OBD Guide
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U0307

Software Incompatibility With Glow Plug Control Module 1

U0307 is an OBD-II diagnostic trouble code meaning: Software Incompatibility With Glow Plug Control Module 1. Common causes: incompatible software versions in the ecu and control module, software bugs. Estimated repair cost: $56–167.

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

Symptoms

  • Difficulty starting the engine in cold weather
  • Check Engine indicator on the dashboard
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine operation at idle

Causes

  • Incompatible software versions in the ECU and control module
  • Software bugs
  • Problems with wiring between modules
  • Malfunction of the glow plug control module
  • Damaged connectors or corroded contacts

How to Fix

  1. Check software versions in both modules
  2. Update or reinstall the software in the problematic module
  3. Check the integrity of wiring and connectors
  4. Test the glow plug control module
  5. If necessary, replace the control module

Related codes

U0300U0301U0308

Error U0307 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the U0307 code mean?

U0307 is an OBD-II diagnostic trouble code that indicates: Software Incompatibility With Glow Plug Control Module 1

What causes a U0307 error code?

The most common causes of U0307 include: Incompatible software versions in the ECU and control module; Software bugs; Problems with wiring between modules; Malfunction of the glow plug control module.

How do I fix a U0307 diagnostic trouble code?

To fix U0307: Check software versions in both modules. Update or reinstall the software in the problematic module. Check the integrity of wiring and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U0307?

Yes, but get it checked soon

How much does it cost to fix U0307?

The estimated repair cost for U0307 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat