Nissan Murano: System / Air Conditioning Cut Control
System Description
SYSTEM DIAGRAM

*: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned OFF.
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When the accelerator pedal is fully depressed.
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When cranking the engine.
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At high engine speeds.
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When the engine coolant temperature becomes excessively high.
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When operating power steering during low engine speed or low Nissan Murano vehicle speed.
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When engine speed is excessively low.
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When refrigerant pressure is excessively low or high.
System Description
SYSTEM DIAGRAM*: ECM determines the start signal status by the signals of engine speed and battery voltage.SYSTEM DESCRIPTIONIgnition order: 1 - 2 - 3 - 4 - 5 - 6The ignition timing is controlled by the ECM to maintain the best air-fuel ratio for every running condition of the engine...
System Description
SYSTEM DIAGRAMBASIC ASCD SYSTEMRefer to Owner's Manual for ASCD operating instructions.Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed without depressing accelerator pedal...
Other information:
Description
ECM input/output valve when the engine control system operates normally.NOTE:
The SP value is indicated when “DISPLAY TYPE” is “Line Graph”.
When the indicated value of “DATA MONITOR” mode is within the SP value, the engine control system is confirmed OK...
Diagnosis Procedure
CHECK FRONT DOOR SWITCH
Check (LH and RH) front door switches.
Refer to Diagnosis Procedure.
Is the inspection result normal?
YES>>
GO TO 2.
NO>>
Repair or replace the malfunctioning parts.
CONFIRM THE OPERATION
Confirm the operation again...