Honda Civic 1998 Service Manual page 1242

Integrated Control Unit
Input Test (cont'dl
a l - - - - - - - - - - - > A 7
A 8 - - - - - - - - . - > A 1 4
Key-in/Seat Belt Reminder, Lights-on Reminder System:
Cavity Wire
Test condition
Bulb Check System (Brake System Light):
Cavity Wire
Test condition
female terminals
BLU/RED
Possible cause it result is not obtaineo
Possible cause il result is not obtained
Test: Desired result
Test: Desired result
A8
C o m b i n a t i o n l i g h t
switch ON
Check for voltage to groundl
There should be battery voltage.
B l o w n N o . 3 0 ( 7 . 5 A l f u s e i n t h e
under-dash fuse/relay box
Faulty combination light switch
An open in the wire
81
RED/BLU
l g n i t i o n s w i t c h O N ( l l ) ,
and driver's seat belt
switch unbuckled
Check for voltage to ground:
T h e r e s h o u l d b e 1 V o r l e s s .
P o o r g r o u n d ( c 5 5 2 )
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 i V or less.
. Faulty driver's door switch
' An open in the wire
8 1 0
BLU/RE D
lgnition key inserted
into the ignition key
swrtcn
Check for voltage to ground:
T h e r e s h o u l d b e ' l V o r l e s s .
P o o r g r o u n d ( G 4 0 1 , c 4 0 2 )
Faulty ignition key switch
An open in the wire
A4 G R N / R E D
l g n i t i o n s w i t c h o N ( ) ,
brake fluid reservoir
f u l l , a n d p a r k i n g b r a k e
lever down
Connect to ground: Brake system
l i g h t s h o u l d c o m e o n .
Blown No. 25 (7.5 A) fuse in the
under dash fuse/relay box
Blown brake system light bulb
An open in the wire
A 1 3 B tU/^/VHT
lgnition switch at
START 0 )
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
A n o p e n i n t h e w i r e
23-144
l.r
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