Initial Inspection and Diagnostic Overview

1. Verify the customer concern by operating the semi-active ride control system to duplicate the condition.
2. Inspect to determine if one of the following mechanical or electrical concerns apply:
^ Restricted suspension movement
^ Overloaded luggage compartment
^ Open fuses:
^ Power distribution box Fuse 12 (20A)
^ Fuse junction panel Fuse 14 (5A)
^ Loose connectors
^ Corroded connectors

3. If inspection reveals an obvious concern that is readily repaired, correct the concern before continuing with Inspection and Verification.
4. If the concern remains after inspection, connect the New Generation Star (NGS) Tester 418-F048 or equivalent to the Data Link Connector (DLC) indicated beneath the instrument panel to perform DATA LINK DIAGNOSTICS test. If the NGS responds with NO RESPONSE/NOT EQUIPPED for the semi-active ride control module, GO to Pinpoint Test F. If the DATA LINK DIAGNOSTICS test is passed for the semi-active ride control module, retrieve continuous DTCs and execute Self-Test Diagnostics for the semi-active ride control module to retrieve current DTCs.
5. Install battery changer to power system during testing.
6. If self-test is passed and no DTCs are retrieved, GO to the Symptom Chart to continue diagnostics.
7. If DTCs are retrieved, GO to the Semi-Active Ride Control Module (SARC) Diagnostic Trouble Code (DTC) Index to continue diagnostics. REPAIR self-test DTCs first, then continuous DTCs.
8. If the semi-active ride control module cannot be accessed by the NGS, GO to Pinpoint Test F.

The Rotunda Service Bay Diagnostic System (SBDS) 418-F001 or equivalent may also be used to diagnose this system.