DTC C1409: Front Speed Sensor RH Performance; DTC C1410: Front Speed Sensor LH Performance: Procedure

WARNING: This page is about a different car, the 2009 Lexus IS 350 and 2009 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.

REPLACE FRONT SPEED SENSOR
1. Replace the front speed sensor and the front axle hub sub-assembly (front speed sensor rotor). Refer to REMOVAL for 2WD) or the front speed sensor. Refer to REMOVAL for 4WD).
  HINT:
  
  The front speed sensor rotor is incorporated into the front axle hub sub-assembly.
  
  If the front speed sensor rotor needs to be replaced, replace it together with the front axle hub sub-assembly with front speed sensor (for 2WD).
  
  NOTE:
  Check the speed sensor signal after replacement. Refer to TEST MODE PROCEDURE .
  
  HINT:
  
  If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step. Refer to PROBLEM SYMPTOMS TABLE .
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