DTC P051A-11: Crankcase Pressure Sensor "A" Circuit Low Circuit Short to Ground [09/2023 - ]: Description

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The internal sensor in the vacuum sensor assembly detects the air inlet duct internal pressure as a voltage.

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DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	DTC Output from	Priority	Note
P051A-11	Crankcase Pressure Sensor "A" Circuit Low Circuit Short to Ground	The output voltage from the vacuum sensor assembly is below 0.23 V for 3 seconds or more (1 trip detection logic).	Open or short in vacuum sensor assembly circuit Vacuum sensor assembly ECM	Comes on	Engine	A	SAE Code: P051C DTC for Mexico Models: Does not apply

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 [09/2023 - ]

DTC No.	PCV Pressure Sensor 1 Voltage	Malfunction
P051A-11	Approximately 0 kPa [0 psi]	Short in PPC1 circuit to ground Short in PPC1 circuit to E1PC circuit Open in V1PC 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.