OBD Guide
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P05C1

Active Grille Air Shutter Module B Over Temperature

P05C1 is an OBD-II diagnostic trouble code meaning: Active Grille Air Shutter Module B Over Temperature. Common causes: mechanical blocking of section b blinds (ice, stone, plate deformation), module b motor overload due to increased resistance. Estimated repair cost: $33–222.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–222 (est.)

Symptoms

  • Check Engine light is on
  • The louvers of the lower or side sections of the grille hang in one position
  • Possible slight overheating under intense loads
  • Deterioration of the aerodynamic characteristics of the car
  • Active blinds warning on dashboard

Causes

  • Mechanical blocking of section B blinds (ice, stone, plate deformation)
  • Module B motor overload due to increased resistance
  • Overheating of the engine compartment affecting the module electronics
  • Module B electronics internal fault
  • Damage or oxidation of wiring and module B connector

How to Fix

  1. Monitor the coolant temperature - if it overheats, stop the car immediately
  2. Inspect the bottom of the front grille for blockages, foreign objects, or deformation.
  3. Manually check the mobility of the blinds of section B - the movement should be smooth, without jamming
  4. Connect a scanner and view data on blinds module B in real time
  5. Check the electrical circuits of module B: supply voltage, wiring integrity, connector condition
  6. Replace module B if it is confirmed to be faulty

Related codes

P05C0P0597P0598P0599

Error P05C1 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P05C1 code mean?

P05C1 is an OBD-II diagnostic trouble code that indicates: Active Grille Air Shutter Module B Over Temperature

What causes a P05C1 error code?

The most common causes of P05C1 include: Mechanical blocking of section B blinds (ice, stone, plate deformation); Module B motor overload due to increased resistance; Overheating of the engine compartment affecting the module electronics; Module B electronics internal fault.

How do I fix a P05C1 diagnostic trouble code?

To fix P05C1: Monitor the coolant temperature - if it overheats, stop the car immediately. Inspect the bottom of the front grille for blockages, foreign objects, or deformation.. Manually check the mobility of the blinds of section B - the movement should be smooth, without jamming. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P05C1?

Limited driving only, diagnose soon

How much does it cost to fix P05C1?

The estimated repair cost for P05C1 is $33–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat