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Home >> Buick >> 1991 >> Reatta 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Pcm/BCM >> Diagnostic Flow Charts For ECM/Pcm Codes: EO13 To EO69 >> Code EO68, System Problem Using Tech 1 >> Notes
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Code EO68, System Problem Using Tech 1: Notes

The PCM-integrated cruise control system is designed to monitor itself to ensure that the desired cruise position and actual cruise position are equal to each other. Code EO68 will set when actual servo position sensor signal is 12 percent greater than desired servo position sensor signal for 1.5 seconds.