Honda NSS250A Reflex 2001-2007, Руководство пользователя

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FUEL SYSTEM (PGM-FI)
6-58
MIL TROUBLESHOOTING (NSS250A)
MIL 1 BLINK (MAP SENSOR)
1. Sensor Unit Power Line Inspection
Check the sensor unit power line inspection
(page 6-22).
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 " ".
Measure the voltage at the test harness termi-
nals.
Is the voltage within 0.5 – 3.4 V (20
°
C/68
°
F)?
YES – • Intermittent failure
• Loose or poor contact on the PCM
connector.
NO – GO TO STEP 3.
3. MAP Sensor Output Voltage Inspection 2
Turn the ignition switch OFF.
Disconnect the sensor unit 5P (Black) connector.
Turn the ignition switch ON and engine stop
switch " ".
Measure the voltage at the wire side.
Is the voltage within 4.75 – 5.25 V?
YES – Faulty sensor unit (MAP sensor)
NO – GO TO STEP 4.
4. MAP Sensor Output Line Short Circuit
Inspection
Turn the ignition switch OFF.
Check the continuity between the sensor unit 5P
connector of the wire side and ground.
Is there continuity?
YES – Short circuit in Yellow/orange wire
NO – GO TO STEP 5.
CONNECTION: 8 (+) – 10 (–)
STANDARD:
0.5 – 3.4 V (20
°
C/68
°
F)
(8) (10)
TEST HARNESS PIN BOX
CONNECTION:
Yellow/orange (+) – Green/orange (–)
STANDARD:
4.75 V – 5.25 V
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
Yellow/orange
Green/orange
CONNECTION: Yellow/orange – Ground
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
Yellow/orange
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
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