P0399 - Cylinder 1 Pressure Sensor Circuit Intermittent/Erratic
P0399 is a generic powertrain diagnostic trouble code indicating Cylinder 1 Pressure Sensor Circuit Intermittent/Erratic. It relates to the Ignition System / Misfire system.
DTC Breakdown (SAE J2012)
| System | Powertrain (P) |
| Type | Generic |
| Subsystem | Ignition System / Misfire |
| Fault Index | 99 |
| Standard | SAE J2012 / ISO 15031-6 |
What does diagnostic code P0399 mean?
The dtc/">diagnostic trouble code P0399 represents Cylinder 1 Pressure Sensor Circuit Intermittent/Erratic. This standard generic code points to a monitored fault condition in the vehicle's Powertrain network.
Detailed diagnostic guides and specific fix procedures for code P0399 are currently being compiled. Always verify check engine warnings with a qualified mechanic.
Frequently Asked Questions about P0399
What does P0399 mean?
The diagnostic trouble code P0399 represents Cylinder 1 Pressure Sensor Circuit Intermittent/Erratic. This standard generic code points to a monitored fault condition in the vehicle's Powertrain network.
What is the system for P0399?
The P0399 code is located in the vehicle's Powertrain network.