System - Self Test (Initialization)

The Electronic Brake Control Module (EBCM) performs self-diagnostics during initialization.

The EBCM also verifies correct operation of the following components during initialization:
- The motor
- The modulator
- The solenoid
- The relay
- The indicators

The EBCM inspects the wheel speed sensor circuitry
for the following conditions during initialization:
- Open circuits
- Shorts to the ground
- Shorts to voltage

If the EBCM detects a malfunction in itself or in other ABS VI components, the EBCM will perform the following actions:
- Stores a Diagnostic Trouble Code (DTC)
- Turns on one or more of the following indicators, if applicable:
- The amber ABS warning indicator
- The red BRAKE warning indicator

The following indicators will remain on for approximately three seconds with the key in the RUN position:
- The amber ABS warning indicator
- The red BRAKE warning indicator

The following indicators will turn on during cranking and remain on for approximately three seconds after the engine starts:
- The amber ABS warning indicator
- The red BRAKE warning indicator

The initialization performs during engine cranking and engine starting. A slight mechanical noise may be heard during the system initialization. This noise is normal.

If the brake pedal depresses when the engine starts, the system will not initialize. The system will initialize when one of the following actions occurs:
- The pressure leaves the brake pedal
- The vehicle attains a speed of 5 km/h (3 mph).

If brake pedal pressure interrupts the system initialization, a slight movement in the brake pedal may exist.