VALVE GP-BRAKE CONTROL 4855146 - Caterpillar

The engine is running and both of the following conditions exist:
The status of the service brake pedal position switch 1 indicates that the brake pedal has been depressed.
The status of the service brake pedal position switch 2 indicates that the pedal has been released.System Response: The diagnostic code is logged into memory only if the engine is running. This diagnostic code will prevent cruise control, PTO operation, or idle operation. The check engine lamp will not illuminate for this diagnostic code.Possible Performance Effect: The engine will disengage or the engine will not allow the setting of the cruise control, the PTO, or the idle speed.Troubleshooting:Test Step 1. Perform the following diagnostic procedure: "Service Brake Pedal Position (Switch 1) Circuit -Test"Results:
OK - STOP