Cruise Control Operation
WARNING: This page is about a different car, the 2014 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The cruise control functions include:
- turning on the cruise control system.
- setting and maintaining the desired vehicle speed.
- accelerating the vehicle speed.
- coasting down to a lower speed.
- resuming the prior vehicle speed.
- turning off the cruise control system.
Hardwired inputs to the PCM are:
- Digital TR sensor
- Stoplamp switch
- Cruise control deactivator switch (integral to the stoplamp switch)
- APP sensor
Hardwired outputs of the PCM are:
- ETB command
The vehicle speed is controlled by the PCM through the ETC subsystem.
The cruise control system provides self-diagnostics. Cruise control is disabled anytime an error is detected in the system. No IPC indicator or message center messages are displayed when faults occur. Fault codes are logged by the PCM or SCCM .
An ETC system fault also causes the cruise control system to be disabled. In this case, an ETC system powertrain malfunction (wrench) warning indicator is displayed.
Additionally, certain conditions cause the cruise control system to deactivate:
- Transmission gear selector is put into a position other than D or OD
- Cruise control set speed is overridden with the accelerator pedal for a period longer than 5 minutes
- Cruise control switch is pressed or stuck longer than 2 minutes
- ABS fault