Component Tests and General Diagnostics

Refer to the quick test and the related pinpoint tests as directed from the quick test, to diagnose the ARC system. Refer to Diagnostic Tests.


Probing directly into the harness connector can damage the terminals and cause intermittent system malfunctions.


Whenever a diagnostic procedure requires testing circuits at the ARC module connector, the Rotunda EEC-IV 60-pin Breakout Box tool No. 014-00322 or equivalent, should be used to facilitate testing.