HINT
When any of these DTCs are set, check the air flow rate by entering the following menus on the Techstream: Powertrain / Engine
/ Data List / MAF.
NOTICE:
- Perform the inspection with the vehicle indoors and on a level surface.
- Perform the inspection of the mass air flow meter sub-assembly while it is installed to the air cleaner case (installed to the
vehicle).
- During the test, do not use an exhaust air duct on the tail exhaust pipe assembly.
MONITOR DESCRIPTION
If there is a defect in the mass air flow meter sub-assembly or an open or short circuit, the voltage level deviates from the normal operating range.
The ECM interprets this deviation as a malfunction in the mass air flow meter sub-assembly and sets a DTC.
Example:
When the sensor output voltage remains less than 0.2 V, or more than 4.9 V, for more than 3 seconds, the ECM sets a DTC.
If the malfunction is not repaired successfully, a DTC is set 3 seconds after the engine is next started.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
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