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2006 LEXUS GS 430
4.3L V8•RWD•AUTOMATIC•gas
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Repairs0Labor478Torque2122Fluid8DTC1846Battery1Maintenance0Recalls0
P0584low severityPowertrain

Cruise Control Vacuum Control Circuit High

on 2006 Lexus GS 430 4.3L V8 · RWD

What this code means

The cruise control vacuum control circuit voltage is higher than expected. The cruise control may fail to maintain the set speed.

Symptoms

  • Cruise won't hold speed
  • Cruise inoperative
  • Warning light on

Common causes

  • Shorted vacuum control wiring to power
  • Faulty vacuum solenoid
  • Corroded connector
  • Faulty PCM

Diagnostic steps

  1. Scan for related codes
  2. Measure vacuum control circuit voltage
  3. Inspect wiring for shorts to power
  4. Test vacuum solenoid
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