Page 888 of 1640
Horns
Component Location Index
SRS components are located in this area. Review the
SRS component locations, precautions, and procedures
in the SRS section (24) before performing repairs or ser-
vice.
HORN RELAY
Test, page 23-249
UNDER-HOOD RELAY
BOX A
CABLE REEL
Test, page 23-250
HORN SWITCH
Test, page 23-249
Overhaul, section 17
SECURITY HORNTest, page 23-248
LEFT HORN
Test, page 23-248
RIGHT HORN
Test, page 23-248
SECURITY CONTROL
UNIT
Inpu
t
Test, page 23-320
('94-'96) ('93) ('91-'92)
UNDER-HOOD
FUSE/RELAY BOX
Description
Security Alarm System:
The security alarm system is an anti-theft alarm system. If someone tries to open the trunk, hood or either door without
the ignition key, or if the roof is not fully latched the security control unit senses a signal from the sensors and activates
relays to flash the headlights and sound the horn for about two minutes.ProCarManuals.com
Page 945 of 1640

Security Alarm System
Component Location Index
SRS components are located in this area. Review the
SRS component locations, precautions, and procedures
i
n
the SRS section (24) before performing repairs or ser-
vice.
RIGHT REAR SIDE
MARKER LIGHT
Replacement, page 23-197 PASSENGER'S DOOR KEY
CYLINDER SWITCH
Test, page 23-267
Replacement, section 20
STEREO RADIO/
CASSETTE PLAYER
Terminals, page
23-240
IGNITION
SWITCH
Test, page 23-72
('93-'96) ('91-'92)
IGNITION
KEY SWITCH
Test, page 23-326 ('93-'96) ('91-'92)
UNDER-HOOD
RELAY BOX A
HORN RELAY
Test, page 23-249
BATTERY
Teat, page 23-68 ('93-'96) ('91-'92)
SECURITY HORN
Test, page 23-218 LEFT HEADLIGHT
Replacement page 23-193
LEFT FRONT
PARKING LIGHT
Replacement,
page 23-195
LEFT (LOW) HORN
Test, page 23-248
HOOD SWITCH
Test, page 23-325 ('93-'96) ('91-'92)
RIGHT (HIGH) HORN
Test, page 23-248
RIGHT FRONT
PARKING LIGHT
Replacement,
page 23-195
RIGHT HEADLIGHT
Replacement,
page 23-193
RIGHT FRONT
SIDE MARKER LIGHT
Replacement,
page 23-195 HEADLIGHT
RETRACTOR RELAYS
Test, page 23-190
('93-'96) ('91-'92)
HEADLIGHT RELAY
Test, page 23-189 TAILIGHT RELAY
Test, page 23-190
('93-'96)('91-'92)
UNDER-HOOD
FUSE/RELAY
BOX
DIMMER RELAY
Test, page 23-189
SECURITY
CONTROL UNIT
Input Test,
page 23-320 ('94-'96) ('93) ('91-'92)
PASSENGER'S DOOR
LOCK ACTUATOR
ASSEMBLY
Test, page 23-323
('94-'96) ('93) ('91-'92)ProCarManuals.com
Page 951 of 1640
Security Alarm System
Control Unit Input Test
Remove the glove box, and disconnect the 22-P connec-
tor and 16-P connector from the control unit.
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.
• Different wires with the same color have been given a
number suffix to distinguish them (for example,
YEL/GRN1 and YEL/GRN2 are not the same).
SECURITY
CONTROL UNIT
View from
wire side
Not used
No. Wire
Test condition
Test: Desired result
Possible cause if result is not obtained
22-P
CONNECTOR
16-P CONNECTORProCarManuals.com
Page 953 of 1640
Security Alarm System
Control Unit Input Test
View from
wire side
No.
Wire
Test condition
Test: Desired result
Possible cause if result is not obtained
NSX-T (open top)ProCarManuals.com
Page 1450 of 1640

Security Alarm System
Control Unit Input Test
Remove the glove box and disconnect the 22-P connec-
tor and 16-P connector from the control unit.
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.
Different wires with the same color have been given
a number suffix to distinguish them (for example,
YEL/GRN1 and YEL/GRN2 are not the same). SECURITY
CONTROL UNIT
22-P
CONNECTOR
16-P CONNECTOR
BLU/RED2
BLU/RED3
BRN
GRN/WHT
BRN/WHT
BLK/GRN
GRN/RED
GRN/BLU GRN/YEL1
GRY
GRN/YEL2
YEL
YEL/GRN2
WHT
BLU
LT GRN/RED
RED/YEL
BLU/RED1
LT GRN/WHT
GRN
BLK/YEL
YEL/BLU
View fromwire side
BLU/GRN
BLK/BRN
GRY/WHT
BLU/YEL
BLU/GRN
BLKProCarManuals.com
Page 1452 of 1640
Security Alarm System
Control Unit Input Test (cont'd)ProCarManuals.com
Page 1453 of 1640
Security Alarm System
Ignition Key Switch Test
CAUTION: All SRS wiring harnesses are covered with yellow
outer insulation. Before disconnecting any part of the SRS wire
harness, install the short connectors (see page
24-10).
Replace the entire affected SRS harness assembly it
it has an open circuit or damaged wiring.
1. Remove the dashboard lower cover and knee
bolster pad.
DASHBOARD LOWER
COVER
2. If necessary, remove the knee bolster.
3. Disconnect the 8-P connector from the floor wire
harness.
4. Check switch continuity.
There should be continuity between the No. 8
and No. 7 terminals with the ignition key in-
serted into the ignition key cylinder.
There should be no continuity with the ignition
key removed.
KNEE BOLSTER
KNEE BOLSTER PAD
View from wire sids.
ProCarManuals.com
Page 1632 of 1640
Security Alarm System
Control Unit Input Test
Remove the glove box to disconnect the 22-P connec-
tor and 16-P connector from the control unit.
Make the following input tests at the harness pins.
NOTE:
Recheck the connections between the 22-P con-
nector and the control unit, the 16-P connector
and the control unit, then replace the control unit
if all input tests prove OK.
Several different wires have the same color. They
have been given a number suffix to distinguish
them (for example YEL/GRN1 and YEL/GRN2 are
not the same).
YEL
YEL/GRN2
WHT
BLU
LT GRN/RED
RED/YEL
BLU/RED1
LT GRN/WHT
BLK/YEL
GRN
YEL/BLU
BLU/GRN
BLK/BRN
GRY/WHT
BLU/YEL
BLU/GRN
LT GRN
BLK
View from
wire side
22-P
CONNECTOR
SECURITY
CONTROL UNIT
16-P CONNECTOR
BLU/RED3
BLU/RED2
GRN/WHT
BRN/WHT
BLK/GRN
GRN/RED
GRN/BLU
GRN/YEL1
GRN/YEL2ProCarManuals.com