E064

Cruise Control Circuit:

DESCRIPTION:

Code E064 is designed to set when the vehicle speed is increasing at an extremely rapid rate (wheelspin). It is a protective measure so that the wheels will not be under cruise control when on ice. Code E064 sets when vehicle speed increases greater than 16 MPH in one second with the cruise engaged. If code E064 is set, cruise will disengage and code E064 will store in memory - NO TELLTALES ARE ILLUMINATED.

Most occurrences of code E064 are caused by wheel spin due to icy or wet conditions. If code E064 is found and no other cruise control faults exists, clear codes and road test. If code E064 sets without wheelspin occurring, see PCM/ECM REPLACEMENT CHECK, CHART C-1.

TEST CONDITIONS:

1. Cruise control enabled.
2. Cruise control engaged.

FAILURE CONDITIONS:

Vehicle speed increases more than 4 MPH in .25 second.

ACTION TAKEN:

1. Disengage cruise control.
2. Code set. No service message.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, CLEAR CODES AND VERIFY OPERATION