C14" Tp Sensor Circuit Malfunction - Suzuki DL1000 Service Manual

4-36 FI SYSTEM

"C14" TP SENSOR CIRCUIT MALFUNCTION

DETECTED CONDITION
Signal voltage low or high.
Difference between actual throttle opening and open-
ing calculated by ECM in larger than specified value.
0.10 V Sensor voltage
(
without the above range.
INSPECTION
• Remove the fuel tank and air cleaner box.
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/injector 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
u
09900-25008: Multi circuit tester
Tester knob indication: Voltage (-)
Yes
2
Turn the ignition switch OFF.
;
Disconnect the TP sensor/injector coupler.
Check the continuity between P/W wire and ground.
TP sensor continuity: ∞Ω (Infinity)
If OK, then measure the TP sensor resistance at the
;
coupler (between P/W and B/Br wires).
Turn the throttle grip and measure the resistance.
TP sensor resistance
z Throttle valve is closed : Approx. 1.1 kΩ
Throttle valve is opened: Approx. 4.3 kΩ
t
09900-25008: Multi circuit tester
Tester knob indication: Resistance (Ω)
Yes
<
4.80 V
)
:
( 4-52 and -60)
.
+ -
+ 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.
(P/W – 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
R R
2
Ground Ground Ground
P/W P/W
V
B/Br B/Br
Ground Ground
Ω
Ω
B/Br B/Br