Honda EP3 Service Manual page 304

1 1 .
1 3 .
'10. l\4easure voltage
between ECM connector terminal
A7 and body ground,
ECM CONNECTOR A 13lPI
Wire side ot female terminals
ls there about 5 V?
YES-Repair open in the wire between the ECM
(A7) and the CKP sensor. t
N O - G o t o s t e p 1 1 .
Turn the ignition switch OFF.
Disconnect ECM connector A (31P)
Check for continuity between ECM connector
terminal 47 and body ground.
ECM CONNEfiOR A (31P)
Wire side of female terminals
ls there continuity?
YES-Repair short in the wire between the ECM
(A7) and the CKP sensor. t
NO Update the ECM if it does not have the latest
software. or substitute a known-good ECI\4, then
recheck (see page 1 1-6). lf the symptom/indication
goes away with a known-good ECM, replace the
o r i g i n a l E C M . t
11-79