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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: 307 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 step 2
Rectify wiring
harness
connections as
per schematic
2.
Check whether the battery is healthy
Go to step 3
Repair Battery
3
Check sensor connections for rust dirt etc
Go to step 4
Follow rectification
process of
concerned sensor
if faulty.
4
Check whether the EMS ecu pin 76 is short circuited to
ground.
Go to step 5
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 step 6
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.