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Home >> Toyota >> 2016 >> Camry LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Power Steering System (2GR-FE) (Diagnostic Codes (C1511-U0100 & Circuit Tests) (Except Hybrid)) >> POWER STEERING SYSTEM (for 2GR-FE) >> DTC C1581: Assist Map Number Un-Writing [08/2015 - ] >> Procedure

DTC C1581: Assist Map Number Un-Writing [08/2015 - ]: Procedure

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  1. PERFORM ASSIST MAP WRITING 
    1. Perform the assist map writing. Refer to CALIBRATION [08/2015 - ] .

    NEXT: Go to next step 

  2. CHECK FOR DTC 
    1. Check for DTCs. Refer to DTC CHECK / CLEAR [08/2015 - ] .

      Result

      Result Proceed to
      DTC is still output even after performing assist map writing 3 times. A
      DTC is still output even after performing assist map writing once or twice.* B
      DTC is not output. C

      *: Perform the assist map writing again if DTC C1581 is still output even after the assist map writing is performed once or twice.

    B → See step   9 

    C → END 

    A: Go to next step 

  3. CHECK FOR DTC (CAN COMMUNICATION SYSTEM) 
    1. Check for DTCs. Refer to DIAGNOSIS SYSTEM [08/2015 - ] .

      OK

      DTC is not output.

      HINT: 

      If the CAN communication system DTC is output, first troubleshoot the CAN communication system malfunction, then perform the assist map writing again. Refer to CALIBRATION [08/2015 - ] .

    NG → See step   7 

    OK: Go to next step 

  4. CHECK FOR DTC (SFI SYSTEM) 
    1. Check for DTCs of the SFI system. Refer to DTC CHECK / CLEAR [08/2015 - ] .

      Result

      Result Proceed to
      DTC of the SFI system is not output A
      DTC of the SFI system is output B

    B → See step   8 

    A: Go to next step 

  5. CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM) 
    1. Check for DTCs of the vehicle stability control system. Refer to DTC CHECK / CLEAR [08/2015 - ] .

      Result

      Result Proceed to
      DTC of the vehicle stability control system is not output A
      DTC of the vehicle stability control system is output B

    B → See step   10 

    A → See step   6 

  6. REPLACE POWER STEERING ECU ASSEMBLY. Refer to  REMOVAL [08/2015 - ] 
  7. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ] 
  8. GO TO SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ] 
  9. PERFORM ASSIST MAP WRITING AGAIN. Refer to  CALIBRATION [08/2015 - ] 
  10. GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]