P1524 Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled

P1524 code - When monitored with the engine running, oil temperature is between -10°C (14°F) and 188°C (370.4°F), no active Engine Oil Temperature (EOT) Sensor or Engine Oil Pressure (EOP) Sensor circuit faults, no active Camshaft Solenoid circuit or performance faults.

P1524


Set condition, the engine oil pressure never reaches the calibrated specification to allow the VVT activation. The MIL will illuminate.

Possible causes P1524 code

- Engine oil level low
- Engine oil aerated or contaminated
- Incorrect Engine oil filter
- Insufficient oil pressure due to a mechanical failure in the oiling system
- Engine Oil Pressure sensor
- Powertrain Control Module (PCM)

Diagnostic test P1524 code

Step 1. Check for an active DTC
Diagnose and repair any system voltage DTCs before continuing with this test. Diagnose any repair any engine oil temperature sensor, engine oil pressure sensor or camshaft position selenoid DTCs before continuing with this test. Test drive or operate the vehicle in accordancewith the when monitored and set conditions. With the scan tool,, read DTCs and record on repair order.

Is the DTC active or pending?

Yes, go to step 2.
No, perform the PCM intermittent condition.

Step 2. Engine Oil/Engine mechanical
Turn the ignition off, the following items should be checked before continuing with this procedure. Failure to do so may lead to misdiagnosis.
- LOW ENIGNE OIL LEVEL
- AERATED ENGINE OIL
- INCORRECT ENGINE OIL FILTER (DOES NOT MEET OEM SPECIFICATION)
- DETERIORATED OR DIRTY OIL
- CONTAMINATED ENGINE OIL
- INCORRECT ENGINE OIL VISCOSITY

Were any of the above conditions present?

Yes, repair the engine oiling or mechanical condition (i.e improper oil drain back, oil sludge, damage oil pump, pick up tube or seal, etc)
No, go to step 3.

Step 3. Check the engine oil pressure and engine mechanical condition
Install the applicable adaptor to the oil filter cap and install an oil pressure gauge to the adaptor. Start the engine and allow it to idle, monitor the engine oil pressure reading on the gauge.
If the oil pressure is below 14psi or oscillating excessively, it can cause a delay in cam phaser movement sufficient enough to set a slow response DTC.

Is the oil pressure reading stable and above 14.0 psi?

Yes, go to step 4.
No, repair the engine oiling or mechanical condition (i.e improper oil drain back, oil sludge, damaged oil pump, pick up tube or seal, etc)

Step 4. Check the engine oil pressure sensor rationality
With the scan tool, monitor the EOP sensor reading.

Does the EOP sensor reading on the scan tool match the actual oil pressure reading?

Yes, go to step 5.
No, replace the engine oil pressure sensor.

Step 5. Check related PCM and component connections

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