1. Install the manifold gauge.
2. Verify the high-pressure side reading of the manifold gauge.
3. Measure the terminal voltage at PCM terminals 2BB, 2AX and 2AJ
4. Using the graph below, measure and verify the terminal voltage at 2AX.
5. Follow the PCM inspection when measuring the other terminal voltages..
Terminal 2BB: Approx. 5 V (Ignition switch on)
Terminal 2AJ: 1.0 V or less
If the each voltage is not normal, inspect the related wiring harness.
If there is any malfunction, replace the related wiring harness.
If wiring harness is normal, replace the refrigerant pressure sensor.

Refrigerant Pressure Sensor Inspection [Full Auto Air Conditioner]
Refrigerant Pressure Sensor Removal/Installation [Full Auto Air Conditioner]Magnetic Clutch Disassembly/Assembly [Manual Air Conditioner]
1. Disassemble in the order indicated in the table.
1
Bolt
(See Bolt Removal/Installation Note.)
2
Pressure plate
3
Shim
(See Shim Installation Note.)
4
Snap ring
(See Snap Ring ...
A/C Unit
Outline
The A/C unit which integrates the cooling and heater units has been adopted.
Construction
The A/C unit consists of the following parts.
Operation
Air Mix Door Operation
The air mix door, installed in the A/C unit, controls HOT or COLD position,
depend ...
Vacuum Pump Removal/Installation
1. Remove the plug hole plate..
2. Remove the battery..
3. Set the PCM wiring harness out of the way.
4. Disconnect the vacuum hose from the vacuum pump..
5. Remove in the order shown in the table.
6. Install in the reverse order of removal.
1
Vacuum hose
...