Functional Test

To aid in determining whether or not the air conditioning, electrical, air, and refrigerant systems are operating properly.

Functional Test

1. Operation of the air conditioning blower at all four speeds with the (mode) in any position except "OFF" and engagement of the compressor clutch would indicate that the electrical circuits are functioning properly. The blower will not operate in any speed with the mode button in the "OFF" position.
2. Operation of the A/C control selector (mode) to distribute air from designated outlets would indicate proper functioning.
3. Perform applicable "Functional Test".

NOTICE: Some air bleed will occur through defroster vent in all modes. Side window defogger outlets should have air flow in all mode selections. All A/C outlets and lap coolers must be checked for the following reasons:

1. Barrel rotation.
2. Vane operation.
3. Barrel and vanes must hold position in high blower.

Remarks:

A. Engagement of detent must be felt in each mode.
B. Noticeable blower speed increase must occur from low to Med 1, Med 2 and high.
C. Listen for changes of air noise due to recirculation door closing.

Cold and Hot Air Check

With mode knob in "DEFROST," temp knob in "HOT," fan switch in "HIGH" temperature from the defroster outlet should be above the temperature outside the vehicle.