Toyota RAV4 Service Manual: Check mode procedure
Hint:
Intelligent tester only:
compared to normal mode, check mode is more sensitive to
malfunctions. Therefore, check mode can detect the
malfunctions that cannot be detected by normal mode.
Notice:
All the stored dtcs and freeze frame data are erased if:
- The ecm is changed from normal mode to check mode
or vice versa;
- Or the ignition switch is turned from on
to acc or off while in check mode. Before changing
modes, always check and make a note of any dtcs and
freeze frame data.
- Check mode procedure (using intelligent
tester)
- Check and ensure the following conditions:
- Battery positive voltage 11 v or more.
- Throttle valve fully closed.
- Transmission in the p or n position.
- A/c switch off.
- Turn the ignition switch off.
- Connect the intelligent tester to the dlc3.
- Turn the ignition switch on.
- Turn the tester on.
- Select the following menu items: diagnosis /
enhanced obd ii/ check mode.
- Switch the ecm from normal mode to check mode.
-
Make sure the mil flashes as shown in the
illustration.
- Start the engine.
- Make sure the mil turns off.
- Simulate the conditions of the malfunction described
by the customer.
- Check dtcs and freeze frame data using the tester.
Description
Freeze frame data records the engine conditions (fuel
system, calculated load, engine coolant temperature,
fuel trim, engine speed, vehicle speed, etc.) When a
malfunction is dete ...
If any of the following dtcs are set, the ecm enters fail-safe
mode to allow the vehicle to be driven temporarily.
Hint:
*: The vehicle can be driven slowly when the accelerator
pedal is depre ...
Other materials:
Blower motor
On-vehicle inspection
Inspect blower motor (for automatic air conditioning system)
Disconnect the blower motor connector.
Connect the positive (+) lead from the battery to
terminal 1 and negative (-) lead to terminal 2, and
then check that the motor operates smoothly.
If the ...
Back-up power source circuit
Description
This is the back-up power source circuit for the air conditioning amplifier.
Power is supplied even when the
ignition switch is turned off and is used for functions such as the diagnostic
trouble code memory.
wiring diagram
Inspection procedure
Inspect fuse (ecu-b2)
...
Front door courtesy switch
Components
Removal
Hint:
Use the same procedures for the rh and lh sides.
The procedures listed below are for the lh side.
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal t ...