Pcm Code P066 - Engine Rpm Too High With Cruise Engaged: Notes

PCM Code P066 will set when engine speed is greater than 4800 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, PCM Code P066 is normal. Vehicle operator should be advised why cruise control de-energized. Clear code, and road test vehicle to verify normal operation.