918 / 4910
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: 886 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.
4
Are there any pins damaged at EMS ECU Connector
Replace the
connector or wiring
harness
Go to Next Step
5
Are there any pins backed out from the EMS ECU
Connector
Rectify/Replace
Connectors
Go to Next Step
6
Check whether the ECM pin K090 is shorted to Ground
Rectify the wiring
harness connections
Go to Next Step
7
Fault Persists.
Call Hotline
Repeat the above
steps for re-
confirmation
DTC’s confirmation:
After rectification, Test Drive the vehicle for 2 KM and ensure that no DTC’s are logged in ECM.
Perform the IO / Actuator Test for AC Relay. Test shall be successful.
Circuit Schematic:
Connector View and Information:
NA
Component Location & Image:-
Check in the Engine Compartment fuse box for the AC relay. Fuse Box Cover Image is shown below.
R18 - AC Compressor Clutch Relay