Honda Civic Service Manual page 546

Emission Control System
Evaporative Emission (EVAP) Controls (cont'dl
!
FUEL TANK
PRESSURE SENSOR
3P CONNECTOR {C7921
PTANK
{LT GRN)
sG2
{GRN/BLK)
Wire side of f€mal€ terminals
{From page 11-275)
Check to. ! short in the wiro
IPTANK linol:
M e a s u r e v o l t a g e b e t w e e n t h e
firel tank pressure sensor 3P con-
nector No. 3 terminal and No. 2
terminal,
ls there approx.5 V?
Check fo. a Short in the wire
IPTANK IinoI:
1. Turn the ignition switch OFF.
2. Disconnect the ECM/PCM con,
nector D 116P).
3. Check for continuity between
the fuel tank pressure sensor
3P connector No.3 terminals
and body ground.
Repair thort in thc wire betwean
tho fuel iank pre$uro 3€naor and
ECM/FCM tDl5t.
ls there continuity?
Substitute ! known-good ECM/
PCM and recheck. lf .ymptom/
indication go6s awry, repleco th6
origin.l ECM/PCM.
PTANK
{LT GRNI
-276