OBD Guide
ENFRDEESPT

B3593

Steering System Mode Switch Circuit Malfunction

B3593 is an OBD-II diagnostic trouble code meaning: Steering System Mode Switch Circuit Malfunction. Common causes: open or short circuit in wiring harness, malfunction of the steering mode switch. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Switching steering modes does not work
  • Check Engine Light Is On
  • Steering only works in one mode

Causes

  • Open or short circuit in wiring harness
  • Malfunction of the steering mode switch
  • Problems with the steering control unit
  • Contact corrosion

How to Fix

  1. Check wiring harness for damage
  2. Check the steering mode switch
  3. Check the steering control unit
  4. Clean or replace corroded contacts

Related codes

B3594B3595

Error B3593 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the B3593 code mean?

B3593 is an OBD-II diagnostic trouble code that indicates: Steering System Mode Switch Circuit Malfunction

What causes a B3593 error code?

The most common causes of B3593 include: Open or short circuit in wiring harness; Malfunction of the steering mode switch; Problems with the steering control unit; Contact corrosion.

How do I fix a B3593 diagnostic trouble code?

To fix B3593: Check wiring harness for damage. Check the steering mode switch. Check the steering control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B3593?

Limited driving only, diagnose soon

How much does it cost to fix B3593?

The estimated repair cost for B3593 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat