For 1990-2009 cars

#### Load Leveler System Check

Step | Action | Normal Result(s) | Abnormal Result(s)*
--- | --- | --- | ---
1 | Turn the ignition to RUN or ACC. | Important: The following results may be different if weight has been added to or removed from the vehicle. After approximately 35-55 seconds, the air compressor runs for 3-5 seconds. |

• | The compressor does not run. Refer to Automatic Level Control Compressor Motor Does Not Activate .

• | The compressor motor runs, then stops (performs the air replenishment cycle) approximately every minute. Refer to Automatic Level Control Compressor Motor Runs, then Stops .

2 | Add approximately 181 kg (400 lb) to the rear of the vehicle. |

1. During (or 7-27 seconds after) the loading of the vehicle, the system exhausts for 1 second, then the compressor motor turns on.
2. Within 1 minute, the rear of the vehicle rises in order to level the vehicle.
3. The compressor turns off.

• | The compressor does not run. Refer to Automatic Level Control Compressor Motor Inoperative .

• | The compressor runs but the vehicle rear does not rise in order to level the vehicle within 1 minute. Refer to Automatic Level Control System Does Not Raise Vehicle .

3 | Remove the weight from the rear of the vehicle. |

1. During (or 7-27 seconds after) the unloading of the vehicle, the system exhausts.
2. The rear of the vehicle lowers the vehicle.
3. The ALC system retains a minimum pressure of 55-97 kpa (8-14 psi).

The ALC system does not exhaust. The rear of the vehicle does not lower. Refer to Automatic Level Control System Does Not Vent to Lower Vehicle .

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.

#### Inflator System Check

Step | Action | Normal Result(s) | Abnormal Result(s)*
--- | --- | --- | ---
1 |

1. Turn the ignition to RUN or ACC.
2. Press the inflator ON button.

The compressor runs for approximately 10 minutes, then the compressor turns off.

• | The compressor does not run. Refer to Automatic Level Control Compressor Motor Inoperative .

• | The compressor runs but does not turn off. Refer to Automatic Level Control Compressor Motor Always On .

2 | Press the inflator OFF button. | The compressor motor stops. | The compressor motor does not stop. Refer to Automatic Level Control Compressor Motor Always On .
3 | Depress the inflator valve core. | During compressor operation, approximately 483 kpa (70 psi) of air pressure is available at the inflator valve. | No or low air pressure is available at the inflator valve. Refer to Automatic Level Control Inflator Fill Valve Inoperative .
* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.