|
|
Symptom List: P0100-MASS AIR FLOW SENSOR SIGNAL VOLTAGE TOO HIGH Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0100-MASS AIR FLOW SENSOR When Monitored and Set Condition: P0100-MASS AIR FLOW SENSOR SIGNAL VOLTAGE TOO HIGH When Monitored: With the ignition on or engine running below 3800 rpm. Set Condition: The MAF Sensor Signal voltage is above 4.5 volts. P0100-MASS AIR FLOW SENSOR SIGNAL VOLTAGE TOO LOW When Monitored: With the ignition on or enigne running below 3800 rpm. Set Condition: The Mass Air Flow Sensor Signal voltage is below 0.2 volt. P0100-MASS AIR FLOW SENSOR SUPPLY VOLTAGE TOO HIGH OR LOW When Monitored: With the ignition on. Set Condition: The Sensor Reference Voltage A voltage to the MAF is below 4.8 volts or above 5.2 volts for at least 100 ms. POSSIBLE CAUSES ASD RELAY OUTPUT CIRCUIT OPEN ECM - SENSOR REFERENCE VOLTAGE A SUPPLY CIRCUIT MASS AIRFLOW SENSOR SENSOR GROUND OPEN INTERMITTENT CONDITION SENSOR REFERENCE VOLTAGE A CIRCUIT OPEN MAF SENSOR SIGNAL CIRCUIT OPEN SENSOR REFERENCE VOLTAGE A CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT MAF SENSOR SIGNAL CIRCUIT SHORTED TO GROUND ECM SENSOR GROUND CIRCUIT OPEN SENSOR REFERENCE VOLTAGE A CIRCUIT SHORTED TO GROUND MAF SENSOR SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT SENSOR REFERENCE VOLTAGE A CIRCUIT SHORTED TO VOLTAGE 20 DRIVEABILITY - DIESEL |