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'98 - 00 models:
I
P0453
I
The scan tool indicates Diagnostic Trouble Code (DTC) P0453: A high voltage problem in the Fuel Tank Pressure
sensor.
-
The MIL has been reported on.
-
OTC PO.S3 is stored.
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Check the vacuum lines:
Check the vacuum lines
of
the
fuel tank pressure
sensor
for mis-
routing,
leakage.
breakage and
clogging.
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Are
the vacuum lines OK?
/ '
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YES
Probhtm verification:
1. Do
the
ECM
/
PCM
Reset
Procedure.
2. Remove the fuel fill cap.
3.
Turn the ignition switch ON
III).
4.
Monitor the FTP Sensor volt-
age
with
the Honda PGM
Tester,
or measure
voltage
between body ground
and
ECM/PCM terminal A29.
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'-.
Is
there
approx. 2.5
V?
/'
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NO
Check for an open in the wire
ISG2Iine):
1.
Turn
the ignition switch
OFF.
2.
Reinstall the fuel fill
cap
.
3.
Disconnect the fuel tank pres-
sure
sensor 3P connector.
4. Turn
the
ignition
switch
ON
(lI).
5. Measure
voltage
between the
fuel tank pressure sensor 3P
connector
terminals
No.
1 and
NO
. 2.
I
"
Is there approx. 5 V?
./
I
YES
Check for an open
in
the wire
IPTANK
line):
Measure
voltage
between the
fuel tank pressure
sensor
3P
con-
nector No.3 terminal and No.2
terminal.
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Is there approx. 5 V7
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NO
ITo
page 11-212)
NO
Repair or replace vacuum line.
I
n necessary.
Intermittent f.ilure, system is OK
lit
this
time.
Check for poor con-
YES
nedions or loose wlr., at CS80
lIocated at access panal), C646
(fuel tank pressure •• nsorl and
ot the
ECM/PCM.
NO
Repair open in the wire
betw ..
n
the fuel tank pressure sensor end
the
ECM/PCM
IC1S).
YES
Replace the fuel tank pressure
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.. nSOl'.
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ECM/PCM CONNECTOR A 132P)
Wire
side
of
female
terminals
FUEL
TANK
PRESSURE SENSOR
3P CONNECTOR (CM61
502
V
IGRN/BLK)
Wire side
of female
terminals
PTANK
ILTGRNI
(conl'd)
11-211
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Table of Contents
Troubleshooting
