OBD Guide
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P0592

Cruise Control Multi-Function Input B Circuit Low

P0592 is an OBD-II diagnostic trouble code meaning: Cruise Control Multi-Function Input B Circuit Low. Common causes: input b signal wire short to ground, stuck or jammed button in the control unit. Estimated repair cost: $17–89.

Severity
✅ Low
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$17–89 (est.)

Symptoms

  • Cruise control completely inoperable
  • Check Engine Light Illuminates
  • One of the steering wheel buttons may be stuck
  • Incorrect operation of related functions (audio, telephone) on the steering wheel

Causes

  • Input B signal wire short to ground
  • Stuck or jammed button in the control unit
  • Liquid getting into the steering wheel button block
  • Internal short circuit in the steering wheel cable
  • Malfunction of the resistor in the button circuit

How to Fix

  1. Inspect the steering wheel button block for stuck buttons and traces of liquid.
  2. Measure the voltage at input B with no buttons pressed (should be close to 5 V)
  3. Check input B signal wire for short to ground.
  4. Inspect the steering wheel cable connector for damage.
  5. Dry and clean the button block if traces of moisture are detected
  6. Replace the steering wheel button assembly when an internal short is confirmed

Related codes

P0591P0593P0575P0565P0568

Error P0592 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0592 code mean?

P0592 is an OBD-II diagnostic trouble code that indicates: Cruise Control Multi-Function Input B Circuit Low

What causes a P0592 error code?

The most common causes of P0592 include: Input B signal wire short to ground; Stuck or jammed button in the control unit; Liquid getting into the steering wheel button block; Internal short circuit in the steering wheel cable.

How do I fix a P0592 diagnostic trouble code?

To fix P0592: Inspect the steering wheel button block for stuck buttons and traces of liquid.. Measure the voltage at input B with no buttons pressed (should be close to 5 V). Check input B signal wire for short to ground.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0592?

Do not drive — repair immediately

How much does it cost to fix P0592?

The estimated repair cost for P0592 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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