DIAGNOSTIC MANUAL
MAN-00152
EMS
OCT 2011/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
© 2011 Mahindra & Mahindra Ltd.
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P1128 - Coolant Temperature Sensor Absolute Test non plausible error
P1126 - Coolant Temperature Sensor Dynamic Test non plausible error
ABSOLUTE / DYNAMIC PLAUSIBILTY
When the engine is switched ON then the ECU detects the temperature. After that when the engine runs
then the temperature output on a time frame is detected and compared against predetermined slope
.
COMPONENT LOCATION
NORMAL
OPERATION
The coolant temperature rises to a specified temperature within a specific time
period -
absolute test
It also compares the rate of rise with a predefined rate of rise defined during
calibration-
dynamic test
DTC DETECTING
CONDITION
The coolant temperature do not rise enough within a specific time period,
The coolant temperature does not reach a warmed-up fuel control
temperature within a specific time
.
PROBABLE
CAUSES
Thermostat removed
Thermostat malfunctioning
LAMP
STATUS
No lamp indication
DTC REACTION
No reaction
HEALING
CONDITION
Self healing
Thermostat