MechanicDB
Fault Family System: Powertrain (P-Codes) 60 SAE Codes

Cylinder Pressure Sensor Circuit

Diagnostic & Technical Explanation
Code P0395 (Cylinder 1 Pressure Sensor Circuit) sets when the ECM sees an open circuit, out-of-range voltage, or an erratic signal from a direct in-cylinder combustion pressure sensor — a piezoelectric sensor integrated into or replacing a glow plug/injector clamp on some advanced diesel and GDI engines to measure real-time cylinder pressure for closed-loop combustion control. Causes are a failed sensor element from heat-cycling fatigue, a corroded or heat-damaged connector, or chafed wiring in the harness routed near the exhaust/valve cover.

These 60 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 60 times.

Codes in this family (60)

CodeDefinitionRepair coverage
P0395Cylinder 1 Pressure Sensor Circuit4 ranked fixes
P0396Cylinder 1 Pressure Sensor Circuit Range/Performance4 ranked fixes
P0397Cylinder 1 Pressure Sensor Circuit Low4 ranked fixes
P0398Cylinder 1 Pressure Sensor Circuit High4 ranked fixes
P0399Cylinder 1 Pressure Sensor Circuit Intermittent/Erratic4 ranked fixes
P039FCylinder 2 Pressure Sensor Circuit4 ranked fixes
P03A0Cylinder 2 Pressure Sensor Circuit Range/Performance4 ranked fixes
P03A1Cylinder 2 Pressure Sensor Circuit Low4 ranked fixes
P03A2Cylinder 2 Pressure Sensor Circuit High4 ranked fixes
P03A3Cylinder 2 Pressure Sensor Circuit Intermittent/Erratic4 ranked fixes
P03A9Cylinder 3 Pressure Sensor Circuit4 ranked fixes
P03AACylinder 3 Pressure Sensor Circuit Range/Performance4 ranked fixes
P03ABCylinder 3 Pressure Sensor Circuit Low4 ranked fixes
P03ACCylinder 3 Pressure Sensor Circuit High4 ranked fixes
P03ADCylinder 3 Pressure Sensor Circuit Intermittent/Erratic4 ranked fixes
P03B3Cylinder 4 Pressure Sensor Circuit4 ranked fixes
P03B4Cylinder 4 Pressure Sensor Circuit Range/Performance4 ranked fixes
P03B5Cylinder 4 Pressure Sensor Circuit Low4 ranked fixes
P03B6Cylinder 4 Pressure Sensor Circuit High4 ranked fixes
P03B7Cylinder 4 Pressure Sensor Circuit Intermittent/Erratic4 ranked fixes
P03BDCylinder 5 Pressure Sensor Circuit4 ranked fixes
P03BECylinder 5 Pressure Sensor Circuit Range/Performance4 ranked fixes
P03BFCylinder 5 Pressure Sensor Circuit Low4 ranked fixes
P03C0Cylinder 5 Pressure Sensor Circuit High4 ranked fixes
P03C1Cylinder 5 Pressure Sensor Circuit Intermittent/Erratic4 ranked fixes
P03C7Cylinder 6 Pressure Sensor Circuit4 ranked fixes
P03C8Cylinder 6 Pressure Sensor Circuit Range/Performance4 ranked fixes
P03C9Cylinder 6 Pressure Sensor Circuit Low4 ranked fixes
P03CACylinder 6 Pressure Sensor Circuit High4 ranked fixes
P03CBCylinder 6 Pressure Sensor Circuit Intermittent/Erratic4 ranked fixes
P03D1Cylinder 7 Pressure Sensor Circuit4 ranked fixes
P03D2Cylinder 7 Pressure Sensor Circuit Range/Performance4 ranked fixes
P03D3Cylinder 7 Pressure Sensor Circuit Low4 ranked fixes
P03D4Cylinder 7 Pressure Sensor Circuit High4 ranked fixes
P03D5Cylinder 7 Pressure Sensor Circuit Intermittent/Erratic4 ranked fixes
P03DBCylinder 8 Pressure Sensor Circuit4 ranked fixes
P03DCCylinder 8 Pressure Sensor Circuit Range/Performance4 ranked fixes
P03DDCylinder 8 Pressure Sensor Circuit Low4 ranked fixes
P03DECylinder 8 Pressure Sensor Circuit High4 ranked fixes
P03DFCylinder 8 Pressure Sensor Circuit Intermittent/Erratic4 ranked fixes
P2348Cylinder 9 Pressure Sensor Circuit4 ranked fixes
P2349Cylinder 9 Pressure Sensor Circuit Range/Performance4 ranked fixes
P234ACylinder 9 Pressure Sensor Circuit Low4 ranked fixes
P234BCylinder 9 Pressure Sensor Circuit High4 ranked fixes
P234CCylinder 9 Pressure Sensor Circuit Intermittent/Erratic4 ranked fixes
P2352Cylinder 10 Pressure Sensor Circuit4 ranked fixes
P2353Cylinder 10 Pressure Sensor Circuit Range/Performance4 ranked fixes
P2354Cylinder 10 Pressure Sensor Circuit Low4 ranked fixes
P2355Cylinder 10 Pressure Sensor Circuit High4 ranked fixes
P2356Cylinder 10 Pressure Sensor Circuit Intermittent/Erratic4 ranked fixes
P235CCylinder 11 Pressure Sensor Circuit4 ranked fixes
P235DCylinder 11 Pressure Sensor Circuit Range/Performance4 ranked fixes
P235ECylinder 11 Pressure Sensor Circuit Low4 ranked fixes
P235FCylinder 11 Pressure Sensor Circuit High4 ranked fixes
P2360Cylinder 11 Pressure Sensor Circuit Intermittent/Erratic4 ranked fixes
P2366Cylinder 12 Pressure Sensor Circuit4 ranked fixes
P2367Cylinder 12 Pressure Sensor Circuit Range/Performance4 ranked fixes
P2368Cylinder 12 Pressure Sensor Circuit Low4 ranked fixes
P2369Cylinder 12 Pressure Sensor Circuit High4 ranked fixes
P236ACylinder 12 Pressure Sensor Circuit Intermittent/Erratic4 ranked fixes

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here: