Air Suspension System

DIAGNOSTIC TROUBLE CODE CHART

C1713/13-C1793/93:

C1725/21-C1742/42:

C1751/51-C1787/87:

C1779/79-C1788/88:

HINT:
- Inspect the fuse before inspecting the suspected areas as shown in the chart.
- If no abnormality is found when the parts are inspected, inspect the suspension control ECU.
- If a trouble code is displayed during the DTC check, check the circuit listed for that code.

HINT:
- *1: For codes marked with a "Comes on" in the "OFF Indicator Light" column, the height control indicator light blinks at 1 second intervals.
- *2: The codes marked with a "DTC stored" in the "Memory" column are stored in the memory even when the ignition switch is OFF, but the codes marked with "-" are not.
- *3: Height control OFF indicator light blinks when the vehicle speed is at 3 km/h (1.9 mph) or higher.
- *4: Since the relief pressure of the compressed air is 980 kPa (10 kgf*sq.cm, 142 psi), if the vehicle height control is attempted on a steeply sloping road, when the vehicle is overloaded, or when the vehicle is jacked up with the engine running, code "C1751/51" may be output and the vehicle height control may be suspended (This is not abnormal). In this case, however, the vehicle height operation is resumed approx. 10 min. after the ignition switch is turned ON after the ECU detects the first error. If ECU detects another error , it takes 70 minutes until the vehicle height control is resumed.