Failure of the component

The sole function of the accelerator-pedal module is to relay information regarding driver demand. It does not directly intervene in the operation of any other actuator. The engine-management control unit must ensure that the vehicle reverts to a safe and secure condition should the sensor signals fail.

If the component fails, the following behavior is to be expected:

• Signal failure from one sensor
  • Fault entry in the engine control unit
  • Check Control message
  • Engine reverts to operation in its emergency limp-home mode (vehicle power is electronically limited, continued driving possible but with restrictions)
• Failure of both sensor signals
  • Fault entry in the engine control unit
  • Check Control message
  • Engine runs in emergency mode (continued driving is not possible, engine remains at idle)