Honda Acura NSX 1991 Service Manual page 1315

Mode A: Cowl sensor open, or dash sensor short.
CAUTION: Disconnect the battery negative termi-
nal and then disconnect the positive terminal. Con-
nect the short connector to the airbag assembly (See
page 23-324).
1. Connect the SRS test harness B between the SRS
unit and SRS main harness 18-P conector.
2. Reconnect the battery cables then check the
resistance between the left dash sensor terminals
B 12 and B 16, and between the right dash sensor ter-
minals B4 and B6.
3 . 8 - 4 . 2 KD
l If resistance is more than 3.8 - 4.2 Kg for either
sensor, go to step 3.
If resistance is less than 3.8-4.2 KQ for either
l
sensor, go to step 4.
4.
SRS MAIN HARNESS
18-P CONNECTOR
SRS TEST HARNESS D
3. Check to make sure there is no continuity between
body ground and each terminal of both dash sensors.
If there is no continuity the SRS unit is faulty.
l
Substitute a known good SRS unit and recheck
the voltages according to the chart on page
23-330.
If there is continuity at any of the terminals, go
l
to step 5.
Connect the SRS test harness D between the dash
sensor and SRS main harness 2-P connector. Check
the resistance between the No. 1 terminal and No.
2 terminal.
2-P CONNECTOR
NOTE: The left and right sensors cannot be checked
at the same time.
DASH SENSOR
No. 2
3 . 8 - 4 . 2 KO
23-331