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2007 LEXUS GS 430
4.3L V8•RWD•AUTOMATIC•gas
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Repairs0Labor478Torque2122Fluid8DTC1857Battery1Maintenance0Recalls0
C1391high severityChassis

Front Speed Sensor RH Circuit Malfunction

on 2007 Lexus GS 430 4.3L V8 · RWD

What this code means

A circuit fault was detected in the front right wheel speed sensor. Similar to OBD code C0035.

Symptoms

  • ABS warning light on
  • Traction control off
  • Speedometer may be erratic

Common causes

  • Faulty front right wheel speed sensor
  • Damaged sensor wiring
  • Corroded connector
  • Debris on sensor tone ring

Diagnostic steps

  1. Scan for wheel speed codes
  2. Inspect sensor and tone ring
  3. Check wiring continuity
  4. Replace sensor if faulty
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