Control Settings | System Response | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mode Lever | Temp Control | Fan Switch | A/C Button | Recirc Button | Heater Outlet | A/C Outlets | Defrost Outlets | See Remark | ||||
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Important: 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:
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VENT | COLD | OFF | OFF | OFF | No Air Flow | No Air Flow | No Air Flow | -- | ||||
VENT | COLD | 1 | OFF | OFF | No Air Flow | Air Flow | No Air Flow | A | ||||
VENT | COLD | 2 to 5 | OFF | OFF | No Air Flow | Air Flow | No Air Flow | B, C, F, I | ||||
BI-LEVEL | COLD | 2 | OFF | OFF | Air Flow | Air Flow | No Air Flow | A | ||||
HEATER | HOT | 5 | OFF | OFF | Air Flow | No Air Flow | Minimum Air Flow | A, D, G | ||||
BLEND | HOT | 5 | OFF | OFF | Air Flow | No Air Flow | Air Flow | A, G, H | ||||
DEF | HOT | 5 | OFF | OFF | Minimum Air Flow | No Air Flow | Air Flow | A, G | ||||
VENT | COLD | 5 | ON | OFF | No Air Flow | Air Flow | No Air Flow | E | ||||
VENT | COLD | 5 | OFF | ON | No Air Flow | Air Flow | No Air Flow | H, J | ||||
REMARK A - Engagement of the detent must be felt in each mode | ||||||||||||
REMARK B - Progressive blower speed increase must occur between 1, 2, 3, 4, and 5 | ||||||||||||
REMARK C - Listen for an increase or a reduction of air noise | ||||||||||||
REMARK D - Inspect for air flow at side window defogger outlets | ||||||||||||
REMARK E - At room temperature air from the center A/C outlets should feel cold with the blower speed on 5 | ||||||||||||
REMARK F - Temperature from the vent outlets should be the same as the temperature out side the vehicle | ||||||||||||
REMARK G - Temperature from the defroster outlets should be above the temperature outside the vehicle | ||||||||||||
REMARK H - Slight engine flare should be noted as the A/C compressor clutch engages and disengages | ||||||||||||
REMARK I - Barrels and vanes must hold position with the fan on high | ||||||||||||
