OBD Guide
ENFRDEESPT

P0384

Glow Plug Control Module 1 Control Circuit High

P0384 is an OBD-II diagnostic trouble code meaning: Glow Plug Control Module 1 Control Circuit High. Common causes: short circuit to positive in the glow plug wiring harness, malfunction of the glow plug control module. Estimated repair cost: $56–167.

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

Symptoms

  • Difficulty starting the engine (in cold weather)
  • Power dips
  • Increased smoke production
  • Check Engine warning light mit an

Causes

  • Short circuit to positive in the glow plug wiring harness
  • Malfunction of the glow plug control module
  • Poor contact or corrosion in module connector
  • Electronic control unit (ECU/WAR) failure

How to Fix

  1. Check the voltage in the glow plug module control circuit (disconnecting the connector)
  2. Inspect the wiring harness for damage and short circuits.
  3. Test the resistance of the glow plugs (should be 0.6–2.0 Ohm)
  4. Check the serviceability of the glow plug control module
  5. Scan error codes in ECU for additional data

Error P0384 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0384 code mean?

P0384 is an OBD-II diagnostic trouble code that indicates: Glow Plug Control Module 1 Control Circuit High

What causes a P0384 error code?

The most common causes of P0384 include: Short circuit to positive in the glow plug wiring harness; Malfunction of the glow plug control module; Poor contact or corrosion in module connector; Electronic control unit (ECU/WAR) failure.

How do I fix a P0384 diagnostic trouble code?

To fix P0384: Check the voltage in the glow plug module control circuit (disconnecting the connector). Inspect the wiring harness for damage and short circuits.. Test the resistance of the glow plugs (should be 0.6–2.0 Ohm). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0384?

Limited driving only, diagnose soon

How much does it cost to fix P0384?

The estimated repair cost for P0384 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat