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2006 LEXUS GS 430
4.3L V8•RWD•AUTOMATIC•gas
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Repairs0Labor478Torque2122Fluid8DTC1846Battery1Maintenance0Recalls0
C1236moderate severityChassis

Foreign Matter Attached on Tip of Front Speed Sensor LH

on 2006 Lexus GS 430 4.3L V8 · RWD

What this code means

Metallic debris is stuck to the front left wheel speed sensor tip, disrupting the signal. No direct OBD P-code equivalent for this chassis code.

Symptoms

  • ABS warning light on
  • Erratic front LH wheel speed reading
  • Intermittent ABS activation

Common causes

  • Metal debris on sensor tip
  • Damaged sensor rotor/tone ring
  • Excessive sensor air gap
  • Faulty wheel speed sensor

Diagnostic steps

  1. Remove and clean sensor tip
  2. Inspect tone ring for damage
  3. Check sensor air gap
  4. Replace sensor if signal remains poor
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