C14" Tp Sensor Circuit Malfunction - Suzuki AN650 2002 Service Manual

"C14" TP SENSOR CIRCUIT MALFUNCTION

DETECTED CONDITION
Output voltage low or high.
0.20 V Sensor voltage
(
without the above range.
INSPECTION
• Remove the maintenance lid. (
1
Turn the ignition switch OFF.
Check the TP sensor coupler for loose or poor contacts.
If OK, then measure the TP sensor input voltage.
Disconnect the TP sensor coupler
Turn the ignition switch ON.
Measure the voltage at the Red wire and ground.
If OK, then measure the voltage at the Red wire and B/Br
; wire.
TP sensor input voltage: 4.5 – 5.5 V
z
09900-25008: Multi circuit tester
u
Tester knob indication: Voltage (
Yes
2
Turn the ignition switch OFF.
Disconnect the TP sensor coupler.
Check the continuity between Yellow wire and ground.
;
TP sensor continuity: ∞ Ω (Infinity)
If OK, then measure the TP sensor resistance at the
coupler (between Yellow and Gr or R wires).
;
Turn the throttle grip and measure the resistance.
TP sensor resistance
Throttle valve is closed : Approx. 1.1 kΩ
Throttle valve is opened : Approx. 4.2 kΩ
z
09900-25008: Multi circuit tester
t
Tester knob indication: Resistance (Ω)
Yes
<
4.80 V )
:
9-13)
.
+ -
Red – Ground
+ -
(
Red – B/Br
-
)
Loose or poor contacts on
No
the ECM coupler.
Open or short circuit in the
Red wire or B/Br wire.
(Yellow wire – Ground)
No
Reset the TP sensor
position correctly.
Replace the TP sensor
with a new one.
POSSIBLE CAUSE
• TP sensor maladjusted.
• TP sensor circuit open or short.
• TP sensor malfunction.
• ECM malfunction.
1
)
1
V
1
V
2
Ω
FI SYSTEM/ CVT SYSTEM 6-31
Red
Ground
B/Br
Red
Ω