Retrieving and Clearing DTCs

Test 1

Test 1 is used in checking the rear suspension.

Test 2

Test 2 is used in checking the right front suspension.

Test 3

Test 3 is used in checking the left front suspension.


During tests 1 through 3, the following steps occur:
1. The affected portion of the vehicle will raise for 15 seconds, then continue raising an additional 15 seconds (30 seconds total maximum) or until a ``Vehicle High'' signal or illegal sensor reading is received from the appropriate height sensor.
2. The affected portion of the vehicle will lower for 30 seconds or until a ``Vehicle Low'' signal or illegal sensor reading is received from the appropriate height sensor.
3. The affected portion of the vehicle will raise for 30 seconds or until a ``Vehicle Trim'' signal or illegal sensor reading is received from the appropriate height sensor.

If the expected signal is not received within 30 seconds (total maximum), the test will stop and the warning light will glow continuously. If an improper sensor reading is obtained, the test will stop and the warning light will flash rapidly. The failed test may then be repeated by closing or opening the car door, or the next test may be started by opening and closing the car door twice within 15 seconds.

Test 4

During test 4, the compressor is cycled On and Off at .25 Hz. The compressor is limited to a maximum of 50 cycles.

Test 5

The compressor vent solenoid is cycled (open and closed) at 1 Hz.

Test 6

Left front solenoid is cycled (open and closed) at 1 Hz and the compressor vent solenoid is opened. As the test progresses, the left front of the vehicle will drop slowly.

Test 7

Right front solenoid is cycled (open and closed) at 1 Hz and the compressor vent solenoid is opened. As the test progresses, the right front of the vehicle will drop slowly.

Test 8

Right rear solenoid is cycled (open and closed) at 1 Hz and the compressor vent solenoid is opened. As the test progresses, the right rear of the vehicle will drop slowly.

Test 9

Left rear solenoid is cycled (open and closed) at 1 Hz and the compressor vent solenoid is opened. As the test progresses, the left rear of the vehicle will drop slowly.

Test 10

Disconnecting the diagnostic lead, depressing the brake pedal or turning ignition Off will return the module from diagnostics to the normal operating mode.

Allow time for vehicle to return to proper height, the turn ignition switch to Off position. Remove diagnostic ground lead in luggage compartment.