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
Throttle position (tp) sensor inspectionMazda 6 Service Manual: Panel Maintenance
If a panel becomes soiled, wipe it off with a soft cloth soaked in clean water
and thoroughly wrung out.
If some areas require further cleaning, use the following procedure:
1. Wipe the soiled area with a soft cloth soaked in a mild detergent (approx.
5 %) diluted with water.
2. Wipe off the ...
Mazda 6 Service Manual: Air mix actuator inspection
1. Connect battery positive voltage to terminal D or F and ground to terminal
F or D of the air mix actuator.
2. Verify that the air mix actuator operates as shown below.
If not as specified, replace the air mix actuator.
e
3. Verify that the resistance between the terminals of the ...