Description:

This diagnostic trouble code (DTC) is generated when the control software detects that the left brake pedal sensor unit indicates over 2 volts when the brake pedal switch is closed, or less than 1.1 volts when the brake pedal switch is open.

Reaction:

Limited or no function of the left brake pedal sensor unit, affecting braking performance.

Recommendations:

Inspect Left Brake Pedal Sensor Unit:

• Verify the physical condition and operation of the left brake pedal sensor unit.
• Replace the sensor unit if it is malfunctioning.

Check Brake Pedal Switch:

• Inspect the brake pedal switch to ensure it is functioning correctly.
• Replace the switch if it is faulty.

Measure Voltage Signals:

• Use a multimeter to measure the voltage signals from the left brake pedal sensor unit.
• Ensure the voltage readings are within the expected range (over 2 volts when closed, less than 1.1 volts when open).

Inspect Wiring and Connections:

• Check the wiring and connectors associated with the left brake pedal sensor unit for damage or disconnections.
• Repair or replace any damaged wiring or connectors.

Update Control Software:

• Ensure the control software is up-to-date to handle correct voltage signals.

Consult Technical Support:

• If the issue persists, consult technical support for further diagnostic procedures or potential hardware issues.

Note:

Regular inspection and maintenance of the brake pedal sensor units and associated wiring can prevent malfunction issues. Ensuring the sensors and switches are clean and free from debris is crucial for accurate operation.