Honda 954 Service Manual page 149

Crank the engine with the starter motor, and
measure the ignition pulse generator peak volt-
age at the ignition pulse generator 2P connec-
-
Connection: Yellow
(+)
V
Standard: 0.7 minimum (20"C/68"F)
Connect the ignition pulse generator 2P con-
nector.
Disconnect the ECM connectors.
Connect the test harness t o ECM connectors.
Crank the engine with the starter motor, and
measure the ignition pulse generator peak volt-
age at the test harness terminals.
-
Connection: Ground
B13 (+)
V
Standard: 0.7 minimum (20"C/68"F)
I
Check for continuity between the test harness
terminal and ground.
a
2 6
-
Connection: B13 Ground
No
Standard: continuity
I
I
I
Normal
I
3
,
FUEL
SYSTEM
Open circuit i n White/Yellow wire
Open circuit in Yellow wire
Continuity
Short circuit in Yellow wire
No continuity
Replace the ECM with a new one, and inspect
again
Fuel
(Programmed Injection)
it
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