P066

Code PO66:

PCM Wiring:

DESCRIPTION:
This code will set if engine speed exceeds 4800 rpm. This may occur on slippery pavement, extended wide open throttle acceleration; or for some mechanical problems (such as transaxle slippage). Under these conditions, Code P066 will set and should be considered normal. The driver should be advised why the cruise disengaged. Clear the code and road test vehicle to verify normal operation.

TEST CONDITIONS:
1. Cruise control enabled.

2. Cruise control engaged.

3. Driver not manually controlling throttle position.

FAILURE CONDITIONS:
1. Engine RPM 4800 or greater for 0.5 second.

ACTION TAKEN:
PCM disengages cruise control.