Honda CBR125R, Руководство пользователя

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FUEL SYSTEM (PGM-FI)
5-27
DTC 21-1 (O
2
SENSOR)
• Do not get grease, oil or other materials in the O
2
sensor air hole.
• Do not reuse O
2
sensor cord, if the O
2
sensor cap
is disconnected, replace the O
2
sensor cord with
a new one.
• Before starting the inspection, check for loose or
poor contact on the O
2
sensor 2P connector or O
2
sensor cap and recheck the DTC.
1. O
2
Sensor System Inspection
Turn the ignition switch ON (and engine stop
switch " ": CM and U type).
Start the engine and warm up the engine up to
coolant temperature is 80
°
C (176
°
F).
Test-ride the motorcycle and check the O
2
sensor
with the HDS pocket tester.
Is the DTC 21-1 indicated?
YES – GO TO STEP 2.
NO – Intermittent failure
2. O
2
Sensor Short Circuit Inspection
Turn the ignition switch OFF.
Disconnect the O
2
sensor 2P connector (page 7-
5).
Check for continuity between the O
2
sensor 2P
connector of the wire side and ground.
Is there continuity?
YES – Short circuit in Black/orange wire
NO – GO TO STEP 3.
3. O
2
Sensor Open Circuit Inspection
Disconnect the ECM 33P connector.
Check the continuity between the ECM 33P con-
nector of the wire side and O
2
sensor 2P connec-
tor of the wire side.
Is there continuity?
YES – GO TO STEP 4.
NO – Open circuit in Black/orange wire
Connection: Black/orange – Ground
O
2
SENSOR 2P CONNECTOR
(Wire side/male terminal)
Connection: 3 (Black/orange) – Black/orange
TOOL:
Test probe
07ZAJ-RDJA110
ECM 33P CONNECTOR
(Wire side/female terminal)
(3)
O
2
SENSOR 2P CONNECTOR
(Wire side/male terminal)