Honda Civic Service Manual page 548

Emission Control System
Evaporative Emission (EVAPI Controls {cont,dl
J
FUEL TANK
PRESSURE SENSOR
SU8-HABNESS
6P CONNECTOR 1C574 tC568)rt
PTANK
{LT GRN}
PTANK
ILT GRN}
Wire side of female terminals
( F r o m p a g e 1 1 - 2 7 7 )
C h e c k f o r a s h o r t i n t h e w i r e
{PTANK line):
A t t h e a c c e s s p a n e l s i d e , m e a
s u r e v o l t a g e b e t w e e n t h e f u e l
tank pressure sensor sub-harness
6P connector No. 2 terminal and
N o . 6 t e r m i n a l .
ls there approx. 5 V?
C h o c k l o r a S h o r t i n t h e w i . e
(PTANK line):
1. Turn the ignition switch OFF.
2. Disconnect the ECM/PCM con-
nector A (32P).
3. Check for continuity between
the fuel tank pressure sensor
sub-harness 6P connector No.
2 terminals and body ground.
Repair short in the wi.e betwsen
the luel tank pressure sensor and
ECM/PCM {A291.
Subsiitute a known-good ECM/
PCM and rechock. lf symptom/
indication goes away, replac€ the
original ECM/PCM.
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