With Rotunda Super STAR II

The diagnosis for the air suspension consists of the Function Test procedure, Auto Test procedure and the Diagnostic Pinpoint Tests. The Function Test and Auto Test procedures require a Rotunda Super Star II Tester 007-0041A, or equivalent scan tool, connected to the diagnostic connector located on the RH front shock absorber tower.

During the Auto Test procedure, the scan tool will display any diagnostic trouble codes stored in the control module. In general, most diagnostic and service actions will contain the following steps:
1. Refer to the Function Test Procedure to retrieve any stored Diagnostic Trouble Codes (DTC).
2. Refer to the Auto Test Procedures to find current system errors and their DTCs.
3. Refer to Diagnostic Trouble Code Interpretation for DTC table and direction to the correct pinpoint test.
4. Perform Auto Test to verify that all concerns have been corrected.

FUNCTION TEST PROCEDURE
1. Open hood and locate Diagnostic Link Connector (DLC) located on front of RH front shock tower. Install battery charger to provide power during testing.
2. Open luggage compartment and ensure air suspension switch is OFF.
3. Set scan tool mode switch to FAST, set selector switch to EEC/MCU and turn power switch ON. Set HOLD/TEST push button in HOLD position (UP).
4. Turn ignition switch to OFF, then ON. Ensure both doors on vehicle are closed.
5. Connect scan tool to DLC, then press HOLD/TEST button and latch in TEST position.
6. Read and record stored DTCs, then refer to Diagnostic Trouble Code Interpretation for DTC table and direction to correct pinpoint test.
7. Codes for further function tests will be displayed one after the other. To select and run a function test, perform the following steps:

Functions Test Index:

a. When the desired code number appears, release and depress the HOLD/TEST button.
b. Unlatch HOLD/TEST button to end selected test. Re-latch button to re-enter code display function.

AUTO TEST PROCEDURE
1. Open hood and locate Diagnostic Link Connector (DLC) on front of RH front shock tower. Install battery charger to provide power during testing.
2. Open luggage compartment and ensure air suspension switch is ON.
3. Set Super Star II Tester mode switch to FAST, set selector switch to EEC/MCU and turn power switch ON. Set HOLD/TEST push button in HOLD position (up).
4. Turn ignition switch to OFF, then ON. Ensure both doors on vehicle are closed.
5. Connect scan tool to DLC, then press HOLD/TEST button and latch in TEST position (down).
6. Code 10 will be displayed while auto test is running. Any faults detected will stop the test and be displayed on the scan tool.

CAUTION: Do not lean on vehicle or open doors while code 10 is displayed, as this will introduce false errors into the test.

7. When code 12 is displayed, open driver side door, turn steering wheel 1/4 turn in either direction, then close door.
8. Unlatch HOLD/TEST button.
9. Press HOLD/TEST button and read displayed codes.
10. Refer to Diagnostic Trouble Code Interpretation for DTC table and direction to correct pinpoint test.