Honda Civic Service Manual page 1632

Integrated Gontrol Unit
Input Test (cont'dl
A 8 - - - - - - - - . - - a l l
Key-in/Seat Belt R€mind€r, Lights-on Reminder Systom:
Cavity Wire Test condhion
Bulb Check System (Brako System Light):
Cavity Wire
Test condilion
Tost: D€sirod r€guh
T6st: Dosirad result
Possible cause if result is not obtained
Possibls cause if rasuft b not obtainod
A8
Combination light
switch ON
Check for voltage to ground;
There should be battery voltage.
B l o w n N o . 3 0 ( 7 . 5 A ) f u s e i n t h e
under-dash fuse/relay box
Faulty combination light switch
An open in the wire
B7 RED/BLU
lgnition switch ON (ll),
and driver's seat belt
switch unbuckled
Check for voltage to ground:
There should be 1 V or less.
Poor ground (G552)
Faulty seat belt switch
An open in the wire
B9
G R N
Driver's door open
Check for voltage to ground:
There should be 1 V or less.
. Faulty driver's door switch
. An open in the wire
B l 0 BLU/RED
lgnition key inserted
into the ignition key
switch
Check for voltage to ground:
There should be 1 V or less.
Poor ground (G401. G402)
Faulty ignition key switch
An open in the wire
A4 GRN/RED
lgnition switch ON {ll),
brake fluid reservoir
full, and parking brake
tever oown
Connect to ground: Brake system
light should come on.
B l o w n N o . 2 5 ( 7 . 5 A l f u s e i n t h e
under-dash fuse/relay box
Blown brake system light bulb
An open in the wire
A 1 3 BLUA/1r'HT
lgnition switch at
START (III)
Check for voltage to ground:
There should be battery voltage.
Blown No.31 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty starter cut relay
An open in the wire
2 3 - 1 6 0