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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: 266 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.
Check for any other faults presence related to ECU Internal
power supplies.
Follow rectification
process for the
faults, before
proceeding further
Go to Step 2
2.
Check for electrical continuity between ECU to Inlet
metering valve connector as per circuit schematic
Go to Step 3
Establish continuity
by rectifying
harness
connections as per
the circuit
schematic
3.
Are there any pins damaged at EMS ECU Connector or
AMF Sensor connector?
Replace the
connector or wiring
harness
Go to step 4
4
Are there any pins backed out from the EMS ECU
Connector or inlet metering valve connector?
Rectify/Replace
Connectors
Go to Step 5
5
Check inlet metering valve wrong assembly/fitment etc;
Any issues found?
Clean the inlet air
circuit and remove
any clogging
Go to Step 6
6
Check whether the EMS ECU pin number A06 or A07 is
open circuit
Rectify the wiring
harness.
Go to Step 7
7
Fault Still Persists?
Replace Inlet
metering valve. If
Fault still persists
then Call Hot line.
Follow the steps
again for
reconfirmation
DTC’s confirmation:
After rectification, Test Drive the vehicle for 2 KM and ensure that no DTC’s are logged in ECM.
Circuit Schematic:
EMS ECU
MPROP/IMV
07
06
01
02