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2007 LEXUS GS 430
4.3L V8•RWD•AUTOMATIC•gas
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Repairs0Labor478Torque2122Fluid8DTC1857Battery1Maintenance0Recalls0
C1232moderate severityChassis

Deceleration Sensor Malfunction

on 2007 Lexus GS 430 4.3L V8 · RWD

What this code means

The ABS ECU has detected an abnormal signal from the deceleration (G) sensor. No direct OBD P-code equivalent for this chassis code.

Symptoms

  • VSC/ABS warning lights on
  • Stability control inactive
  • Erratic brake control

Common causes

  • Faulty deceleration sensor
  • Sensor wiring open or short
  • Corroded connector
  • Faulty ABS ECU

Diagnostic steps

  1. Check deceleration sensor signal
  2. Inspect wiring and connectors
  3. Verify sensor mounting is secure
  4. Replace sensor if out of spec
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