Toyota Yaris: Mass Air Flow Meter / Inspection
INSPECTION
PROCEDURE
1. INSPECT MASS AIR FLOW METER
| (a) Perform a visual check for any foreign matter on the temperature sensor (thermistor) of the mass air flow meter shown in the illustration. OK: There is no foreign matter. If the result is not as specified, replace the mass air flow meter. | |
| (b) Measure the resistance according to the value(s) in the table below. Standard Resistance: | Tester Connection | Condition | Specified Condition | | D23-4 (THA) - D23-2 (E2G) | -20°C (-4°F) | 13.6 to 18.4 kΩ | | D23-4 (THA) - D23-2 (E2G) | 20°C (68°F) | 2.21 to 2.69 kΩ | | D23-4 (THA) - D23-2 (E2G) | 60°C (140°F) | 0.49 to 0.67 kΩ | If the result is not as specified, replace the mass air flow meter. |
| | *a | Component without harness connected (Mass Air Flow Meter) | | |
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the mass air flow meter removal/installation are shown below...
INSTALLATION PROCEDURE 1. INSTALL MASS AIR FLOW METER (a) Install the mass air flow meter to the air cleaner cap sub-assembly with the 2 screws. NOTICE:
If the mass air flow meter has been struck or dropped, replace it...
Other information:
If any of the following warning lights turns on/flashes, the system may
have a malfunction. Contact your Toyota dealer to have your vehicle
inspected.
ABS Warning Light
When the engine is jump-started to charge the battery, uneven rpm occurs
and the ABS warning light may illuminate...
DESCRIPTION Detection Item Symptom Trouble Area ECM Communication Stop Mode Communication stop for "ECM (Engine)" is indicated on the "Communication Bus Check" screen of the GTS. Click here
ECM main line or connector
Power source circuit of ECM
ECM ground circuit
ECM
WIRING DIAGRAM
CAUTION / NOTICE / HINT CAUTION: When performing the confirmation driving pattern, obey all speed limits and traffic laws...
Categories

Smart key
Auxiliary key
Key code number plate
To use the auxiliary key, press the knob and pull out the auxiliary key
from the smart key.

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