OBD Guide
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C0327

Transfer Case Encoder Circuit Malfunction

C0327 is an OBD-II diagnostic trouble code meaning: Transfer Case Encoder Circuit Malfunction. Common causes: wear of transfer case encoder contacts, transfer case drive motor malfunction. Estimated repair cost: $33–222.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–222 (est.)

Symptoms

  • Unable to switch all-wheel drive mode
  • The 4WD / Service 4WD indicator on the dashboard is flashing
  • Transfer case stuck in one mode
  • Extraneous noise when trying to switch
  • The vehicle is moving in a mode that does not correspond to the selected one

Causes

  • Wear of transfer case encoder contacts
  • Transfer case drive motor malfunction
  • Broken or damaged wiring between the encoder and the control unit
  • Oxidation of the encoder connector
  • Mechanical damage to transfer case drive gears

How to Fix

  1. Read error codes with an all-wheel drive scanner
  2. Check the encoder connector for oxidation and damage
  3. Measure the resistance and voltage at the encoder pins
  4. Check the operation of the transfer case drive motor
  5. Replace the transfer case encoder (position sensor)
  6. After replacement, perform the procedure for training the new encoder with a scanner

Related codes

C0326C0328U0100

Error C0327 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the C0327 code mean?

C0327 is an OBD-II diagnostic trouble code that indicates: Transfer Case Encoder Circuit Malfunction

What causes a C0327 error code?

The most common causes of C0327 include: Wear of transfer case encoder contacts; Transfer case drive motor malfunction; Broken or damaged wiring between the encoder and the control unit; Oxidation of the encoder connector.

How do I fix a C0327 diagnostic trouble code?

To fix C0327: Read error codes with an all-wheel drive scanner. Check the encoder connector for oxidation and damage. Measure the resistance and voltage at the encoder pins. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0327?

Do not drive — repair immediately

How much does it cost to fix C0327?

The estimated repair cost for C0327 is $33–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat