Toyota RAV4 (XA40) 2013-2018 Service Manual: Check mode procedure
- Description
- Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode, dtcs are detected with 1 trip detection logic.
- Check mode procedure
- Make sure that the following conditions below are met:
- Battery positive voltage 11 v or more
- Throttle valve fully closed
- Transaxle in the p or n position
- A/c off
- Turn the ignition switch off.
- Connect the intelligent tester to the can vim. Then connect the can vim to the dlc3.
- Turn the ignition switch on and turn the tester on.
- Enter the following menus: diagnosis / enhanced obd ii / check mode.
- Change the ecm to check mode. Make sure the mil flashes as shown in the illustration.
Notice:
All dtcs and freeze frame data recorded will be erased if: 1) the intelligent tester is used to change the ecm from normal mode to check mode or vice versa; or 2) during check mode, the ignition switch is turned from on to acc or off.
Before check mode, make notes of the dtcs and freeze frame data.
- Start the engine. The mil should turn off after the engine starts.
- Perform "monitor drive pattern" for the ect
test (see page ax-19).
(Or, simulate the conditions of the malfunction described by the customer.)
- After simulating the malfunction conditions, use the tester to check the dtc and freeze frame data.
Dtc check / clear
Check dtc
Dtcs which are stored in the ecm can be displayed
with the intelligent tester.
The intelligent tester can display pending dtcs and
current dtcs. Some dtcs are not stored ...
Fail-safe chart
Fail-safe chart
This function minimizes the loss of the ect functions
when a malfunction occurs in a sensor or solenoid.
Automatic transmission fluid (atf) temperature
sensor:
when the ...
Other materials:
Underdrive clutch
Components
Disassembly
Inspect pack clearance of underdrive
clutch (see page ax-247)
Remove no. 1 Underdrive clutch disc
Using a screwdriver, pry out the underdrive clutch
flange snap ring.
Remove the flange, 3 discs and 3 plates from the
underdrive clutch drum.
In ...
Data list / active test
Read data list
Hint:
Using the intelligent tester's data list allows switch,
sensor, actuator and other item values to be read without
removing any parts. Reading the data list early in
troubleshooting is one way to save time.
Connect the intelligent tester (with can vim) to the
dlc3 ...
Throttle / pedal position sensor / switch "A" circuit range / performance
problem
Hint:
This dtc relates to the throttle position (tp) sensor.
Description
Refer to dtc p0120 (see page es-114).
Monitor description
The ecm uses the tp sensor to monitor the throttle valve opening angle.
This sensor transmits two signals: vta1 and vta2. Vta1 is used to detect the
th ...
