No-Start Diagnosis: Notes

WARNING: This page is about a different car, the 2003 Saturn Ion 3, 2003 Saturn Ion 2, and 2003 Saturn Ion 1. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For circuit identification, see WIRING DIAGRAMS .

NOTE: Some vehicles are equipped with anti-theft systems (VATS or PASS-Key(R)) which will not allow vehicle to be started if improper starting procedures or improperly coded ignition keys are used. Both fuel injection and cranking systems will be disabled. Loss of fuel enable signal from anti-theft decoder module should set a Diagnostic Trouble Code (DTC) in PCM memory.

NOTE: For connector terminal and circuit identification, see CONNECTOR IDENTIFICATION in SELF-DIAGNOSTICS - 2.2L ION article.

Definition - No start is defined as engine cranks properly, but does not start. Engine may fire a few times.