Pinpoint Tests C: Brake Booster Vacuum Sensor Faults: Notes
WARNING: This page is about a different car, the 2020 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Vehicle Dynamic Systems wiring diagrams, for schematic and connector information.
PPT C PCM DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P0555 | Brake Booster Pressure Sensor Circuit | This DTC sets due to differences between the brake booster mounted vacuum sensor signal and the PCM calculated vacuum level. This DTC does not illuminate any warning indicators nor are there any associated service messages. |
| P0556 | Brake Booster Pressure Sensor Circuit Range/Performance | This DTC sets due to differences between the brake booster mounted vacuum sensor signal and the PCM calculated vacuum level. This DTC does not illuminate any warning indicators nor are there any associated service messages. |
| P0557 | Brake Booster Pressure Sensor Circuit Low | This DTC sets due to differences between the brake booster mounted vacuum sensor signal and the PCM calculated vacuum level. This DTC does not illuminate any warning indicators nor are there any associated service messages. |
| P0558 | Brake Booster Pressure Sensor Circuit High | This DTC sets due to differences between the brake booster mounted vacuum sensor signal and the PCM calculated vacuum level. This DTC does not illuminate any warning indicators nor are there any associated service messages. |
| P0559 | Brake Booster Pressure Sensor Circuit Intermittent | This DTC sets due to differences between the brake booster mounted vacuum sensor signal and the PCM calculated vacuum level. This DTC does not illuminate any warning indicators nor are there any associated service messages. |
| P05FF | Brake Pressure Sensor/Brake Pedal Position Sensor Correlation | This DTC sets if the information from the brake pressure sensor and brake pedal position sensor do not match. This is most likely due to sensor concerns, wiring harness concerns or vehicle communication concerns. |