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:
DESCRIPTION The main body ECU (multiplex network body ECU) controls the front fog lights. WIRING DIAGRAM
CAUTION / NOTICE / HINT NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
Click here
First, confirm that there is no malfunction in the power integration system...
DESCRIPTION Refer to DTC P323A19. Click here
DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory Note P30DF62 Backup Boost Converter Circuit Board(Thermistor) Signal Compare Failure The following conditions is met for 1 second or more (1 trip detection logic):
Difference in temperature between thermistor 1 and thermistor 2 of the engine stop and start ECU is 40°C (72°F) or higher...
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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