Tp Sensor Circuit Malfunction - TGB BLADE 600 Service Manual

TP SENSOR CIRCUIT MALFUNCTION

DETECTED CONDITION
Output voltage is not within the following
range.
Difference between actual throttle opening
and opening calculated by ECU is larger
than specified value.
0.1 V Sensor voltage < 4.8 V
Sensor voltage is higher than specified
value.
Sensor voltage is lower than specified value.
INSPECTION
Step 1
(When output voltage is out of specified)
1) Loosen and lift up the fuel tank.
2) Turn the ignition switch OFF.
3) Check the TP sensor coupler for loose or
poor contacts.
If OK, then measure the TP sensor input
voltage.
4) Disconnect the TP sensor coupler.
5) Turn the ignition switch ON.
6) Measure the voltage at the Red wire B and
ground.
7) Also, measure the voltage at the
Yellow/Black wire and Gray/Red wire.
TP sensor input voltage: 4.5 – 5.5 V
(+Yellow/Black – - Ground)
(+Yellow/Black – - Gray/Red)
4-1. FUEL INJECTION SYSTEM
POSSIBLE CAUSE
• TP sensor maladjusted
• TP sensor circuit open or short
• TP sensor malfunction
• ECU malfunction
• TP sensor circuit shorted to VSENS or
ground circuit open
• TP sensor circuit open or shorted to ground
or VSENS circuit open
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