Page 1369 of 1503

Cancel Unit Input Test
1. Remove the steering column covers. Disconnect the
10P connector from the turn signal cancel unit.
2. Inspect the connector terminals to be sure they are
all making good contact.
If the terminals are bent, loose or corroded, repair
them as necessary, and recheck the system.
If the terminals look OK, make the following input
tests at the connector.
— If any test indicates a problem, find and correct
the cause, then recheck the system.
— If all the input tests prove OK, the control unit
must be faulty; replace it.
10P CONNECTOR
TURN SIGNAL
CANCEL UNIT
Terminal
Test condition
Test: Desired result
Possible cause if result is not obtained
C10
(BLK)
Under all conditions
Check for continuity to ground:
There should be continuity.
• Poor ground (G401, G402, G403)
• An open in the wire
C1
(GRY/RED)
Ignition switch on (II)
Check for voltage to ground:
There should be battery voltage.
• Blown No. 5 (15 A) fuse
• An open in the wire
C5
(PUR)
Headlight switch
Check for voltage to ground:
There should be approx. 5 volt.
• Faulty headlight switch or taillight
relay
• An open in the wire
C2
(BRN)
Turn signal switch in
right position
C6
(GRY)
Check for continuity between the C2
and C6 terminals:
There should be continuity.
• Faulty turn signal switch
• An open in the wire
C2
(BRN)
Turn signal switch in left
position
C9
(GRN/BLK)
Check for continuity between the C2
and C9 terminals:
There should be continuity.
• Faulty turn signal switch
• An open in the wire
C3
(ORN)
Under all conditions
C4
(WHT)
Check for continuity between the C3
and C4 terminals:
There should be continuity.
• Faulty cancel solenoid
• An open in the wire
C7
(BLU/YEL)
Connect the C1 terminal
to the C7 terminal, then
turn the ignition switch
ON
(II).
The right turn signal lights should
come on.
• Blown bulb
• Faulty turn signal/hazard relay
• Poor ground (G301, G401, G402,
G403, G551)
• An open in the wire
C8
(BLU/GRN)
Connect the C1 terminal
to the C8 terminal, then
turn the ignition switch
ON
(II).
The left turn signal lights should
come on.
• Blown bulb
• Faulty turn signal/hazard relay
• Poor ground (G301, G401, G402,
G403, G551)
• An open in the wireProCarManuals.com
Page 1374 of 1503

Dash Lights Brightness Control
Control Unit Input Test
1. Disconnect the 7P connector from the control unit.
2. Inspect the connector and socket terminals to be sure
they are all making good contact.
If the terminals are bent, loose or corroded, repair
them as necessary, and recheck the system.
If the terminals look OK, make the following input
tests at the connector.
— If any test indicates a problem, find and correct
the cause, then recheck the system.
— If all the input tests prove OK, the control unit
must be faulty; replace it.
BLK
DASH LIGHTS
BRIGHTNESS
CONTROL UNIT
7P CONNECTOR
View from wire side
RED/BLK
Terminal
Test condition
RED/WHT
Test: Desired result
RED
Possible cause if result is not obtained
BLK
RED/BLK
RED
RED/GRN
and
RED/WHT
Under all conditions
Headlight switch ON
Headlight switch ON
Adjusting dial rotating
Check for continuity to ground:
There should be continuity.
Check for voltage to ground:
There should be battery voltage.
Attach to ground: The dash lights
should come on full bright.
Check for resistance between the
RED/GRN and RED/WHT terminals:
It should vary from 0 to 20,000
ohms as the dial is rotated.
• Poor ground (G401, G402, G403)
• An open in the wire
• Blown No. 38 (15 A) fuse
• Faulty taillight relay
• Faulty headlight switch
• An open in the wire
• An open in the RED/BLK or RED
wire
• Faulty dash lights brightness con-
troller
• An open in the wire
RED/GRNProCarManuals.com
Page 1376 of 1503
1. Remove the dash lights brightness controller from
the instrument panel trim (see previous page).
2. Measure resistance between A and B terminals
while rotating the adjusting dial. Resistance should
vary from 0 to 20,000 ohms as the dial is rotated.
NOTE: Resistance will vary slightly with temperature.
HEADLIGHT
RETRACTOR SWITCH
ADJUSTING
DIAL
DASH LIGHTS
BRIGHTNESS
CONTROLLER
Controller Light Bulb Replacement
1. Remove the dash lights brightness controller.
2. Turn the socket 45° counterclockwise to remove it.
BULB (0.84 W)
Dash Lights Brightness Control
Controller TestProCarManuals.com
Page 1379 of 1503
Removal
CAUTION: Be careful not to damage the center air vent
or clock.
1. Pull the clock out with your fingers (if necessary, use
a screwdriver).
2. Disconnect the 4P connector from the clock.
4P CONNECTOR
CENTER AIR VENT
Terminals
Terminal Wire Connects to
A
B
C
D
BLK
RED/BLK
WHT/YEL
YEL
Ground
Lights-on signal
Constant power (Time
memory)
IG1 (Main clock power supply)
23-233
CLOCKProCarManuals.com
Page 1385 of 1503

Stereo Sound System
Unit Terminals
For MAST
ANTENNA
DIN CONNECTOR
(for CD CHANGER)
For WINDOW
ANTENNA
Terminal Wire
Connects to
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
WHT
WHT
RED/BLK
WHT/YEL
YEL/RED
PNK/WHT
WHT
WHT
ORN
ORN
ORN/WHT
BLK/BRN
BLK/LT GRN
BLK
ORN
ORN
Passenger's door speaker amplifier
Driver's door speaker amplifier
Lights-on signal
Constant power (Tuning memory)
ACC (I) (Main stereo power supply)
Radio switched power (To antenna and
relay)
Foot well bass speaker (Driver's )
Foot well bass speaker (Passenger's )
Passenger's door speaker amplifier
Driver's door speaker amplifier
Cellular phone mute signal
Security (IN)
Security ground (G404)
Ground (G401, G402, G403)
Foot well bass speaker (Driver's )
Foot well bass speaker (Passenger's )
Power Amplifier Relay Test
1. Remove the power amplifier relay from under-hood
relay box B.
2. Check continuity at the relay terminals.
There should be continuity between the C and D
terminals.
There should be continuity between the A and B
terminals when power and ground are connect-
ed to the C and D terminals.
There should be no continuity between the A and
B terminals when power is disconnected.ProCarManuals.com
Page 1453 of 1503
M: NSX- T (ope n top )
LEF T FRON T
SID E MARKE R LIGH T
Replacement , pag e 23-19 7
RETRACTABL EHEADLIGHTCONTROL UNI TInpu t Test ,
pag e 23-18 0
ENGIN E COMPARTMEN T LI D SWITC H
Test , pag e 23-32 7
TRUN K LATC H SWITC H
Test , pag e 23-32 5
TRUN K KE Y CYLINDE R
SWITC H
Test , pag e 23-32 6
ROO
F LOC K
SWITCH*
1
Test , pag e 23-15 6
SECURIT Y INDICATO R
Replacement , pag e 23-32 6
DRIVER' S DOO R KE Y CYLINDE R
SWITC H
Test , pag e 23-26 8
Replacement , sectio n 2 0
TAILLIGHTS
Replacement , pag e 23-19 8
DRIVER' S DOO R LOC K
ACTUATO R ASSEMBL Y
Test , pag e 23-32 5
Replacement , sectio n 2 0
LEFT REA R SID E
MARKE R LIGH T
Replacement , pag e 23-19 9
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Page 1454 of 1503

