Honda CBR125R Owner's Manual page 121

3. IACV Open Circuit Inspection
Disconnect the ECM 33P connector.
Check the continuities between the ECM 33P and
IACV 4P connectors of the wire side.
Connection:
20 (Pink/black) – Pink/black
21 (Blue/black) – Blue/black
31 (Brown/yellow) – Brown/yellow
32 (Blue/red) – Blue/red
TOOL:
Test probe
Is there continuity?
YES – GO TO STEP 4.
NO – • Open circuit in Blue/black or Pink/
black wire
• Open circuit in Brown/yellow or
Blue/red wire
4. IACV Resistance Inspection
Measure the resistance at the IACV 4P connector
terminals.
Connection: Blue/black – Blue/red
Pink/black – Brown/yellow
110 – 150 Ω (25°C/77°F)
Standard:
Is the resistance within 110 – 150 Ω (25 ° C/77 ° F)?
YES – Replace the ECM with a good one, and
recheck.
NO – Faulty IACV
DTC 33-2 (EEPROM)
1. Recheck DTC
Clear the DTC's (page 5-12).
Turn the ignition switch ON (and engine stop
switch " ": CM and U type).
Recheck the ECM EEPROM.
Is the DTC 33-2 indicated?
YES – Replace the ECM with a known good
one, and recheck.
NO – Intermittent failure
07ZAJ-RDJA110
(21)
(32)
ECM 33P CONNECTOR
(Wire side/female terminals)
IACV 4P CONNECTOR
(IACV side/male terminals)
FUEL SYSTEM (PGM-FI)
IACV 4P CONNECTOR
(Wire side/female terminals)
P/Bl
Bu/Bl
Br/Y
(20)
(31)
Bu/R Bu/Bl
Br/Y P/Bl
Bu/R
5-29