FUEL SYSTEM (PGM-FI)
5-40
MIL 8 BLINKS (TP SENSOR)
• Before starting the inspection, check for loose or
poor contact on the TP sensor 3P (Black) connec-
tor and ECM 33P connectors, then recheck the
MIL blinking.
1. TP Sensor Output Voltage
Turn the ignition switch OFF.
Connect the ECM test harness to ECM connec-
tors (page 5-14).
Turn the ignition switch ON and engine stop
switch " ".
Measure the TP sensor output voltage at the test
harness terminals.
• A voltage marked * refers to the value of the
ECM output voltage (STEP 3) when the volt-
age reading shows 5 V.
When the ECM output voltage reading shows
other than 5 V, derive the TP sensor output
voltage at the test harness as follows:
In the case of the ECM output voltage is 4.75
V:
0.4 X 4.75/5.0 = 0.38 V
0.6 X 4.75/5.0 = 0.57 V
Thus, the solution is “0.38 – 0.57 V” with the
throttle fully closed.
Replace 0.4 and 0.6 with 4.2 and 4.8 respec-
tively, in the above equations to determine
the throttle fully opened range.
Is there standard voltage?
YES – Intermittent failure
NO – GO TO STEP 2.
2. TP Sensor Input Voltage Inspection
Turn the ignition switch OFF.
Disconnect the TP sensor 3P (Black) connector.
Turn the ignition switch ON and engine stop
switch " ".
Measure the voltage at the wire harness side.
Is the voltage within 4.75 – 5.25 V?
YES – GO TO STEP 4.
NO – GO TO STEP 3.
CONNECTION:B31 (+) – A18 (–)
STANDARD: *0.4 – 0.6 V (throttle fully closed)
*4.2 – 4.8 V (throttle fully opened)
TEST HARNESS PIN BOX
(A TERMINALS)
TEST HARNESS PIN BOX
(B TERMINALS)
(A18)
(B31)
CONNECTION: Yellow/red (+) – Green/orange (–)
3P (Black) CONNECTOR
(Wire side/female terminals)
Yellow/
red
Green/
orange
Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys.
email: info@motomatrix.co.uk
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