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SEF273X
Component Description
NHEC0532
The swirl control valve control vacuum check switch detects
vacuum signal to the swirl control valve, and sends “ON” or “OFF”
signal to the ECM.
When vacuum is supplied to the valve, the swirl control valve con-
trol vacuum check switch sends “OFF” signal to the ECM.
The swirl control valve control vacuum check switch is not used to
control the engine system, it is used for on board diagnosis.
SEF372X
CONSULT-II Reference Value in Data Monitor
Mode
NHEC0533
Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
SWL CON VC SW
I Engine speed: Idle
I Engine coolant temperature is between 15°C (59°F) to 50°C (122°F).
OFF
I Engine speed: Idle
I Engine coolant temperature is above 55°C (131°F).
ON
On Board Diagnosis Logic
NHEC0535
Malfunction is detected when the swirl control valve control vacuum
check switch remains “OFF” under specified engine conditions.
Possible Cause
NHEC0536
I Harness or connectors
(Swirl control valve control vacuum check switch circuit is
open.)
I Hoses
(Hoses are clogged or connected incorrectly.)
I Swirl control valve control solenoid valve
I Swirl control valve control vacuum check switch
DTC P1165 SWIRL CONTROL VALVE CONTROL VACUUM CHECK SWITCH
Component Description
EC-478
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