6 V6-3.0L (2007)
Air Flow Meter/Sensor: Testing and Inspection
MASS AIR FLOW (MAF) SENSOR INSPECTION[AJ]
NOTE: Perform the following inspection only when directed.
Visual Inspection
1. Visually inspect for the following on the MAF/IAT sensor.
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Damage
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Cracks
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Bent terminals
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Terminal rust
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If any of the above are found, replace the MAF/IAT sensor.
MAF Rate and Load Value
Specification
NOTE: The scan tool shows the MAF rate and load value.
Circuit Open/Short Inspection
1. Disconnect the PCM connector.
2. Inspect the following harnesses for open or short circuit. (Continuity check)
Open circuit
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MAF/IAT sensor terminal A and main relay terminal C
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MAF/IAT sensor terminal B and PCM terminal 1 P
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MAF/IAT sensor terminal C and PCM terminal 1AK
Short circuit
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MAF/IAT sensor terminal A and body ground
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MAF/IAT sensor terminal B and power supply
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MAF/IAT sensor terminal C and power supply
