Honda CBR125R, Руководство пользователя

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FUEL SYSTEM (PGM-FI)
5-28
4. O
2
Sensor Inspection
Replace the O
2
sensor and O
2
sensor cord with a
known good one (page 5-67).
Clear the DTC’s (page 5-12).
Connect the O
2
sensor 2P connector and ECM
33P connector.
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
°
C).
Test-ride the motorcycle and recheck the O
2
sen-
sor with the HDS pocket tester.
Is the DTC 21-1 indicated?
YES – Replace the ECM with a known good
one, and recheck.
NO – Faulty original O
2
sensor and/or O
2
sen-
sor cord
DTC 29-1 (IACV)
• Before starting the inspection, check for loose or
poor contact on the IACV 4P connector and
recheck the DTC.
1. Recheck DTC
Clear the DTC’s (page 5-12).
Turn the ignition switch ON (and engine stop
switch " ": CM and U type).
Check the IACV with the HDS pocket tester.
Is the DTC 29-1 indicated?
YES – GO TO STEP 2.
NO – • Intermittent failure
• Loose or poor contact on the IACV 4P
connector
2. IACV Short Circuit Inspection
Turn the ignition switch OFF.
Disconnect the IACV 4P connector.
Check for continuities between the IACV 4P con-
nector of the wire side and ground.
Is there continuity?
YES – • Short circuit in Blue/black or Pink/
black wire
• Short circuit in Brown/yellow or
Blue/red wire
NO – GO TO STEP 3.
Connection: Blue/black – Ground
Pink/black – Ground
Brown/yellow – Ground
Blue/red – Ground
Bu/R Bu/Bl
IACV 4P CONNECTOR
(Wire side/female terminals)
Br/Y P/Bl