Initialization Sequence

The EBCM performs 1 initialization test each ignition cycle. The initialization of the EBCM occurs when 1 set of the following conditions occur:

• The EBCM detects that there is a minimum of 500 RPM from the ECM via a serial data message.
• The brake pedal position sensor is not applied.

OR

Both of the following conditions occur:

• The vehicle speed is greater than 16 km/h (10 mph).
• The stop lamp switch is applied.

The initialization sequence cycles each solenoid valve and the pump motor, as well as the necessary relays, for approximately 1.5 seconds to check component operation. The EBCM sets a DTC if any error is detected. The initialization sequence may be heard and felt while it is taking place, and is considered part of normal system operation.

The EBCM defines a drive cycle as the completion of the initialization sequence.