WIF sensor switch connector damaged or pins got
backed out.
Rectify/Replace
Connectors
Go to step 8
8
If fault still persists,
then replace sensor
and if fault still
persists then call
hotline
Follow the above
procedure again for
reconfirmation
DTC’s confirmation (checks before handing over vehicle to customer):-
1. Drain Sedimenter contents in a bowl and check for water presence in diesel; If water is present; drain complete
fuel from Sedimenter and fuel filter
2. Check the errors at Ignition ON, engine running @ Idle & Flyup with different vehicle speeds also
3. If error present, then rectify the errors. Confirm that there is not error logged present before handed over vehicle
to customer