DTC P0103: Mass Or Volume Air Flow A Circuit High
WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2010 Mercury Mountaineer, 2010 Mercury Milan, 2010 Mercury Mariner, 2010 Mercury Grand Marquis, and 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0103: MASS OR VOLUME AIR FLOW A CIRCUIT HIGH
| Description: | The mass air flow (MAF) sensor circuit is monitored by the powertrain control module (PCM) for high air flow (or voltage) input through the comprehensive component monitor (CCM). If during ignition on, engine off, or ignition on, engine running, the air flow (or voltage) changes above a maximum calibrated limit, the test fails. | ||
| Possible Causes: |
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| Diagnostic Aids: | A MAF PID reading greater than 4.79 volts during KOER indicates a hard fault. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST DC . | ||