Honda Acura NSX 1991 Service Manual page 1314

Supplemental Restraint System (SRS)
-Troubleshooting
Connect test harness A to the SRS unit and check vol-
tages (to ground) according to the chart below.
NOTE:
Turn the Ignition switch ON.
l
Voltages in the chart assume an original "battery
l
voltage" of approximately 12V.
A significantly discharged battery (less than 12V)
l
will result in differeent and possibly false readings.
Do not connect the short connector to the airbag
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connector when
N o r m a l
A Cowl sensor open, or dash
sensor short
9 Cowl sensor short, or dash
sensor open.
G SRS unit ground and
SRS unit mounting bolts
open.
If output signal is not in accordance with the chart first check the contact condition of each connector and terminal
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of the SRS system.
If contact condition is OK, substitute a known-good control unit and perform troubleshooting again.
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23-330
checking these voltages.
vcc s v
5.1 - 6 . 9 4 . 0 - 5 . 5 1 0 . 0 - 1 4 . 0 9 . 0 6 - 1 4 . 0
I
SRS UNIT
T E S T A
.
S A D C G N D
o- 2.0 O - 2 . 0
5 . 1 - 6 . 9
HARNESS
I D C M I