Honda SH300I 2006, Manual

Page: 150 / 511

FUEL SYSTEM (PGM-FI)
6-40
MIL 21 BLINKS (O
2
SENSOR)
• Before starting the inspection, check for loose or
poor contact on the O
2
sensor cap connector and
recheck the MIL blinking.
1. O
2
Sensor Open Circuit Inspection
Turn the ignition switch OFF.
Connect the test harness to the ECM 33P connec-
tor (page 6-14).
Disconnect the O
2
sensor cap connector.
Check the continuity between the test harness
terminal and the O
2
sensor connector terminal of
the wire harness side.
Is there continuity?
YES – GO TO STEP 2.
NO – Open circuit in Black/Orange wire
2. O
2
Sensor Short Circuit Inspection
Disconnect the test harness and ECM 33P con-
nector disconnected.
Check for continuity between the O
2
connector
terminal and ground.
Is there continuity?
YES – Short circuit in the Black/Orange wire
NO – GO TO STEP 3.
Connection: A3 – Black/Orange
Bl/O
CAP CONNECTOR (Wire side
of female terminal)
TEST HARNESS PIN BOX
Connection: Black/Orange – Ground
Bl/O
CAP CONNECTOR
(Wire side of
female terminal)