Action Taken:
Disengage cruise control. Code set. No service message.
When cruise control is on, system voltage is available at one normally open contact of the SET/COAST and RESUME/ACCEL switches. If cruise control switch is on, this voltage is available to the switches when ignition switch is turned on. If SET/COAST or RESUME/ACCEL switches were stuck on or shorted to power, cruise control operation would begin. To prevent this, Code EO67 will set and cruise control operation is disabled if signal voltage from SET/COAST (circuit No. 84) or RESUME/ACCEL (circuit No. 87) is HI continuously 10 minutes. Cruise control will be disengaged until PCM sees a LO on both of these signals.