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Home >> Ford >> 1994 >> Taurus V6-232 3.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Pinpoint Tests >> DC - Mass Air Flow (MAF) Sensor >> DC20 - Check MAF Circuit Output
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DC20 - Check MAF Circuit Output



- Key "OFF".

- Reconnect Mass Air Flow (MAF) sensor.

- Breakout box installed, Powertrain Control Module (PCM) connected.

- Key "ON", engine running.

- Measure voltage between test pin 50 and test pin 9 at the breakout box.

- Is voltage between 0.36 and 1.50 volts?

Yes -- Replace PCM. Remove breakout box. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)

No -- Replace MAF sensor. Remove breakout box. Reconnect PCM. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)
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