Mass Air Flow Sensor Plausibility #3

Test 1:

Test 2 - 6:

Test 7 - 11:

Test 12 - 15:

Test 16 - 17:

SYMPTOM
P0100-MASS AIR FLOW SENSOR PLAUSIBILITY #3

TEST NOTE
This symptom is diagnosed using the test P0100-MASS AIR FLOW SENSOR PLAUSIBILITY #1.

WHEN MONITORED
With the ignition on.

SET CONDITION
The ECM detects a rationality problem with the MAF Sensor.

POSSIBLE CAUSES
- 12 volt supply circuit open
- Checking the engine control relay system
- ECM - 5-volt supply circuit
- Mass airflow sensor
- Sensor ground open
- Intermittent condition
- MAF sensor 5 volt supply circuit open
- MAF sensor signal circuit open
- MAF 5 volt supply circuit shorted to the sensor ground circuit
- MAF sensor signal circuit shorted to ground
- ECM sensor ground circuit open
- MAF sensor 5 volt supply circuit shorted to ground
- MAF sensor signal circuit shorted to the sensor ground circuit
- MAF sensor 5 volt supply circuit shorted to voltage
- MAF sensor circuit shorted to voltage
- ECM - MAF sensor signal circuit