P066

Cruise Control Circuit:

CIRCUIT DESCRIPTION
This Diagnostic Trouble Code (DTC) will set if engine rpm exceeds 5975 rpm with cruise control engaged. This may occur on icy wet, or slippery pavement, extended wide open throttle acceleration, or for some mechanical problems (such as transaxle slippage). Under these conditions, DTC P066 will set and should be considered normal. The driver should be advised why the cruise disengaged. Clear the DTC and road test vehicle to verify normal operation.

TEST CONDITION
Driver not manually controlling throttle position.

FAILURE CONDITIONS
1. Engine speed 5975 rpm or greater for 0.5 second.
2. Cruise control enabled and engaged.

ACTION TAKEN
Powertrain Control Module (PCM) disables cruise control.