Mahindra XUV 500 Diagnostic Manual page 115

DIAGNOSTIC MANUAL
STEP 2
Ignition OFF
Ensure the fan high speed relay
is fixed properly in the
connector of the engine
compartment fuse box
Remove the fan high speed
relay
Check the functioning of relay by
providing 12V to terminal 85
and ground to terminal 86
STEP 3
Ignition OFF
EMS ECU wiring harness
DISCONNECTED
Remove the fan high speed
relay
Check the resistance between
pin 86 of the fan high speed
relay seating and pin 68 of the
EMS ECU wiring harness
connector
Suspect EMS ECU malfunction
Replace EMS ECU with a new
one.
Check and verify for any new
DTC's
The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document,
are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd.,
will amount to unauthorized use and shall be liable for penalty/prosecution© 2011 Mahindra & Mahindra Ltd.
EMS
STEP 1
Connect the smart tester
Turn the ignition ON
Initialise the diagnostic tool
Record the DTC and clear
Turn ignition OFF
Turn ignition ON
Verify if P0481 is present?
YES Is P0481 present?
YES Is a clicking sound
heard?
YES Is the value < 1Ω?
MAN-00152
OCT 2011/Rev 1
NO
Intermittent problem exists
Refer the intermittent problem
inspection procedure
NO
Replace the fan high speed relay
with a new one
Clear the DTC and verify
NO
Examine the open circuit of of
fan high speed relay control wire
from EMS ECU
Ensure the holding bolts of BEC
connectors are intact
Repair/replace the wiring
harness
Clear the DTC and verify
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