Honda CBR125R, Owner'S Manual

Page: 109 / 430

FUEL SYSTEM (PGM-FI)
5-17
4. Sensor Unit Input Voltage Line Open Circuit
Inspection
Check for continuities between the test harness
and sensor unit 5P connector of the wire side.
Is there continuity?
YES – Intermittent failure
NO – • Open circuit in White/red wire
• Open circuit in Green/orange wire
DTC TROUBLESHOOTING
DTC 1-1 (MAP SENSOR LOW
VOLTAGE)
1. MAP Sensor System Inspection
Turn the ignition switch ON (and engine stop
switch " ": CM and U type).
Check the MAP sensor with the HDS pocket
tester.
Is about 0 V indicated?
YES – GO TO STEP 2.
NO – • Intermittent failure
• Loose or poor contact on the sensor
unit 5P connector
2. Sensor Unit Power Line Inspection
Check the sensor unit power line inspection
(page 5-15).
Is the sensor unit power line normal?
YES – GO TO STEP 3.
NO – Replace or repair the abnormal circuit.
3. MAP Sensor Output Voltage Inspection
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 – GO TO STEP 5.
NO – GO TO STEP 4.
Connection: 6 – White/red
4 – Green/orange
(4)
(6)
G/O
W/R
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
Connection:
Light green/yellow (+) – Green/orange (–)
Standard: 3.80 – 5.25 V
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
G/O Lg/Y