Page 1313 of 1503
Safety Indicato r (NSX- T "ope n top" )
Roof Loc k Switc h Tes t
1. Remov e th e headline r (se e sectio n 20 ).
2 . Disconnec t th e 3 P connecto r fro m th e roo f loc k
switch .
ROOF LOC KSWITC H
View fro mwire sid e
3. Ther e shoul d b e continuit y betwee n th e A an d B ter -
minal s wit h th e switc h release d (roo f unlatche d o r
off) .
4. Ther e shoul d b e n o continuit y wit h th e switc h
pushe d (roo f latched) .
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Page 1314 of 1503
Roof Holder Switch Test
1. Open the rear hatch and engine cover.
2. Disconnect the 1P connector from the roof holder
switch.
3. There should be continuity between the A and B ter-
minals with the switch released (roof not stored).
4. There should be no continuity with the switch
pushed (roof stored).
Roof not stored (ON)ProCarManuals.com
Page 1315 of 1503
A/T Gea r Positio n Indicato r
Componen t Locatio n Inde x
SRS component s ar e locate d i n thi s area . Revie w th e
SR S componen t locations , precautions , an d procedure s
i n th e SR S ( sectio n 24 ) befor e performin g repair s o r ser -
vice .
NOTE : Fo r indicato r troubleshooting , refe r t o
sectio n 14 .
A/T GEAR POSITIO N
INDICATO R
Inpu t Test , pag e 23-16 0
TRANSMISSIO N
CONTRO L MODUL E (TCM )
See Automati c Transmissio nsection 1 4
A/ T GEA R POSITIO N
SWITC H
Test , pag e 23-16 2
Replacement , pag e 23-16 3
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Page 1316 of 1503
A/T Gea r Positio n Indicato r
Indicator Inpu t Tes t
SRS component s ar e locate d i n thi s area . Revie w th e
SR S componen t locations , precautions , an d procedure s
i n th e SR S ( sectio n 24 ) befor e performin g repair s o r ser -
vice .
Remov e th e dashboar d lowe r cover , dashboar d lowe r
pa d an d instrumen t panel . Disconnec t th e connecto r
"A " (30P ) fro m th e gaug e assembl y (se e pag e 23-127 ).
Inspec t th e connecto r an d socke t terminal s t o b e sur e
the y ar e al l makin g goo d contact .
I f th e terminal s ar e bent , loose , o r corroded , repai r
the m a s necessary , an d rechec k th e system .
I f th e terminal s loo k OK , mak e th e followin g input
test s a t th e connector .
— If a tes t indicate s a problem , fin d an d correc t th e
cause , the n rechec k th e system .
— If al l th e inpu t test s prov e OK , th e contro l uni t
mus t b e faulty ; replac e it .
CONNECTOR"B "
CONNECTO R "A "
(30P )
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Page 1317 of 1503

WireTes t conditio n
Test: Desire d resul t
Possible caus e if resul t i s no t obtaine d
BLK
YE L
GRY/WH T
LTBLU
GRN
BRN/BL K
GRN/YE L
LT GRN /
WHT
RED/BL K
and RED2
YEL/BL K
RED1
Under al l condition s
Ignitio n switc h O N (II )
Shif t leve r i n positio n
NOTE : Don' t pus h th e
brak e pedal .
Shift leve r i n positio n
Shift leve r i n positio n
Shif t leve r i n positio n
Shift leve r i n positio n
Shift leve r i n positio n
Combinatio n ligh t
switc h O N an d das h
light s brightnes s contro l
dia l o n ful l brigh t
Ignitio n switc h O N (II )
an d shif t leve r i n an y
positio n excep t
Ignitio n switc h O N (II ) Chec
k fo r continuit y t o ground :
Ther e shoul d b e continuity .
Chec k fo r voltag e to ground :
Ther e shoul d b e batter y voltage .
Chec k fo r continuit y t o ground :
Ther e shoul d b e continuity .
Ther e shoul d b e n o continuit y i n an y
othe r position .
Chec k fo r voltag e betwee n th e
RED/BL K an d RED2 terminals :
There shoul d b e batter y voltage .
Chec k fo r voltag e to ground :
Ther e shoul d b e batter y voltag e fo r
tw o second s afte r th e ignitio n switc h
i s turne d O N (II) , an d les s tha n 1 V
tw o second s later .
Chec k fo r voltag e t o ground :
Ther e shoul d b e mor e tha n 11V .
• Poo r groun d (G401 , G402 , G403 )
• A n ope n i n th e wir e
• Blow n No . 5 (1 5 A ) fus e
• A n ope n i n th e wir e
• Fault y A/ T gea r positio n switc h
• Poo r groun d (G401 , G402 , G403 )
• A n ope n i n th e wir e
• Fault y das h light s brightnes s
contro l syste m
• A n ope n i n th e wir e
• Fault y switc h
• Fault y A/ T gea r positio n switc h
• Fault y transmissio n contro l
modul e (TCM )
• A n ope n i n th e wir e
• Fault y EC M an d transmissio n
control modul e (TCM )
• A n ope n i n th e wir e
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Page 1318 of 1503

A/T Gea r Positio n Indicato r
A/T Gea r Positio n Switc h Tes t
SRS component s ar e locate d i n thi s area . Revie w th e
SR S componen t locations , precautions , an d procedure s
i n th e SR S ( sectio n 24 ) befor e performin g repair s o r ser -
vice .
1. Remov e th e cente r consol e pane l an d dushboar d
(se e sectio n 20 ).
2 . Disconnec t th e 12 P an d 2 P connector s fro m th e A/ T
gea r positio n switch .
3 . Chec k fo r continuit y betwee n th e terminal s i n eac h
switc h positio n accordin g t o th e table .
Mov e th e leve r bac k an d fort h a t eac h switc h
position withou t touchin g th e pus h button , an d
chec k fo r continuit y withi n th e rang e o f fre e play .
I f ther e i s n o continuit y withi n th e rang e o f fre e
play , adjus t th e positio n o f th e switc h a s describe d
below .
A/T GEA R POSITIO N SWITC H
View fro m wir e sid e
Adjustment :
1. Shif t t o position , an d loose n th e bolts .
2. Slid e th e switc h i n th e directio n o f positio n [with -
in 2. 0 m m (0.0 8 in) ] unti l ther e is continuit y betwee n
No. 8 an d No . 1 1 terminal s i n th e rang e o f fre e pla y
o f th e shif t lever .
3 . Rechec k fo r continuit y betwee n eac h o f th e termi -
nals.
NOTE :
If adjustmen t i s no t possible , chec k fo r damag e
t o th e shif t leve r deten t and/o r bracket . I f ther e i s
n o damage , replac e th e A/ T gea r positio n switch .
Yo u shoul d b e abl e t o star t th e engin e wit h th e
shif t leve r i n positio n , withi n th e rang e o f fre e
play .
Positio n P
LOCK PI N
BOLT S
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Page 1319 of 1503

A/T Gea r Positio n Switc h
Replacemen t
SRS component s ar e locate d i n thi s area . Revie w th e
SR S componen t locations , precautions , an d procedure s
i n th e SR S sectio n 24 befor e performin g repair s o r ser -
vice .
1 . Remov e th e cente r consol e pane l an d dashboar d
(se e sectio n 20 ).
2 . Disconnec t th e 12 P an d 2 P connector s fro m th e A/ T
gea r positio n switch .
SWITCH SLIDE R (I n |
A/ T GEA R POSITIO N SWITC H
3. Remov e th e tw o positio n switc h mountin g bolts .
4. Positio n th e slide r o n th e ne w switc h t o a s show n
above .
5. Shif t th e shif t leve r t o , the n sli p th e switc h int o
position .
6 . Attac h th e switc h wit h th e tw o bolts .
7. Tes t th e switc h i n th e an d positions . Yo u
shoul d b e abl e t o star t th e engin e wit h th e shif t
lever i n positio n anywher e i n th e rang e o f fre e
play .
8 . Connect the 12 P an d 2 P connectors , clam p th e har -
ness , an d instal l th e dashboar d an d cente r consol e
panel .
Bulb Replacemen t
SRS component s ar e locate d i n thi s area . Revie w th e
SR S componen t locations , precautions , an d procedure s
i n th e SR S sectio n 24 befor e performin g repair s o r ser -
vice .
1 . Remov e th e gaug e assembl y (se e pag e 23-126 ).
2 . Disassembl e th e gaug e assembl y (se e pag e 23-129 ).
3 . Remov e th e bul b fro m printe d circui t boar d B .
PRINTE D CIRCUI T
BOAR D B
BUL B (1.1 2 W )
4. Instal l th e indicato r i n th e revers e orde r o f removal .
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Page 1320 of 1503

Integrated Contro l Uni t
Inpu t Tes t
SRS component s ar e locate d i n thi s area . Revie w th e
SR S componen t locations , precautions , an d procedure s
i n th e SR S sectio n 24 befor e performin g repair s o r ser -
vice .
Remov e th e lef t kic k pane l cover , an d th e rela y holde r
fro m it s bracket , the n disconnec t th e 16- P connecto r
fro m th e integrate d contro l unit . Remov e th e integrate d
contro l uni t fro m th e under-das h fus e box .
Inspec t th e connecto r an d socke t terminal s t o b e sur e
the y ar e al l makin g goo d contact .
I f th e terminal s ar e bent , loose , o r corroded , repai r
the m as necessary , an d rechec k th e system .
I f th e terminal s loo k OK , mak e th e followin g inpu t
test s a t th e connector .
— If an y tes t indicate s a problem , fin d an d correc t th e
cause , the n rechec k th e system .
— If al l th e inpu t test s prov e OK , th e contro l uni t
mus t b e faulty ; replac e it .
NOTE : Differen t wire s wit h th e sam e colo r hav e
bee n give n a numbe r suffi x t o distinguis h the m (fo r
example , YEL1 an d YEL2 ar e no t th e same) .INTEGRATE D
CONTRO L UNI T
16P CONNECTO R
UNDER-DAS H FUS E BO X
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