FI SYSTEM DIAGNOSIS 4-39
Step 2
1) Turn the ignition switch OFF.
2) Disconnect the STP sensor coupler.
3) Check the continuity between Yellow wire and ground.
%
STP sensor continuity:
∞ Ω
(Infinity)
(Yellow – Ground)
4) If OK, then measure the STP sensor resistance at the coupler
(between Yellow and Black wires).
5) Close and open the secondary throttle valve fully by turning
the actuator shaft end
1
, and measure the STP sensor resis-
tance with both STV positions.
%
STP sensor resistance
Secondary throttle valve is closed: Approx. 0.58 k
Ω
Secondary throttle valve is opened: Approx. 4.38 k
Ω
!
09900-25008: Multi circuit tester set
&
Tester knob indication: Resistance (
Ω
)
#
Is the resistance OK?
2
2
Do not use the tool for turning the STVA shaft to pre-
vent breakdown.
2
YES
Go to Step 3
NO
• Reset the STP sensor position correctly.
(
"
5-29)
• Replace the STP sensor with a new one.
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Содержание 2005 DL650K5
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