Honda Acura NSX 1991 Service Manual page 889

Automatic Climate Control
Special Tools .............................
Illustrated Index .........................
Heater-Evaporator Door Positions . . 22- 4
Description ................................
*Wiring/Connector Location ..........
Circuit Diagram ..........................
Troubleshooting
Indicators ..........
Self-diagnosis
Function Selection and Operation
C h e c k ....................................
Symptom-to-Components Chart. 22-14
Control Unit Signals ...................
Troubleshooting Flowchart.. ......
Blower
..............................
Replacement
Recirculation Control Motor
...........................
Replacement
A/C Service Tips and Precautions . . 22-65
*Heater-Evaporator Assembly
...........................
Replacement
Coolant Temperature Sensor
Removal .................................
Evaporator Temperature Sensor
.................................
Removal
Vent Door Control Motor
...........................
Replacement
Mode Control Motor
...........................
Replacement
Air Mix Control Motor
...........................
Replacement
Heater-Evaporator Unit
Disassembly/Reassembly
"DEF" Door Adjustment
"HEAT" Door Adjustment ........
Condenser
Description ................................
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
The NSX includes a driver's side Airbag, located in the steering wheel hub, as part of a Supplemental Restraint
System (SRS). Information necessary to safely service the SW is included in this Service Manual. Items marked *
in this section include, or are located near, SRS components. Servicing, disassembling or replacing these items will
require special cautions and tools and should therefore be done by an authorized Acura dealer.
tal collision, all maintenance must be performed by an authorized Acura dealer.
by unintentional activation of the Airbag.
ed in the steering column, center console, dash, and dashboard lower panel. Do not use electrical test equip-
ment on these circuits.
22-10
22-13
22-l 5
22-l 6
22-63
22-64
22-66
22-68
22-68
22-69
22-70
.......... 22-7 1
......... 22-72
22-72
22-73
Condenser Assembly
Replacement ...........................
Disassembly/Reassembly
Compressor
Description .............................
Replacement ...........................
Compressor Belt Adjustment .... 22-79
Clutch Inspection ....................
Clutch Overhaul ......................
Relief Valve Replacement .........
Component Removal/Replacement
*Climate Control Unit ..............
*In-car Temperature Sensor ..... 22-85
Ambient Temperature Sensor ... 22-86
Sunlight Sensor ......................
Component Tests
In-car Temperature Sensor .......
Ambient Temperature Sensor ... 22-87
Coolant Temperature Sensor .... 22-88
Evaporataor Temperature
...................................
Sensor
Sunlight Sensor ......................
Recirculation Control Motor ...... 22-89
Air Mix Control Motor .............
Vent Door Control Motor .........
M o d e Control Motor
Aspirator Fan ..........................
Relay .....................................
Control Unit Adjustment ..............
A/C System Service
...............................
Discharge
Evacuation .............................
Leak Test ...............................
Charging Procedure .................
Performance Test .......................
Pressure Test .............................
22-74
.......... 22-75
22-76
22-77
22-80
22-8 1
22-82
22-84
22-86
22-87
22-88
22-89
22-90
22-90
................ 22-9 1
22-9 1
22-92
22-92
22-93
22-93
22-94
22-95
22-96
22-98