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Home >> Cadillac >> 1994 >> DeVille Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.9L >> Diagnostic Parameters >> Exiting Diagnostics

Exiting Diagnostics

To exit diagnostic mode, depress AUTO or DEFOG button or turn ignition switch off for 10 seconds. Temperature setting will reappear in display panel. Turning off ignition switch will not clear stored PCM trouble codes.