Honda CBR125R, Руководство пользователя

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FUEL SYSTEM (PGM-FI)
5-33
MIL TROUBLESHOOTING
MIL 1 BLINK (MAP SENSOR)
1. Sensor Unit Power Line Inspection
Check the sensor unit power line inspection
(page 5-16).
Is the sensor unit power line normal?
YES – GO TO STEP 2.
NO – Replace or repair of the abnormal cir-
cuit.
2. MAP Sensor Output Voltage Inspection
Turn the ignition switch ON (and engine stop
switch " ": CM and U type).
Measure the voltage at the test harness termi-
nals.
Is the voltage within 2.6 – 3.2 V (20
°
C/68
°
F)?
YES – • Intermittent failure
• Loose or poor contact on the ECM
connector
NO – • About 5 V: GO TO STEP 3.
• About 0 V: GO TO STEP 4.
3. MAP Sensor Output Line Open Circuit
Inspection 1
Turn the ignition switch OFF.
Disconnect the sensor unit 5P connector.
Turn the ignition switch ON (and engine stop
switch " ": CM and U type).
Measure the voltage at the sensor unit 5P con-
nector of the wire side.
Is the voltage within 3.80 – 5.25 V?
YES – Faulty sensor unit (MAP sensor)
NO – Open circuit in Light green/yellow wire
4. MAP Sensor Output Line Short Circuit
Inspection
Turn the ignition switch OFF.
Disconnect the sensor unit 5P connector.
Check for continuity between the sensor unit 5P
connector terminal of the wire side and ground.
Is there continuity?
YES – Short circuit in Light green/yellow wire
NO – GO TO STEP 5.
Connection: 27 (+) – 4 (–)
Standard:
2.6 – 3.2 V (20
°
C/68
°
F)
(27) (4)
Connection:
Light green/yellow (+) – Green/orange (–)
Standard: 3.80 – 5.25 V
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
G/O
Lg/Y
Connection: Light green/yellow – Ground
Lg/Y
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminal)