Code No. P0524:
Engine Oil Pressure Switch
DIAGNOSIS CONTENT
Engine oil pressure too low
TROUBLE JUDGMENT
Check Conditions
- The engine coolant temperature is above the threshold.
- The engine speed is above the threshold.
Judgment Criterion
- The engine oil pressure switch is indicating a low-pressure state.
Check Conditions
- The engine coolant temperature is below the threshold.
- The engine speed is above the threshold.
Judgment Criterion
- The engine oil pressure switch is indicating a low-pressure state.
PROBABLE CAUSE
- Failed engine oil pressure switch
- Failed electrical harness in engine oil pressure switch circuit
- Failed engine-ECU
(Refer to Symptom Procedure - Engine Oil Pressure Switch System 
.)