Security Alar m Syste m
Descriptio n
This syste m is activate d automaticall y 1 5 second s afte r everythin g ha s bee n close d an d locked . Th e securit y alar m syste m
indicato r ligh t locate d o n th e driver' s doo r pane l wil l flas h afte r th e door s ar e properl y locked .
I f an y o f th e followin g condition s occur , th e horn s wil l sound , th e headlight s wil l po p u p an d flash , an d th e sid e marke r
lights , parkin g light s an d taillight s wil l flas h fo r abou t tw o minutes , o r unti l th e syste m is disarme d b y unlockin g eithe r
doo r fro m th e outsid e wit h th e key .
Doo r i s opene d forcibly .
Engin e compartmen t li d i s opened .
Trun k li d i s opene d withou t usin g th e key .
Hoo d i s opened .
Roo f i s unlatche d (NSX- T "ope n top") .
Flowchar t o f th e securit y alar m syste m operation : Batter
y terminal(s ) i s (are ) remove d an d reconnected .
Batter y circui t ar e bypasse d b y breakin g th e ignitio n
switch .
Hood/engin e compartmen t lid/trun k li d opene r o r roo f
releas e leve r (NSX- T "ope n top" ) i n th e vehicl e i s
operated .
Remove th e ke y fro m th e ignitio n switc h
• Ignitio n ke y switc h OF F
Clos e al l th e doors , hood , engin e com -
partmen t lid , an d trun k lid . Th e roo f ca n
b e unlatche d o r latched .
NOTE : Bot h roo f loc k switche s hav e t o
b e i n th e sam e position .
• Bot h doo r switche s OF F
• Engin e compartmen t li d switc h OF F
• Hoo d switc h OF F
• Trun k li d switc h OF F
• Bot h roo f loc k switche s OF F o r O N
(NSX- T "ope n top" )
Lock th e driver' s o r passenger' s doo r fro m th e out -
sid e b y usin g th e key .
• Doo r loc k kno b switche s OF F
• Doo r ke y cylinde r switc h OF F
(PREARMED )
15 se c passed ?
The securit y alar m syste m is armed ,
t o pag e 23-31 5 Th
e securit y alar m syste m is disarmed .
Doo r switc h (Driver/Passenger ) O N
Doo r loc k kno b switc h O NTrun k li d switc h O NIgnitio n ke y switc h O NOnl y on e o r bot h roo f loc k switche s O N(NSX- T "ope n top" )From pag e ( 23-315 )
Indicato r start s flashing .1 se c O N / 1 se c OF F
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Page 1493 of 1503

Supplemental Restrain t Syste m (SRS )
Cable Ree l Remova l
Store a remove d airba g assembl y wit h th e
pa d surfac e up . I f the airba g i s improperl y store d fac e
down , accidenta l deploymen t coul d prope l th e uni t wit h
enoug h forc e t o caus e seriou s injury .
CAUTION :
Carefully inspec t th e airba g assembl y befor e install -
in g it . D o no t instal l a n airba g assembl y tha t show s
sign s o f bein g droppe d o r improperl y handled , suc h
as dents , crack s o r deformation .
Always kee p th e shor t connector s (RED ) o n th e air -
bag s whe n th e harnes s i s disconnected .
D o no t disassembl e o r tampe r wit h th e airba g
assembly .
1. Disconnec t th e batter y negativ e cabl e an d the n th e
positiv e cable .
2 . Befor e disconnectin g an y par t o f th e SR S wir e
harness , instal l th e shor t connector s (RED ) (se e pag e
24-10 ).
3 . Mak e sur e th e wheel s ar e aligne d straigh t ahead .
4. Remov e th e dashboar d lowe r cover , the n discon -
nect th e foo t ligh t connecto r an d lights-o n chim e
connecto r fro m th e dashboar d lowe r cover .
FOOT LIGH TCHIMEDASHBOAR DLOWER COVE R
5. Remov e th e colum n covers .
UPPER COLUM N COVE R
LOWE R
COLUM N COVE R
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