Operation CHARM: Car repair manuals for everyone.

System Response Chart










CJ2 Test Requirements

The following conditions must be met before you can perform the functional checks:

1. The engine must be running.

2. The engine temperature must be at least 63°C (145°F).

3. You must start from the AUTO mode.

The passenger temperature control is over-ridden and AUTO will not be displayed if:

- The driver set temperature of 60°F is selected.

- The driver set temperature of 90°F is selected.

The outside air temperature display is updated when:

- The air temperature is decreasing.

- The air temperature is increasing and the vehicle speed stays between 20 and 45 mph for 90 seconds.

- The air temperature is increasing and the vehicle speed stays above 45 mph for 60 seconds.

When the outside air temperature is less than 35°F, the A/C compressor will not engage.

When the outside air temperature is between 35°F and 45°F, the A/C compressor might not engage.

IMPORTANT: You must begin this test in the AUTO MODE.