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Unit Inspection

Inspection of intake air flow meter sub-assembly

Use a working lamp, visually check the platinum filament (heater) portion of the intake air flow meter sub-assembly for foreign matter.

Fig 1: Checking Platinum Filament (Heater) Portion Of Intake Air Flow Meter Sub-Assembly
Courtesy of SUBARU OF AMERICA, INC.

Criteria: No foreign matter

NOTE: If there is a foreign matter on the platinum filament (heater), replace the intake air flow meter sub-assembly.

Inspection of intake temperature sensor resistance

Measure the resistance between the terminals.

Resistance

Inspection terminals	Inspection conditions	Standard value
1 - 2	-20°C {-4°F}	13.6 to 18.4 kΩ
	20°C {68°F}	2.21 to 2.69 kΩ
	60°C {140°F}	0.49 to 0.67 kΩ

Fig 2: Intake Air Flow Meter Sub-Assembly Connector Terminal Identification

G10213030

Courtesy of SUBARU OF AMERICA, INC.