OBD Guide
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P059B

Active Grille Air Shutter A Position Sensor Circuit Range/Performance

P059B is an OBD-II diagnostic trouble code meaning: Active Grille Air Shutter A Position Sensor Circuit Range/Performance. Common causes: contamination or icing of the radiator grille shutters, limiting travel, wear or damage to the blind drive mechanism. Estimated repair cost: $33–200.

Severity
✅ Low
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–200 (est.)

Symptoms

  • Check Engine light is on
  • Blinds do not open or close completely
  • Decreased fuel efficiency
  • Slow engine warm-up in cold weather
  • Possible errors in related cooling systems

Causes

  • Contamination or icing of the radiator grille shutters, limiting travel
  • Wear or damage to the blind drive mechanism
  • Incorrect calibration or position sensor failure
  • Entry of a foreign object blocking the movement of the plates
  • Malfunction of the actuator (electric drive) of the blinds

How to Fix

  1. Read all error codes and check the live parameter data of the blind position sensor
  2. Inspect the grille louvers for dirt, ice, foreign objects or damage.
  3. Clean the blinds and check the free movement of the slats manually
  4. Check the operation of the blinds drive using a diagnostic scanner (forced control)
  5. Check the position sensor signal when the blinds are fully opened and closed
  6. If a mechanical fault is detected, replace the blind unit or drive
  7. Reset codes and test drive to check

Related codes

P059AP059CP059DP059FP05A0

Error P059B by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P059B code mean?

P059B is an OBD-II diagnostic trouble code that indicates: Active Grille Air Shutter A Position Sensor Circuit Range/Performance

What causes a P059B error code?

The most common causes of P059B include: Contamination or icing of the radiator grille shutters, limiting travel; Wear or damage to the blind drive mechanism; Incorrect calibration or position sensor failure; Entry of a foreign object blocking the movement of the plates.

How do I fix a P059B diagnostic trouble code?

To fix P059B: Read all error codes and check the live parameter data of the blind position sensor. Inspect the grille louvers for dirt, ice, foreign objects or damage.. Clean the blinds and check the free movement of the slats manually. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P059B?

Do not drive — repair immediately

How much does it cost to fix P059B?

The estimated repair cost for P059B is $33–200. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat