Honda Acura NSX 1991 Service Manual page 463

Inspection of the A/C signal.
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Turn the blo;er switch ON.
Stop the engine.
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Disconnect the 26P connector
from the control unit.
,
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Start the engine.
Measure the voltage between
A 2 2 a n d
pressor OFF)
Is there battery voltage?
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A/C signal is OK.
Lock-up Control Solenoid Valve A/B
Test
NOTE: Lock-up control solenoid valves A and B must be
removed/replaced as an assembly.
1 . Disconnect the connector from the lock-up control
See Air Conditioner inspection.
(Section 22.)
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A 2 5
Repair open in REDlBLU wire be-
NO
tween A22 terminal and Auto AIC
control unit.
Replacement
Remove the mounting bolts and lock-up control sole-
1 .
noid valve assembly.
NOTE: Be sure to remove or replace the lock-up con-