Acura 2002 RSX Service Manual page 1122

Climate Control
A/C Pressure Switch Circuit Troubleshooting (cont'd)
6. Beconnect the Ay'C pressure switch 2P connector.
7. Disconnect the climate control unit 30P connector.
8. Turn the ignition switch ON (ll).
9. Measure the voltage between the No. 24 terminal
of the climate control unit 30P connector and bodv
grou nd.
CLIMATE CONTROL UNIT 3OP CONNECTOR
Wire side of female terminals
ls thete battery voltage?
YES-Check for loose wires or ooor connections at
the climate control unit 30P connector and at the
A,/C pressure switch 2P connector. lf the
connections are good, substitute a known-good
climate control unit, and recheck. lf the symptom/
indication goes away, replace the original climate
control unit,I
NO Repair open in the wire between the climate
control unit and the A/c pressure switch.l
21-38
1 0 .
1 1 .
Make sure the A,/C switch is OFF.
Measure the voltage between the No. 9 terminal of
under-dash fuse/relay box connector F { 12P) and
body ground with the under-dash fuse/relay box
connectors connected.
UNDER.DASH FUSE/RELAY BOX CONNECTOR F (12P)
Wire side of female terftinals
ls there battery voltage?
YES - Repair open in the wire between the
under-dash fuse/relay box and the Ay'C pressure
switch.l
NO- Refer to the multiplex control system (see
page 22-175l.a
Check for proper Ay'C system pressure {see page
21-64]..
ls the pressure within specif ications?
YES- Replace the Ay'C pressure switch.l
NO - Repair the IVC pressure problem.I
12.
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2 3
4 5
6 1
E
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10
t l