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Beginning Test Function No. 1

Press activation button once for about one second. Using scan tool, read and note Diagnostic Trouble Code (DTC). Check if more than one DTC is stored by pressing activation button once more for about one second. Read and note all DTCs until first code is repeated. SeeCRUISE CONTROL DTCS  table.

CRUISE CONTROL DTCS

DTC Fault
111 No Fault
112  Abnormal Speed Signal
122  Speed Below Minimum/No Signal
211  Voltage Speed/Control Unit Malfunction
212  Vacuum Pump or Regulator Circuit Malfunction