DIAGNOSTIC MANUAL MAN-00201
QUANTO
EMS
SEP 2012/Rev 1
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
© 2012 Mahindra & Mahindra Ltd.
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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 P1128/P1126 is
present?
Is P1128/P1126
present?
Intermittent problem exists
Refer the intermittent problem
inspection procedure
STEP 2
Is the thermostat
properly fitted ?
Ignition ON
Check and ensure the coolant
temperature sensor is
functioning properly
Ignition OFF
Check for proper fittment of
thermostat in thermostat
housing
Fix the thermostat in its correct
positon
Clear the DTC and verify
Remove the thermostat and
check whether thermostat is
strucked in open position.
Replace the thermostat with a
new one
Clear the DTC and verify
NO
YES
NO
YES
P 1128
P1126
46