Trouble Symptom 2 - The Set Vehicle Speed Varies Greatly Upward Or Downward; "Surging" (Repeated Alternating Acceleration And Deceleration) Occurs After Setting

Trouble symptom	Probable cause	Remedy
The set vehicle speed varies greatly upward or downward "Surging" (repeated alternating acceleration and deceleration) occurs after setting	Malfunction of the vehicle speed sensor circuit	Repair the vehicle speed sensor system, or replace the part
	Malfunction of ECM	Check input and output signals at ECM