C14" Tp Sensor Circuit Malfunction - Suzuki AN400 Service Manual

4-28 FI SYSTEM

"C14" TP SENSOR CIRCUIT MALFUNCTION

DETECTED CONDITION
Output voltage low or high
(0.45 Sensor voltage < 4.80 V)
(without the above range.)
INSPECTION
Step 1
1) Remove the side leg shield. (#7-15)
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 1.
5) Turn the ignition switch ON.
6) Measure the voltage at the Red wire and ground.
7) If OK, then measure the voltage at the Red wire and B/Br
wire.
$ TP sensor input voltage:4.5 – 5.5 V
! 09900-25008: Multi circuit tester set
& Tester knob indication: Voltage (')
Is the voltage OK?
YES Go to Step 2
• Loose or poor contacts on the ECM coupler.
NO • Open or short circuit in the Red wire or B/Br
wire.
• TP sensor maladjusted.
• TP sensor circuit open or short.
• TP sensor malfunction.
• ECM malfunction.
( + Red – - Ground)
( + Red – - B/Br)
POSSIBLE CAUSE
1
Ground
1
R
B/Br
R