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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: 429 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.
Step Checks
IF YES
IF NO
1.
Is there any rust/oxidization observed on Sensor Terminals.
Clean the Rust or
repair or replace
Go to Step 2.
2.
The error is checked only if the following conditions are
satisfied.
1. Starter relay activation command is present for a
minimum period of 200ms.
2. when battery voltage is above certain voltage 8000 volt.
3. Engine speed is detected i.e > 0.
4. The engine running condition is used as a condition for
evaluation the DTC in case of no feedback circuitry for the
starter.
Establish continuity
by rectifying
harness
connections as per
the circuit
schematic.
Go to Step 3.
3.
Are there any pins damaged at EMS ECU Connector.
Replace the
connector or wiring
Harness.
Go to step 4.
4.
Are there any pins backed out from the EMS ECU
Connector.
Rectify/Replace
Connectors.
Go to Step 5.
5.
Is EMS pin K072, K055, K085 short circuited to
GND/Battery or
Open?
Repair the harness
as per the
schematic.
Go to Step 6.
6.
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. Check the errors at Ignition ON, engine running @ Idle & Fly-up with different vehicle speeds also.
2. If error present, then rectify the errors.
3. Confirm that there is no error logged in EMS before handing over vehicle to customer.