Ch. 26

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P24-13 Slowly move the throttle from idle speed to
wide open and back to idle speed position. For best
results, this test should be performed by depressing the
accelerator pedal. This puts the same forces on the
sensor as occurs during normal driving.
lr=*
P24-14 The high reading for this sensor was 4.053
volts.
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rc
?24-,5 Pushing the MIN/MAX burton shows the
minimum voltage the meter recorded during the test
(0.3ee v).
P24*16 A Snap-On Vantage graphing multimeter or
digital storage oscilloscope can also be used to rest a
TP sensor. To test the sensor using the Snap-On
Vantage, select TP sensor from the menu.
?24-17 The Vantage has a built-in database that can be
accessed to show connector position and wire coror
info.mation.
P24-18 After attaching the meter leads to the signal
wire and ground (ignition key on, engine off),the graphing
multimeter shows the waveform of the voltage signal as
the throttle is depressed, released, and depressed again.
These are normal for a TP sensor. A fault would show as
a vertical line or dip in the waveform.
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