Toyota RAV4 manuals

Toyota RAV4 Service Manual: Assist map number un-writing

Toyota RAV4. Assist map number un-writing


Description

The power steering ecu outputs this dtc when it determines that the assist map is not written in the ecu.

Hint:

The assist map data is written in the power steering ecu to control assisting power.

The assist map has 3 types. Select an assist map according to the vehicle country information that is recorded in the ecu.


Inspection procedure

  1. Perform assist map writing

  1. Turn the ignition switch on.
  2. Connect the intelligent tester (with can vim) to the dlc3.

Hint:

At this time, check that the p/s warning light is illuminated.

  1. Select signal check, and change to test mode.
  1. Wait for 3 seconds.


  1. Check p/s warning light

  1. Check the p/s warning light.

Result


Hint:

If the p/s warning light blinks at 0.25 Second intervals, the assist map adjustment has completed normally.



  1. Check dtc

  1. Check for dtc.

Result


Hint:

If dtc c1581/26 is output, turn the ignition switch off. Enter test mode again. If the dtc is output 3 times in a row, replace the power steering ecu.


Replace power steering ecu

Power supply relay failure
Description If the power steering ecu detects these dtcs, it shuts off the motor relay circuit (built into the power steering ecu) and stops power assist. Inspection procedure Reconfirm ...

Control module communication bus off
Description The power steering ecu receives signals from the ecm and the skid control ecu via the can communication system. Hint: When 2 or more dtcs starting with [u] are output simul ...

Other materials:

Front collision mitigation- Switching on/off
Switching on automatically The system is automatically active after every driving off. Switching on manually Press the button. The menu for the Intelligent Safety system is displayed. If all Intelligent Safety systems were switched off, all systems are now switched on. "Configure INDIVIDUAL": dep ...

General driving notes- Braking safely
General information The vehicle is equipped with an Antilock Braking System ABS as a standard feature. Perform an emergency stop in situations that require such. Steering is still responsive. You can still avoid any obstacles with a minimum of steering effort. Pulsation of the brake pedal and soun ...

Precaution
Handling precaution When handling the electronic parts: Avoid any impact to electronic parts such as ecus and relays. Replace with new ones if dropped or subjected to a severe blow. Do not expose any electronic parts to high temperatures and humidity. Do not touch the connec ...

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