Mil Troubleshooting - Honda Transalp XL700V Manual

FUEL SYSTEM (PGM-FI)

MIL TROUBLESHOOTING

MIL 1 BLINK (MAP SENSOR)
• Before starting the inspection, check for loose or
poor contact on the MAP sensor 3P (Black) con-
nector and ECM 33P connectors, then recheck
the MIL blinking.
1. MAP Sensor Output Voltage Inspection
Connect the ECM test harness to ECM connec-
tors (page 5-16).
Turn the ignition switch ON and engine stop
switch " ".
Measure the voltage at the test harness termi-
nals.
Connection: B9 (+) – A18 (–)
Is the voltage within 2.7 – 3.1V?
YES
NO
2. MAP Sensor Output Line Inspection
Turn the ignition switch OFF.
Disconnect the MAP sensor 3P (Black) connec-
tor.
Turn the ignition switch ON and engine stop
switch " ".
Measure the voltage at the wire harness side.
Connection: Light green/yellow (+) – Green/
Is the voltage within 4.75 – 5.25V?
YES
NO
3. MAP Sensor Input Voltage Inspection
Turn the ignition switch OFF.
Disconnect the MAP sensor 3P (Black) connec-
tor.
Turn the ignition switch ON and engine stop
switch " ".
Measure the voltage at the wire harness side.
Connection: Yellow/red (+) – Ground (–)
Is the voltage within 4.75 – 5.25V?
YES
NO
5-38
– Intermittent failure
– • About 5 V
GO TO STEP 2.
• About 0 V
GO TO STEP 3.
orange (–)
– GO TO STEP 3.
– • Open circuit in Light green/orange
wire
• Open circuit in Green/orange wire
– • From STEP 1: GO TO STEP 4.
• From STEP 2: Faulty MAP sensor
– GO TO STEP 5.
A18
MAP SENSOR 3P (BLACK) CONNECTOR
(Wire side/female terminal)
G/O
MAP SENSOR 3P (BLACK) CONNECTOR
(Wire side/female terminal)
B9
Lg/Y
Y/R