On-Vehicle Inspection [08/2013 - ]
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Perform the mass air flow meter sub-assembly inspection according to the procedure below.
- Only replace the mass air flow meter sub-assembly when the mass air flow value in the Data List (with the engine stopped) is not within the normal operating range or there is foreign matter on the mass air flow meter sub-assembly platinum hot wire (heater).
HINT:
Perform "Inspection After Repairs" after replacing the mass air flow meter. Refer to INITIALIZATION [08/2013 - ] .
- INSPECT MASS AIR FLOW METER SUB-ASSEMBLY NOTE:
- 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 cap sub-assembly (installed to the vehicle).
- During the test, do not use an exhaust air duct on the exhaust pipe.
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) (do not start the hybrid system).
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAF.
- Wait 30 seconds, and read the values on the Techstream.
Standard
Item Condition Specified Condition MAF - Engine not running
- 30 seconds after turning power switch on (IG)
0.50g/sec. or less If the result is not as specified, replace the mass air flow meter sub-assembly.
If the result is as specified, inspect the mass air flow meter sub-assembly. Refer to INSPECTION [08/2013 - ] .