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Nexon Gasoline – EMS ECU Bosch
DTC Troubleshooting Manual
Version: 0.1
Date: 26-08-2017
Prepared By: Sunu S Babu/Yogesh Jadhav
Checked By: Yeshwant Jadhav
Approved By: Satish Kumar
Document Part No: 2921 02 224 A1736
Page: 979 of 1203
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 dust/mud/any particle is blocking throttle valve?
Clean the Actuator
and refit it.
Go to step 2
2.
Is throttle valve stuck closed?
Rectify/replace
component
Go to step 3
3.
Are any throttle body related faults present
?
Rectify them by
following their
rectification
procedure
Go to step 4
4
Turn the ignition off and wait for 15 seconds and turn the
ignition on then recheck the fault. Fault reappears?
Replace Throttle
body/actuator
Go to step 5
5
If fault persists?
Replace EMS ECU
Follow the above
procedure for
reconfirmation
DTC’s confirmation:-
After rectification, ensure the following points by referring engine parameters using TML diagnostic tool before
handing over to customer.
Pls. perform the Throttle Actuator IO Control test. IF test is successful then the fault rectification is confirmed.