Control Settings | System Response | ||||||||
|---|---|---|---|---|---|---|---|---|---|
A/C SW | Mode Lever | Temp Control | Fan Switch | Blower Speed | A/C Outlet | Heater Outlets | Defrost Outlets | See Remark | Rear Seat Heat Duct |
OFF | OFF | COLD | LOW | Off | No Air Flow | No Air Flow | No Air Flow | - | None |
OFF | MAX | COLD | LOW | Low | Air Flow | Min Air Flow | No Air Flow | A, I, | Min |
OFF | MAX | COLD | LOW to HIGH | Low to High | Air Flow | Min Air Flow | No Air Flow | B, F | Min |
OFF | VENT | COLD | HIGH to M2 | High to M2 | Air Flow | Min Air Flow | No Air Flow | A, C, G | Min |
OFF | BI-LEVEL | COLD | M2 | M2 | Air Flow | Air Flow | No Air Flow | A | Min |
OFF | HEATER | HOT | HIGH | High | No Air Flow | Air Flow | Min Air Flow | A, D, E | Air Flow |
OFF | BLEND | HOT | HIGH | High | No Air Flow | Air Flow | Air Flow | A, H | Min |
OFF | DEF | HOT | HIGH | High | No Air Flow | Min Air Flow | Air Flow | A, H, I | Min |
ON | VENT | COLD | HIGH | High | Air Flow | No Air Flow | No Air Flow | J | None |
REMARK A: Engagement of the detent must be felt in each mode. | |||||||||
REMARK B: Progressive blower speed increase must occur between LO, M1, M2 and HI | |||||||||
REMARK C: Listen for the reduction of air noise. | |||||||||
REMARK D: Inspect the temperature level for full travel (Hot or Cold). | |||||||||
REMARK E: Inspect for air flow at the side window defogger outlets | |||||||||
REMARK F: At room temperature the air from the center A/C outlets should feel cold with the blower speed on HIGH. | |||||||||
REMARK G: The temperature from the vent outlets should be the same as the temperature outside of the vehicle. | |||||||||
REMARK H: Temperature from the defroster outlets should be above the temperature outside the vehicle. | |||||||||
REMARK I: Slight engine flare should be noted as the A/C clutch engages and disengages. | |||||||||
REMARK J: Barrels and vanes must hold position with the fan on HIGH. | |||||||||
The vehicle A/C must be on for a minimum of 90 seconds prior to performing the tests.
Perform each step of the functional tests with the following conditions in place:
| • | The windows are up. |
| • | The doors are closed. |
