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HONDAMATIC
24-18
PROBLEM CODE 4: THROTILE
POSITION (TP) SENSOR SYSTEM
1.
TP
Sensor
Connection Inspection
Check
for
loose or
poor
contact on the
ECM
21
P
(Gray) connector.
Check for loose or poor contact on the TP sensor
3P
(Black)
connector.
Is there normal
condition?
NO
-
Loose
or poor contact on the ECM 21 P
(Gray) connector and the
TP
sensor 3P
(Black) connector
YES
- GO
TO
STEP 2.
2.
TP
Sensor
Resistance Inspection 1
Measure
the resistance
at the TP sensor termi-
nals of the sensor side.
Connection:
Black/
red
(+J
-
Green/vellow
H
Is the resistance within 4.0
-
6.0
kfl(20"CI68
"F)7
NO
- Faulty
TP
sensor, perform initial setting
procedure after
replacement
(page 24-
61
YES
- GO
TO
STEP 3.
3.
TP Sensor Resistance Inspection
2
Check that the resistance at the sensor terminals
varies with
the throttle
position while operating
the throttle lever.
Connection:
Yellow
/
black (+)
-
Green
/
vellow
H
Standard
:
FullV
close
to FullV open
0.5
to
4.0
-
6.0
kO(20°
C/
60
Q
F)
Is there normal condition
and standard
resis-
tance?
NO
- GO TO STEP 4.
YES
-
GO
TO
STEP
5.
Y/SI
GfY
Q
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