Honda NSS250A Reflex 2001-2007, Руководство пользователя

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FUEL SYSTEM (PGM-FI)
6-20
SENSOR UNIT POWER LINE
INSPECTION (NSS250S)
BEFORE DTC TROUBLESHOOTING
• When the DTC displays 1-2, 8-1 and 9-2, check
the following before DTC troubleshooting.
• Before starting the inspection, check for loose or
poor contact on the sensor unit 5P (Black) and
ECM 33P (Black) connectors.
1. Sensor Unit Power Input Voltage Inspection
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 – Turn the ignition switch OFF, and dis-
connect the sensor unit 5P (Black) con-
nector and start the DTC
troubleshooting (page 6-24).
NO – GO TO STEP 2.
2. Sensor Unit Power Line Open Circuit Inspection
Turn the ignition switch OFF.
Disconnect the ECM 33P (Black) connector (page
6-98).
Check the continuity at the Yellow/red and
Green/orange wires between the sensor unit 5P
and ECM 33P connectors.
Is there continuity?
YES – GO TO STEP 3.
NO – • Open circuit in Yellow/red wire
• Open circuit in Green/orange wire
3. Sensor Unit Input Voltage Line Short Circuit
Inspection
Check the continuity between the sensor unit 5P
connector of the wire side and ground.
Is there continuity?
YES – Short circuit in Yellow/red wire
NO – Replace the ECM with a known good
one, and recheck.
CONNECTION: Yellow/red (+) – Green/orange (–)
STANDARD:
4.75 – 5.25 V
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
Yellow/red Green/orange
TOOL:
Test probe
07ZAJ-RDJA110
CONNECTION: Yellow/red – Yellow/red
Green/orange – Green/orange
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
ECM 33P CONNECTOR
(Wire side/female terminals)
Green/orange
Yellow/red Yellow/red
Green/orange
CONNECTION: Yellow/red – Ground
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
Yellow/red
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