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:

Diagnosis system
Description Sliding roof system data and diagnostic trouble codes (dtcs) can be read through the vehicle's data link connector 3 (dlc3). When the system seems to be malfunctioning, use the intelligent tester to check for malfunctions and perform repairs. Check dlc3 The vehi ...

Oxygen (a/f) sensor heater control circuit
Hint: Although the dtc titles say oxygen sensor, these dtcs relate to the air-fuel ratio (a/f) sensor. Sensor 1 refers to the sensor mounted in front of the three-way catalytic converter (twc) and located near the engine assembly. Description Refer to dtc p2195 (see page es-292 ...

Cold start
Description The electronic throttle control system (etcs) controls the engine idling speed. The etcs operates the throttle actuator to open and close the throttle valve, and adjusts the intake air amount to achieve the target idling speed. In addition, the ecm retards the ignition timi ...