Toyota RAV4 Service Manual: 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 last time the abs was activated. However, if the vehicle was stationary or running at a low speed (7 km/h [4.3 Mph] or less), or if a dtc is detected, the skid control ecu stops counting.
- Freeze frame data at the time the abs operates:
the skid control ecu stores and updates the data
whenever the abs system operates.
When the ecu stores data at the time a dtc is detected, the data stored when the abs operated is erased.
- Freeze frame data at the time a dtc is detected: when the skid control ecu stores data at the time a dtc is detected, no updates will be performed until the data is cleared.
- Connect the intelligent tester (with can vim) to the dlc3.
- Turn the ignition switch on.
- Turn the tester on.
- From the display on the tester, select "freeze frame data".
Dtc check / clear
Check dtc (when using intelligent tester)
Connect the intelligent tester (with can vim) to the
dlc3.
Turn the ignition switch on.
Turn the tester on.
Read the dtcs by following the pr ...
Fail-safe chart
Fail safe operation
If there is a problem with any sensor signals or
actuator systems, the skid control ecu prohibits the
power supply to the abs and traction actuator
and informs the e ...
Other materials:
Valve body assembly
Components
Removal
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
Remove no. 1 Engine under cover
Drain automati ...
System voltage
Description
The battery supplies electricity to the ecm even when the ignition switch is
in the off position. This
power allows the ecm to store data such as dtc history, freeze frame data and
fuel trim values. If the
battery voltage falls below a minimum level, the memory is cleared and ...
Occupant classification ecu malfunction
Description
Dtc b1795 is recorded when a malfunction is detected in the occupant
classification ecu.
Troubleshoot dtc b1771 first when dtc b1771 and b1795 are output simultaneously.
Wiring diagram
Inspection procedure
Check for dtc
Turn the ignition switch on, and wait ...
