| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001EVBF |
| Model Year Start: 2019 | Model: RAV4 HV | Prod Date Range: [11/2018 - 02/2019] |
| Title: A25A-FXS (ENGINE CONTROL): MASS AIR FLOW METER: ON-VEHICLE INSPECTION; 2019 MY RAV4 HV [11/2018 - 02/2019] | ||
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY
HINT:
Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.
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![2019 - 2020 MY RAV4 HV [11/2018 - 08/2020]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM (w/o Canister Pump Module): INITIALIZATION](/t3Portal/stylegraphics/info.gif)
(a) Read the value of Data List item "Mass Air Flow Sensor" using the Techstream.
NOTICE:
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).
(1) Check and ensure the following conditions:
- Turn off all electrical loads, such as the air conditioning, etc.
- Check that the coolant temperature is 75°C (167°F) or more.
- Put the shift lever in the N position.
(2) Connect the Techstream to the DLC3.
(3) Turn the power switch on (IG).
(4) Turn the Techstream on.
(5) Put the engine in Inspection Mode (Maintenance Mode).
Powertrain > Hybrid Control > Utility
|
Tester Display |
|---|
|
Inspection Mode |
(6) Start the engine.
(7) According to the display on the Techstream, read the Data List when the engine is running.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Mass Air Flow Sensor |
Standard Condition:
|
Techstream Display |
Condition |
Specified Condition |
|---|---|---|
|
Mass Air Flow Sensor |
Idling (shift lever in P, engine warmed up, inspection mode [maintenance mode] and not charge control) |
2.6 to 8.6 gm/sec |
|
2500 rpm (shift lever in P, engine warmed up and inspection mode [maintenance mode] ) |
6.2 to 18.6 gm/sec |
If the result is not as specified, clean the mass air flow meter sub-assembly.
After cleaning (air blowing) the mass air flow meter sub-assembly, perform an on-vehicle inspection of the mass air flow meter sub-assembly again and replace the mass air flow meter sub-assembly if the result is not as specified.
If the result is within the specified range, check the intake air temperature sensor (thermistor) resistance.
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2. CLEAN MASS AIR FLOW METER SUB-ASSEMBLY
NOTICE:
If the mass air flow meter sub-assembly is removed and installed 10 times or more, the thread of the hole of the mass air flow meter sub-assembly may be damaged. Therefore, do not loosen the screws of the mass air flow meter sub-assembly.
(a) Remove the air cleaner cap sub-assembly.
(b) Clean the mass air flow meter sub-assembly.
NOTICE:
- Do not contact the mass air flow meter sub-assembly with the nozzle of the air blow gun.
- Do not insert the nozzle of the air blow gun into the airflow hole.
|
*1 |
Mass Air Flow Meter Sub-assembly |
|
*a |
Air Blow Gun |
|
*b |
10 mm (0.394 in.) |
|
*c |
Airflow Hole |
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(1) Using an air blow gun, clean the hole of the mass air flow meter sub-assembly by applying approximately 10 intermittent bursts of air to the airflow hole at a pressure of approximately 392 to 981 kPa (4.0 to 10.0 kgf/cm2, 57 to 142 psi). HINT: Apply 5 intermittent bursts of air to the airflow hole at 2 locations. |
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(c) Install the air cleaner cap sub-assembly.
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