Honda Civic Service Manual page 550

Emission Control System
Evaporative Emission (EVAPI Controls (cont'dl
\ v
ECM/PCM CONNECTOR D {16PI
PTANK
{LT GRN)
SG2 (GRN/BLK}
Wire side of female terminals
l F r o m p a g e 1 1 - 2 7 9 1
Check for an open in the wire
{PTANK line):
Measure voltage between ECM/
P C M c o n n e c t o r t e r m i n a l s D 1 5
a n d D ] 1 .
Repair open in the wire between
E C M / P C M l D 1 5 ) a n d l u e l t a n k
pressuae sensor.
ls there approx. 5 V?
Substitute a known'good ECM/
PCM end recheck. lt symptom/
indication goes awav, replace the
original ECM/PCM.
-2AO