Cruise Control Unit Input Test - Honda S2000 Service Manual

Gruise Gontrol
Cruise Control Unit Input Test
SRS components are located in this area, review the SRS component locations, precautions, and procedures in the
SRS section (24) before performing repairs or service.
1 . R e m o v e t h e k n e e b o l s t e r u n d e r t h e s t e e r i n g c o l u m n .
2 . D i s c o n n e c t t h e l 4 P c o n n e c t o r f r o m t h e c r u i s e c o n t r o l u n i t .
3. Inspect the connector and connector terminals to be sure they are making good contact.
4. lf the terminals are bent, loose, orcorroded, repairthem as necessary, and recheckthesystem.
5. Perform the following input test, at the 14P connector.
. l f a t e s t i n d i c a t e s a p r o b l e m , f i n d a n d c o r r e c t t h e c a u s e , t h e n r e c h e c k t h e s y s t e m .
. lf all the tests prove OK, check the cruise control actuator operation and adjust the actuator cable.
CRUiSE CONTBOL UNIT CONNECTOR (14PI
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I
W i r e s r d e o f f e m a l e t e r m r n a s
Cavity Wire color Test condition
Test: Desired result Possible cause if result is not
obtained
1 BRN,ryVHT
Connect to terminal 4
( B L f i E L ) w i t h a
j u m p e r w i r e , a n d
turn ignition switch
o n .
The magnetic clutch should
c l i c k a n d t h e o u t p u t l i n k s h o u l d
be locked.
Faulty actuator
P o o r g r o u n d ( G 3 0 1 )
An open in the wire
2 GRY
l g n i t i o n s w i t c h O N
( l l ) , m a i n s w i t c h O N
and brake pedal
released
Check for voltage to ground:
T h e r e s h o u l d b e 0 V w i t h t h e
brake pedal pressed. and there
should be battery voltage with
the brake pedal released.
Faulty brake switch
Faulty main switch
An open in the wire
B l o w n N o . 4 7 ( 1 0 A ) ( N o . 4 7
( 1 5 A ) ) f u s e i n t h e m a i n
under-hood fuse/relav box
3
B L K
U n d e r a l l c o n d i t i o n s Check for continuity to ground:
There should be continuity.
Poor ground (G402)
An open in the wire
4 BLKI/EL lgnition switch ON
( l l )
Check for voltage to ground:
There should be battery voltage.
B l o w n N o . 4 7 ( 1 0 A ) ( N o . 4 7
( 1 5 A ) ) f u s e i n t h e m a i n
under-dash f use/relay box
A n o D e n i n t h e w i r e
5
WHT/BLK With brake pedal
pressed and released
C h e c k f o r v o l t a g e t o g r o u n d :
. B l o w n N o . 4 T { 1 0 A ) ( N o . 4 7
T h e r e s h o u l d b e b a t t e r y v o l t a g e
( 1 5 A ) ) f u s e i n t h e m a i n
with the brake pedal pressed,
under-hood fuse/relay box
and there should be 0 V with the
. Faulty brake switch
brake Dedal released.
. An oDen in the wire
: ' 0 2 - 0 3 m o d e l s
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