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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: 916 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.
Also check continuity from low speed fan Relay pin
1
to
GND.
the circuit
schematic.
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 K037 is short circuited to
ground
Rectify the wiring
harness connections
as per the schematic
Go to next step
6
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 Low Speed fan Relay. Test shall be successful.
Circuit Schematic: