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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: 310 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 whether the EMS ECU is receiving supply and
Ground
Go to Next Step
Rectify wiring
harness
connections as
per schematic
2.
Check whether the battery is healthy
Go to Next Step
Repair Battery
3
Check sensor connections for rust dirt etc
Go to Next Step
Follow rectification
process of
concerned sensor
if faulty.
4
Check whether the EMS ecu pin 76 is short circuited to
Battery Supply.
Go to Next Step
Follow rectification
process of
concerned sensor
if faulty
5
Check with diagnostic tool if the sensor supply voltage
lies in between 4.75 V to 5.35
Go to Next Step
Check battery
voltage also check
proper wiring
harness
6
If fault still persists
Call Hot Line
Repeat above
procedure for
reconfirmation
DTC’s confirmation (checks before handing over vehicle to customer):
x
Visually check the initial pre check at ignition ON for MIL & CEL
x
Check the errors at Ignition ON, engine running @ Idle & Fly-up with different vehicle speeds also
x
If error present, then rectify the errors. Confirm that there are no errors present in EMS before handing over
vehicle to customer.