Fault Conditions

The control modules communicate with each other in a network via a standardized serial communication method - CAN (Controller Area Network). The ECM has registered a fault in the communication on the CAN network. The CAN signal from the throttle unit is missing or not updated. DTC ECM-902A is stored in the ECM.

No substitute values are used. The following actions are taken:

• The accelerator pedal is ignored when braking
• The cruise control cannot be activated
• The engine speed (RPM) is limited using fuel shut off. The maximum permitted engine speed depends on the accelerator pedal (AP) position
• The throttle unit follows the Pulse Width Modulation (PWM) accelerator pedal signal directly, the control signal via CAN is ignored.