OBD Guide
ENFRDEESPT

B305C

Immobilizer Transponder Of Wrong Type Programmed

B305C is an OBD-II diagnostic trouble code meaning: Immobilizer Transponder Of Wrong Type Programmed. Common causes: faulty or incorrectly programmed transponder, damaged chip in the ignition key. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Engine won't start
  • The immobilizer indicator is flashing
  • The car stalls immediately after starting

Causes

  • Faulty or incorrectly programmed transponder
  • Damaged chip in the ignition key
  • Immobilizer malfunction
  • Problems with the immobilizer wiring harness

How to Fix

  1. Check the ignition key for damage
  2. Try using a spare key
  3. Check the immobilizer wiring harness for damage.
  4. Reprogram the transponder using dealer equipment
  5. Replace the immobilizer if necessary

Related codes

B305BB305DB305E

Error B305C by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the B305C code mean?

B305C is an OBD-II diagnostic trouble code that indicates: Immobilizer Transponder Of Wrong Type Programmed

What causes a B305C error code?

The most common causes of B305C include: Faulty or incorrectly programmed transponder; Damaged chip in the ignition key; Immobilizer malfunction; Problems with the immobilizer wiring harness.

How do I fix a B305C diagnostic trouble code?

To fix B305C: Check the ignition key for damage. Try using a spare key. Check the immobilizer wiring harness for damage.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B305C?

Yes, but get it checked soon

How much does it cost to fix B305C?

The estimated repair cost for B305C is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat