Code P066, Engine Rpm Too High With Cruise Engaged: Notes

Code P066 will set when engine speed is greater than 5975 RPM with cruise engaged. This may occur on slippery pavement, extended wide open throttle acceleration or for some other mechanical problems (such as transaxle slippage). Under these conditions, Code P066 is normal. Vehicle operator should be advised why cruise control de-energized. Clear code, and road test vehicle to verify normal operation.