Auto Test Procedure

Locate air suspension switch on left side of trunk and turn to OFF position. Connect battery charger to vehicle during testing as compressor operation may deplete battery power.
Connect New Generation Star (NGS) tester to diagnostic connector on the front of right front shock tower. Select AIR SUSPENSION AUTO TEST from scan tester menu. Ensure doors are closed and trunk is open.
Turn air suspension switch in trunk to OFF then ON position. Turn ignition switch to RUN position.

NOTE: DTC 10 will display indicating Auto Test is running. Any faults discovered will stop test and will be displayed on NGS tester.

When DTC 12 is displayed, open driver's door and turn steering wheel 1/4 turn in both directions. Exit vehicle and close driver's door. Open and close passenger's door. Press trigger on NGS tester to continue test.
Read displayed DTCs. If DTC 11 is displayed, vehicle has passed Auto Test. If other DTCs are displayed system faults exist and need to be serviced. If unable to enter Auto Test, perform TEST A.

DTC DESCRIPTION CHART

DTC	Description
10	Auto test in progress
11	Auto test passed
12	Perform manual tests
15	No faults stored in memory
18	Control Module Detects Low Battery Voltage
19	Control Module Detects High Battery Voltage
20	Control Module Memory Error 2. Replace Control Module
25	Air Suspension Height Sensor Supply Not 5 Volts
29 (1996) 29 (1997)	Two Door Cycles Not Detected During Test
35	EVO Power Steering Control Valve Actuator Concern
45	Steering Rotation Not Detected
50	LH Front Air Suspension Height Sensor Signal Out Of Range
55	RH Front Sir Suspension Height Sensor Signal Out Of Range
60	LH Rear Air Suspension Height Sensor Signal Out Of Range
70	Vent Solenoid Valve
75	Compressor Relay Control Circuit
80	LH Front Spring Solenoid Valve
85	RH Front Spring Solenoid Valve
90	LH Rear Spring Solenoid Valve
95	RH Rear Spring Solenoid Valve
98	Compressor Run Time Exceeded
99	Unable To Detect Raising or Lowering Of One Or More Corners