P1100 - Mass Air Flow Sensor Circuit Intermittent
DTC DESCRIPTION P1100 - MASS AIR FLOW SENSOR CIRCUIT INTERMITTENT
| Description: | This DTC sets when the PCM has detected a sudden input change in the MAF sensor circuit through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in ignition ON, engine running, the PCM detects an input change beyond the minimum or maximum calibrated limit, a continuous memory DTC is stored. | ||
| Possible Causes: |
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| Diagnostic Aids: | While accessing the MAF PID on the scan tool, lightly tap on the MAF sensor or wiggle the MAF sensor connector and harness. If the MAF PID suddenly changes, an intermittent fault is indicated. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test DC. | ||