LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2024 >> NX 250 FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 127 (Engine Control System - Diagnostic Codes (P0460-P0604)) >> SFI System >> DTC P051A-15: Crankcase Pressure Sensor "A" Circuit High Circuit Short to Battery or Open [11/2021 - ] >> Description

DTC P051A-15: Crankcase Pressure Sensor "A" Circuit High Circuit Short to Battery or Open [11/2021 - ]: Description

WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P051A-11.

Refer to DESCRIPTION 

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note
P051A-15 Crankcase Pressure Sensor "A" Circuit High Circuit Short to Battery or Open The output voltage from the vacuum sensor assembly is higher than 4.66 V for 3 seconds or more (1 trip detection logic).
  • Open or short in vacuum sensor assembly circuit
  • Vacuum sensor assembly
  • ECM
Comes on SAE Code: P051D

HINT: 

When a DTC is output, check the Data List item "PCV Pressure Sensor 1 Voltage" using the GTS.

Refer to DATA LIST / ACTIVE TEST [11/2021 - 03/2023] , or refer to DATA LIST / ACTIVE TEST [03/2023 - 03/2024] , or refer to DATA LIST / ACTIVE TEST [03/2024 - ]

DTC No. PCV Pressure Sensor 1 Voltage or PCV Pressure Sensor 2 Voltage Malfunction
P051A-15 120 kPa [17.4 psi] or higher
  • Short in V1PC circuit to PPC1 circuit
  • Open in PPC1 circuit
  • Open in E1PC circuit

If the Data List displays a normal value, the normal value may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.