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SEF351V
Component Description
NGEC0451
The power steering oil pressure switch is attached to the power
steering high-pressure tube and detects a power steering load.
When a power steering load is detected, it signals the ECM. The
ECM adjusts the IACV-AAC valve to increase the idle speed and
adjust for the increased load.
CONSULT-II Reference Value in Data Monitor
Mode
NGEC0452
Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
PW/ST SIGNAL
쐌 Engine: After warming up, idle
the engine
Steering wheel in neutral position
(forward direction)
OFF
The steering wheel is fully turned ON
ECM Terminals and Reference Value
NGEC0453
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
39 GY/R
Power steering oil pressure
switch
[Engine is running]
쐌 Steering wheel is fully turned
Approximately 0V
[Engine is running]
쐌 Steering wheel is not turned
Approximately 5V
POWER STEERING OIL PRESSURE SWITCH
KA24DE
Component Description
EC-584
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