Honda NSS250A Reflex 2001-2007, Руководство пользователя

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FUEL SYSTEM (PGM-FI)
6-52
3. TP Sensor Output Line Short Circuit Inspection
Turn the ignition switch OFF.
Disconnect the ECM 33P (Black) connector.
Disconnect the sensor unit 5P (Black) connector.
Check the continuity between the sensor unit 5P
connector of the wire side and ground.
Is there continuity?
YES – Short circuit in White/red wire
NO – GO TO STEP 4.
4. TP Sensor Voltage Input Line Open Circuit
Inspection
Check the continuity between the sensor unit 5P
connector of the wire side and test harness.
Is there continuity?
YES – • Faulty sensor unit (TP sensor)
• Replace the ECM with a known good
one, and recheck.
NO – Open circuit in White/red wire
MIL 9 BLINKS (IAT SENSOR)
1. Sensor Unit Power Line Inspection
Check the sensor unit power line inspection
(page 6-20).
Is the sensor unit power line normal?
YES – GO TO STEP 2.
NO – Replace or repair the abnormal circuit.
2. IAT 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 2.7 – 3.1 V (20
°
C/68
°
F)?
YES – • Intermittent failure
• Loose or poor contact on the ECM
connector
NO – GO TO STEP 3.
CONNECTION: White/red – Ground
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
White/red
CONNECTION: 5 – White/red
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
TEST HARNESS PIN BOX
White/red
(5)
CONNECTION: 14 (+) – 4 (–)
STANDARD:
2.7 – 3.1 V (20
°
C/68
°
F)
TEST HARNESS PIN BOX
(4) (14)
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