Initial Inspection and Diagnostic Overview

INSPECTION AND VERIFICATION
1. Verify the customer's concern by operating the steering system while driving to duplicate the condition.
2. Inspect to determine if any of the following mechanical concerns apply:

Mechanical
^ Tire pressure, loose wheels.
^ Loose tie rod ends, inner ball joints.
^ Loose suspension components or ball joints.
^ Loose universal joints.
^ Loose connecting bolts on column intermediate shaft.
^ Loose steering gear assembly.
^ Improper drive belt tension.
^ Binding or misaligned steering column, pump, steering gear.
^ Power steering pump fluid level, hose leak or line restrictions.
Electrical
^ Open AIR SUSPN (30A) fuse.
^ Open 5, (15A) fuse.
^ Circuitry, connections-open, grounding or shorting.
^ Steering wheel rotation sensor.
^ Vehicle speed sensor.
^ Power steering pump actuator valve.
^ EVO control module-controlled.
^ Computer controlled air suspension. Suspension Control ( Automatic - Electronic )

3. Replace broken, glazed or worn drive belts.
4. If inspection reveals obvious concern(s) that can be readily identified, service as required.
5. If the concern(s) remain after the inspection perform the EVO Steering Diagnosis procedure (vehicles without computer controlled suspension) using the Super Star II. Retrieve Diagnostic Trouble Codes (DTCs) and go to diagnosis by symptom. Symptom Related Diagnostic Procedures