Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

PERFORM ASSIST MAP WRITING
1. Turn the ignition switch ON.
2. Connect the Techstream (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.
3. Wait for 3 seconds.

CHECK P/S WARNING LIGHT

Check the P/S warning light.

Result

RESULT CHART

Result	Proceed to
P/S warning light illuminates	A
P/S warning light blinks at 0.25 second intervals	B

HINT:

If the P/S warning light blinks at 0.25 second intervals, the assist map adjustment has completed normally.

B: END

A: Go to next step

CHECK DTC

Check for DTC.

Result

RESULT CHART

Result	Proceed to
C1581/26 output Assist map write adjustment operation not completed 3 times or more	A
Code other than C1581/26 is output	B
C1581/26 output Assist map write adjustment operation not completed less than 3 times	C

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.

B: REFER TO DTC

C: Go to step 1

A: REPLACE POWER STEERING ECU