Honda CBR125R Owner's Manual page 134

FUEL SYSTEM (PGM-FI)
3. IACV Open Circuit Inspection
Connect the ECM test harness to ECM 33P con-
nector.
Check the continuities between the ECM test har-
ness and IACV 4P connector of the wire side.
Connection: 20 – Pink/black
Is there continuity?
YES
NO
MIL 54 BLINKS (BANK ANGLE
SENSOR)
• Before starting the inspection, check for loose or
poor contact on the bank angle sensor 3P con-
nector and recheck the MIL blinking.
1. Bank Angle
Inspection
Turn the ignition switch OFF.
Disconnect the bank angle sensor 3P connector.
Turn the ignition switch ON (and engine stop
switch " ": CM and U type).
Measure the voltage at the bank angle sensor
connector of the wire side.
Connection: White/red (+) – Green/orange (–)
Standard:
Is there within 4.75 – 5.25 V?
YES
NO
2. Bank Angle Sensor Input Voltage Line Short
Circuit Inspection
Turn the ignition switch OFF.
Check the continuity between the bank angle
sensor 3P connector of the wire side and
ground.
Connection: White/red – Ground
Is there continuity?
YES
NO
5-42
21 – Blue/black
31 – Brown/yellow
32 – Blue/red
– Replace the ECM with a known good
one, and recheck.
– • Open circuit in Blue/black or Pink/
black wire
• Open circuit in Brown/yellow or
Blue/red wire
Sensor Power Input
4.75 – 5.25 V
– GO TO STEP 4.
– GO TO STEP 2.
– GO TO STEP 3.
– Short circuit in White/red wire
Bu/Bl
P/Bl Br/Y
IACV 4P CONNECTOR
(Wire side/female terminals)
Voltage
BANK ANGLE SENSOR 3P CONNECTOR
(Wire side/female terminals)
W/R
BANK ANGLE SENSOR 3P CONNECTOR
(Wire side/female terminal)
W/R
(21)
(20)
(31) (32)
Bu/R
G/O