OBD Guide
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P05A7

Active Grille Air Shutter A Supply Voltage Circuit Low

P05A7 is an OBD-II diagnostic trouble code meaning: Active Grille Air Shutter A Supply Voltage Circuit Low. Common causes: weak or dead battery, faulty generator not providing normal voltage. Estimated repair cost: $6–89.

Severity
✅ Low
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$6–89 (est.)

Symptoms

  • Check Engine light is on
  • Blinds are unstable or do not work
  • Possible signs of a weak battery or charging problems
  • Other electrical systems may be unstable
  • Blinds locked in emergency position

Causes

  • Weak or dead battery
  • Faulty generator not providing normal voltage
  • Oxidation in the power supply circuit of the blinds (connectors, fuse terminals)
  • Poor ground connection between the actuator and the body
  • High contact resistance in the fuse box

How to Fix

  1. Measure the voltage of the on-board network with the engine running - it should be 13.5–14.5 V
  2. Check battery condition and load test
  3. Measure the voltage directly at the blind actuator connector with the engine running.
  4. Check the voltage drop at the fuse and at the terminal connections of the blinds power supply circuit
  5. Check the quality of the “mass” connection between the actuator and the body
  6. Clean and restore all connectors in the blinds power circuit
  7. Reset codes and check for normal supply voltage while the system is running

Related codes

P05A6P05A8P05A2P05A5P059A

Error P05A7 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P05A7 code mean?

P05A7 is an OBD-II diagnostic trouble code that indicates: Active Grille Air Shutter A Supply Voltage Circuit Low

What causes a P05A7 error code?

The most common causes of P05A7 include: Weak or dead battery; Faulty generator not providing normal voltage; Oxidation in the power supply circuit of the blinds (connectors, fuse terminals); Poor ground connection between the actuator and the body.

How do I fix a P05A7 diagnostic trouble code?

To fix P05A7: Measure the voltage of the on-board network with the engine running - it should be 13.5–14.5 V. Check battery condition and load test. Measure the voltage directly at the blind actuator connector with the engine running.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P05A7?

Do not drive — repair immediately

How much does it cost to fix P05A7?

The estimated repair cost for P05A7 is $6–89. Actual cost depends on your vehicle, location, and labor rates.

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