The cruise control system keeps the vehicle running at a fixed speed until a signal canceling this fixed speed is received. When the main switch is turned on with vehicle in the running mode, the battery voltage is applied to the PCM. When a signal from the control switch is input to the PCM while the vehicle is in state, the PCM controls fuel injection to make a car go at a steady speed you want. Also, while the system is operating, "CRUISE" indicator lamp in the meter assembly lights up.
If the switch signal's voltage is not within the calibrated ranges when PCM checks the switch signal under detecting condition, PCM sets P0564.
Item
Detecting Condition
Possible Cause
DTC
Strategy
Case1
Invalid voltage range check
Open or short in harness
Poor connection or damaged harness
Faulty cruise remote control switch
Case2
Check SET/COAST switch stuck
Case3
Check RES/ACC switch stuck
Enable
Conditions
10V < Battery voltage <16V
Case2 & 3
Cruise control not active
Threshold
Value
0.05 V < Switch voltage(SW) < 0.72 V or 0.85V < SW <2 V or 2.2 V < SW < 4.4 V or 4.8 V < SW
0.72 V < Switch voltage < 0.85V
2.0V < Switch voltage < 2.2V
Diagnostic
Time
31sec.
61sec.
MIL On Condition
-
Resistance(?)
CRUISE MAIN switch
3.9 k? ± 5%
COAST SET switch
220 ? ± 5%
CANCEL switch
0 ? ± 5%
RESUME/ACCEL switch
910 ? ± 5%