P1100 - Mass Air Flow (MAF) Sensor Circuit Intermittent - DTC Chart

P1100 - MASS AIR FLOW (MAF) SENSOR CIRCUIT INTERMITTENT - DTC CHART

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: MAF circuit intermittent open MAF circuit intermittent short to voltage MAF circuit intermittent short to ground Damaged MAF sensor Damaged harness connector Damaged harness
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 .