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Q501 4 Cylinder MT Application
DTC Troubleshooting Data
Version: 0.1
Date: 21-Sep-2018
Prepared By: Mithi Prasad, Sarang Kulkarni, Manish Gupta
Checked By: Yogesh Jadhav
Approved By: Satish Kumar P
Page: 366 of 1052
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.
Adequate fuel available in Tank?
Go to Next Step
Refuel the vehicle
and try to crank
2. Is there any air entry in the low pressure fuel line?
Clear the same
Go to Next Step
3. Is fuel filter clogged?
Rectify / Replace
Fuel filter
Go to Next Step
4
Are there any leakages in the High Pressure fuel line?
Rectify the leakages Go to Next Step
5
Check the connector of IMV fitted properly for proper
Functionality of IMV. Is the fitment proper?
Reconnect the
Connector.
Go to Next Step
6
Check for IMV related faults (P0251, P0252, P0253,P0254)
If found refer
rectification process
for IMV fault
Go to Next Step
7
Check for Rail pressure (HP) sensor faults (P0192, P0193)
if present uses the
rectification process
of P0192; P0193
fault
Go to Next Step
8
Are there any pins backed out from the EMS ECU
Connector? Check ECU pins and connector if found faulty
Rectify/Replace
Connectors
Go to Next Step
9
Check the Injectors for mechanical damage
Rectify / Replace
Injectors
Go to Next Step
10 Check HP circuit whether its faulty or not
if problem identified
refer HP circuit
check and
rectification
procedure
Go to Next Step
11 Check whether the HP pump is sucking fuel from Fuel Tank Go to Next Step
Perform necessary
repairs
12
Perform the leak detection test for leakages? Is Test result
Negative
Perform necessary
repairs to arrest
leakages
Go to Next step
13 Fault Still Persists?
Call the Hot line
Follow the steps
again for
reconfirmation
DTC’s confirmation:
•
Check the errors at Ignition ON, engine running @ Idle & Fly-up with different vehicle speeds also
•
If error present, then rectify the errors. Confirm that there is not error logged present before handed over
•
vehicle to customer.