Toyota RAV4 (XA40) 2013-2018 Service Manual: Purpose of readiness tests
- The on-board diagnostic (obd ii) system is designed to monitor the performance of emission related components, and indicate any detected abnormalities with dtc (diagnostic trouble codes). Since various components need to be monitored during different driving conditions, the obd ii system is designed to run separate monitoring programs called readiness monitors.
- The intelligent tester's software must be version 9.0 Or newer to view the readiness monitor status. To view the status, select the following menu items: diagnosis / enhanced obd ii / monitor info / monitor status.
- When the readiness monitor status reads compl (complete), the necessary conditions have been met for running the performance tests for that readiness monitor.
- A generic obd ii scan tool can also be used to view the readiness monitor status.
Hint:
Many state inspection and maintenance (i/m) programs require a vehicle's readiness monitor status to show compl before beginning emission tests.
The readiness monitor will be reset to incmpl (incomplete) if:
- The ecm has lost battery power or blown a fuse.
- Dtcs have been cleared.
- The conditions for running the readiness monitor have not been met.
If the readiness monitor status shows incmpl, follow the appropriate readiness monitor drive pattern to change the status to compl.
Caution:
Strictly observe posted speed limits, traffic laws, and road conditions when performing these drive patterns.
Notice:
These drive patterns represent the fastest method of satisfying all conditions necessary to achieve complete status for each specific readiness monitor.
In the event of a drive pattern being interrupted (possibly due to factors such as traffic conditions), the drive pattern can be resumed. In most cases, the readiness monitor will still achieve complete status upon completion of the drive pattern.
To ensure completion of the readiness monitors, avoid sudden changes in vehicle load and speed (driving up and down hills and/or sudden acceleration).
Catalyst monitor (active air-fuel ratio control type)
Preconditions
The monitor will not run unless:
The mil is off.
Drive pattern
Connect the intelligent tester to the dlc3.
Turn the ignition switch on.
Turn the tester on.
...
Other materials:
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) are not within the normal operating
range.
Inspect mass air flow meter
Perform c ...
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 ...
Clock
The clock can be adjusted by pressing the buttons.
Adjusts the hours.
Adjusts the minutes.
The clock is displayed when
Vehicles without a smart key system
The engine switch is in the “acc” or “on” position.
Vehicles with a smart key system
The engine switch is in a ...
