Honda Civic Service Manual page 2066

Security System (cont'd)
3.
Security System Does Not Disarm With
The Valet Switch
Security System Does Not Work In The
Valet Mode ('99-'00 models)
1. ls fuse 3 (in the under-dash fuse box) (HX, LX,
EX, DX-V, Si) or the fuse in the securily in-line
luse holder (CX, DX) OK?
Yes - Go to the next step.
No -
Replace the blown fuse, then go to the
next step.
Does the fuse blow again?
Yes - Locate and reoair the short.
No- Retest the system.
ls there battery voltage al terminal 11 of the
security control unit connector, when the ignition
switch is in the ON (ll) position?
Yes - Go to the next steo.
No -
Locate the open in the wiring between
fuse 3 (HX, LX, EX, DX-V, Si) or the luse
in the security inline fuse holder (CX,
DX) and the securiv control unit.
133-22
4. ls there approximately 5 volts at terminal 5 of the
security control unit connector?
Yes - Go to the next steo.
No -
Replace the security control unit.
ls the voltage at terminal 5 of the security control
unil connector changed from approximately 5
volts to 0 volts when the valet switch is pressed?
Yes - Replace the security control unit.
No - Check that the valet switch is working
properly, then check for an open in the
wiring between the valet switch and the
security control unit.