Toyota RAV4 (XA40) 2013-2018 Service Manual: Mass air flow meter

Mil circuit

Description The mil (malfunction indicator lamp) is used to indicate vehicle malfunction detections by the ecm. When the ignition switch is turned on, power is supplied to the mil circuit, and ...

On-vehicle inspection

Notice: Perform the maf meter inspection according to the procedures below. Only replace the maf meter when both the long ft#1 value and maf value in the data list (with the engine stopped ...

Other materials:

Abbreviations used in manual
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Air-fuel ratio (a/f) and heated oxygen (ho2) sensor monitors (active air-fuel ratio control type)
Preconditions The monitor will not run unless: 2 Minutes or more have elapsed since the engine was started. The engine coolant temperature (ect) is 75°c (167°f) or more. Cumulative driving time at a vehicle speed of 48 km/h (30 mph) or more exceeds 6 minutes. Air-fuel rat ...

Road test
Inspect set switch Push the main switch on. Drive at a desired speed (40 km/h (25 mph) or higher). Inspect "+" switch Push the main switch button on. Drive at a desired speed (40 km/h (25 mph) or higher). Press the control switch to -/set. ...