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:

Data list / active test
Active test Hint: Performing the intelligent tester active test allows relay, vsv, actuator and other items to be operated without removing any parts. Performing the active test early in troubleshooting is one way to save time. The data list can be displayed during the active test. ...

Shift lock system
Parts location System diagram On-vehicle inspection Check shift lock operation Move the shift lever to p. Turn the ignition switch off. Check that the shift lever cannot be moved to any position other than p. Turn the ignition switch on, depress the brake pedal and chec ...

Front suspension lower no. 1 Arm
Components Removal Remove front wheel Remove hood sub-assembly Remove the hood (see page ed-4). Suspend engine assembly Install the no. 1 And no. 2 Engine hangers with the bolts as shown in the illustration. Torque: 38 n*m (387 kgf*cm, 28 ft.*Lbf) parts no. ...

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