Toyota RAV4 (XA40) 2013-2018 Service Manual: Mass air flow meter
Components
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:
Oxygen (a/f) sensor signal stuck
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
The a/f sensor generates a voltage* ...
A/f sensor circuit slow response (bank 1 sensor 1)
Hint:
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).
Monitor description
After the engine is warmed up, the ecm performs air-fuel ratio feedback
contro ...
Freeze frame data
Freeze frame data
Hint:
Whenever a dtc is detected or the abs operates,
the skid control ecu stores the current vehicle
(sensor) state as freeze frame data.
The skid control ecu stores the number of times
(maximum: 31) the ignition switch has been turned
from off to on since the ...
