Mike's Workshop Manuals: Service manuals for every vehicle

Home >> Cadillac >> 1991 >> Seville Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Tests >> Pcm Code EO12, No Distributor (Tach) Signal >> Test Conditions:

Test Conditions:

Code EO12 is tested anytime cam sensor signals are being received during engine cranking operation (crank input to PCM at system voltage) and Code EO41 is not set.

scientia non olet · About Mike's Workshop Manuals