Honda CB 600F Hornet 2007 Shop Manual page 143

2. 02 Sensor Heater Resistance Inspection
Turn the ignition switch OFF.
Disconnect the 02 sensor 4P (Black) connector
and measure the resistance at the 02 sensor con­
nector terminals of the sensor side.
CONNECTION: White -
Is the resistance within 10
- GO TO STEP 3.
YES
NO - Faulty 02 sensor
3. 02 Sensor Heater Power Input Line Inspection
Turn the ignition switch ON and engine stop
switch "O".
Measure the voltage between O, sensor 4P
(Black) connector of the wire harness side and
ground.
CONNECTION: Black/white(+)
Is there battery voltage?
YES - GO TO STEP 4.
- Open circuit in the Black/white wire
NO
4. O, Sensor Heater Open Circuit Inspection
Turn the ignition switch OFF.
Disconnect the ECM 33P (Light gray) connector.
Check the continuity between the ECM 33P
(Light gray) connector and O, sensor 4P (Black)
connector of the wire harness side.
CONNECTION: B2 - Black/green
TOOL:
Test probe
Is there continuity?
YES - GO TO STEP 5.
NO - Open circuit in Black/green wire
5. O, Sensor Heater Short Circuit Inspection
Connect the ECM 33P (Light gray) connector.
Check for continuity between the O, sensor
heater 4P (Black) connector of the wire harness
side and ground.
CONNECTION: Black/green - Ground
ls there continuity?
YES - Short circuit in Black/green wire
NO - Replace the ECM with a known good
one, and recheck; refer to Key Registra­
tion Procedures (page 21-6)
White
40 {20"C/68 ° F}7
-
f2
1 - 1
- Ground
4P (Black)
CONNECTOR (Wire
side/male terminals)
07ZAJ-RDJA 110
2
4P (Black) CONNECTOR
(Wire side/male terminals)
FUEL SYSTEM (PGM-FI)
4P (Black) CONNECTOR
(Sensor side/female terminals)
4P (Black) CONNECTOR
(Wire side/male terminals)
Black/white
33P (Light gray)
CONNECTOR (Wire
side/female terminals)
Black/
green
'------{Q 1------�
Black/green
5-33