Mazda 6 manuals

Mazda 6 Service Manual: Mass air flow (maf) sensor inspection

Mazda 6 Service Manual / Fuel and emission control systems / Control system / Mass air flow (maf) sensor inspection

Voltage Inspection

Note

1. Visually inspect for the following on the MAF sensor.

- If any of the above are found, replace the MAF sensor.

- If the MAF PID value is out of specification, carry out the Circuit Open/Short Inspection.

Circuit Open/Short Inspection

1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION.)


2. Disconnect the MAF sensor connector.

3. Inspect the following wiring harnesses for open or short. (Continuity check)

Open circuit

- MAF sensor terminal A (harness-side) and main relay terminal C (harness-side)

- MAF sensor terminal B (harness-side) and PCM terminal 2AC (harness-side)

- MAF sensor terminal C (harness-side) and PCM terminal 1P (harness-side)

Short circuit

- MAF sensor terminal A (harness-side) and body GND

- MAF sensor terminal C (harness-side) and power supply

- MAF sensor terminal C (harness-side) and body GND

- MAF sensor terminal B (harness-side) and power supply

Intake air temperature (iat) sensor inspection
Resistance Inspection Note Perform the following inspection only when directed. 1. Disconnect MAF/IAT sensor. 2. Measure the resistance between the MAF/IAT sensor terminals D and E using an ...

Throttle position (tp) sensor inspection
Note Perform the following inspection only when directed. Resistance Inspection 1. Perform the following test only when directed. If as specified but TP PID value is out of specification, ...

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