OBD Guide
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P090A

Clutch B Actuator Control Circuit/Open

P090A is an OBD-II diagnostic trouble code meaning: Clutch B Actuator Control Circuit/Open. Common causes: break in the actuator wiring harness, actuator solenoid valve malfunction. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Gear shifting problems
  • Transmission transition to emergency mode
  • Check Engine Light Illuminates
  • Reduced vehicle dynamics
  • Unusual noises from the clutch area

Causes

  • Break in the actuator wiring harness
  • Actuator solenoid valve malfunction
  • Poor contact in connectors
  • Transmission control unit malfunction
  • Short circuit in control circuit

How to Fix

  1. Check the integrity of the wiring harness to the actuator
  2. Check the connections and connectors of the control circuit
  3. Test actuator resistance
  4. Check the operation of the transmission control unit
  5. Replace faulty clutch actuator if necessary

Related codes

P090BP090CP090D

Error P090A by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P090A code mean?

P090A is an OBD-II diagnostic trouble code that indicates: Clutch B Actuator Control Circuit/Open

What causes a P090A error code?

The most common causes of P090A include: Break in the actuator wiring harness; Actuator solenoid valve malfunction; Poor contact in connectors; Transmission control unit malfunction.

How do I fix a P090A diagnostic trouble code?

To fix P090A: Check the integrity of the wiring harness to the actuator. Check the connections and connectors of the control circuit. Test actuator resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P090A?

Do not drive — repair immediately

How much does it cost to fix P090A?

The estimated repair cost for P090A is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat