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 "AUTO CRUISE" 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 cruise control actuator is activated to operate the system the PCM controls the ETS motor to make a car go at a steady speed you want. Also, while the system is operating, "AUTO CRUISE" indicator lamp in the meter assembly lights up. In case of the cruise control system failure, the symptoms such as acceleration failure and vehicle speed setting failure will occur.
If the RESUME swich signal is switching too frequently or stuck for too long, PCM sets P0567.
Item | Detecting Condition | Possible cause |
DTC Strategy | ● Monitors the switch is switching too frequently or stuck for too long. | ● Poor Connection ● Faulty cruise switch ● Faulty PCM |
Enable Conditions | ● Engine is running ● Ignition voltage ≥ 9V ● Cruise control system type is leared | |
Threshold value | ● Input switch signal is switching too frequently or stuck | |
Diagnosis Time | ● Switching: more than 1 second failure for 300 seconds test ● Stuck: more than 75 seconds failure for 300 seconds test | |
MIL On Condition | ● NO MIL ON(DTC only) |
Item | Resistance(Ω) |
ON/OFF switch | 3.9 kΩ ± 5% |
SET switch | 220 Ω ± 5% |
RESUME switch | 910 Ω ± 5% |
CANCEL switch | 0 Ω ± 5% |
