UNI-T UT105

Model UT105: OPERATING MANUAL
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Measurement Operation(29)
4.Absolute Pressure (MAP) and Baro Sensor (see
figure 19)
The MAP sensor is used to change a pressure signal
into a DC voltage or frequency one. All GM, Chrysler,
Honda and Toyota use DC voltage type MAP sensors,
while Ford uses frequency type MAP sensors. Refer to
relevant manuals for other automotive manufacturers.
Testing Procedure:
(1) Connect the DC voltage type MAP sensor in the DC
voltage testing method and set the rotary switch of
the meter to 20 VDC.
(2) Connect the frequency type MAP sensor in the RPM
x10 testing method and set the meter to the number
of cylinders in the automobile.