OBD Guide
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P05B5

Active Grille Air Shutter B Supply Voltage Circuit/Open

P05B5 is an OBD-II diagnostic trouble code meaning: Active Grille Air Shutter B Supply Voltage Circuit/Open. Common causes: blown blinds power fuse, broken or damaged power cord.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately

Symptoms

  • Check Engine light on
  • Section B blind system does not work completely
  • Blinds locked in emergency position
  • Possible blown fuse in fuse box
  • The position sensor also does not function

Causes

  • Blown blinds power fuse
  • Broken or damaged power cord
  • Faulty blinds power relay
  • Oxidation of the power connector with loss of contact
  • Previous short circuit that caused a fuse to blow

How to Fix

  1. Find and check the fuse for the power supply circuit of the blinds according to the car diagram
  2. If the fuse is blown, find out the reason (check the wiring for a short circuit) before replacing it
  3. Check the presence of voltage at the input and output of the blinds power relay
  4. Check the entire length of the power cable from the fuse/relay to the blind connector
  5. Replace the faulty element (fuse, relay or wire)
  6. After power is restored, check system operation and reset codes

Related codes

P05B6P05B7P05B1P05B3P05B4

Error P05B5 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P05B5 code mean?

P05B5 is an OBD-II diagnostic trouble code that indicates: Active Grille Air Shutter B Supply Voltage Circuit/Open

What causes a P05B5 error code?

The most common causes of P05B5 include: Blown blinds power fuse; Broken or damaged power cord; Faulty blinds power relay; Oxidation of the power connector with loss of contact.

How do I fix a P05B5 diagnostic trouble code?

To fix P05B5: Find and check the fuse for the power supply circuit of the blinds according to the car diagram. If the fuse is blown, find out the reason (check the wiring for a short circuit) before replacing it. Check the presence of voltage at the input and output of the blinds power relay. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P05B5?

Do not drive — repair immediately

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See also: Russian version · NationStat