OBD Guide
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B3155

Passenger Door Lock Switch Circuit

B3155 is an OBD-II diagnostic trouble code meaning: Passenger Door Lock Switch Circuit. Common causes: open or shorted door wiring harness, door lock switch malfunction. Estimated repair cost: $33–111.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • The lock switch on the front right door does not work
  • Door locks may not respond to commands from the key fob or central switch
  • Door ajar alarm on the dashboard even if the door is closed

Causes

  • Open or shorted door wiring harness
  • Door lock switch malfunction
  • Corroded or damaged connectors
  • Body Control Module (BCM) Problem

How to Fix

  1. Check the condition of the front right door lock switch
  2. Inspect the wiring harness in the doorway for damage
  3. Check connectors for corrosion and connection reliability
  4. Check the continuity of the circuit with a multimeter
  5. If necessary, replace the switch or repair the harness

Related codes

B3150B3156B3160

Error B3155 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the B3155 code mean?

B3155 is an OBD-II diagnostic trouble code that indicates: Passenger Door Lock Switch Circuit

What causes a B3155 error code?

The most common causes of B3155 include: Open or shorted door wiring harness; Door lock switch malfunction; Corroded or damaged connectors; Body Control Module (BCM) Problem.

How do I fix a B3155 diagnostic trouble code?

To fix B3155: Check the condition of the front right door lock switch. Inspect the wiring harness in the doorway for damage. Check connectors for corrosion and connection reliability. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B3155?

Limited driving only, diagnose soon

How much does it cost to fix B3155?

The estimated repair cost for B3155 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat