Verify that there is no engine oil leakage.
- If there is any malfunction, repair or replace the malfunctioning part according to the inspection results.
Inspect the engine oil level. (See ENGINE OIL LEVEL INSPECTION .)
Connect the M-MDS to the DLC-2.
Switch the ignition ON (engine off).
Access the PCM PID/DATA monitor item [ENG_OIL_LVL] using the M-MDS. (See PID/DATA MONITOR INSPECTION .)
Verify that the PID [ENG_OIL_LVL] value and the engine oil amount measured using the dipstick are same.

ENGINE OIL LEVEL SENSOR OUTPUT VALUE SPECIFICATION

Engine	PID [ENG_OIL_LVL] value		Measurable upper limit value of engine oil level sensor
Engine	Dipstick level: MIN	Dipstick level: MAX	Measurable upper limit value of engine oil level sensor
VIN 7	Approx. 49 mm {1.9 in}	Approx. 67 mm {2.6 in}	74 mm {2.9 in}
VIN L & VIN M	Approx. 55 mm {2.2 in}	Outside of measurable range (Reference: Approx. 78 mm {3.1 in})	74 mm {2.9 in}

Courtesy of MAZDA MOTORS CORP.

NOTE:

Due to the structure of the engine oil level sensor, a value exceeding the measurable upper limit value may be detected. If the oil level gauge is the upper limit position or more and the engine oil level sensor output value exceeds the measurable upper limit value, adjust the engine oil level near the middle of the lower and upper limit positions on the dipstick, and then verify the output value of the engine oil level sensor (PID: ENG_OIL_LVL) again.
If it cannot be verified, replace the engine oil level sensor. (See ENGINE OIL LEVEL SENSOR REMOVAL/INSTALLATION .)

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

PID/DATA Monitor Inspection