OBD Guide
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P0636

Power Steering Control Circuit Low

P0636 is an OBD-II diagnostic trouble code meaning: Power Steering Control Circuit Low. Common causes: open or short circuit in the power steering control circuit, oxidation or damage to the power steering module connectors. Estimated repair cost: $17–556.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$17–556 (est.)

Symptoms

  • Heavy steering, especially at low speeds
  • Check Engine light comes on
  • The power steering (EPS/EPAS) indicator may be on.
  • Power steering is intermittent or cuts out
  • Creaks or strange sounds when turning the steering wheel

Causes

  • Open or short circuit in the power steering control circuit
  • Oxidation or damage to the power steering module connectors
  • Electric Power Steering (EPS) module malfunction
  • Low on-board voltage (discharged battery)
  • ECU malfunction

How to Fix

  1. Check battery voltage and terminal condition
  2. Inspect the power steering control circuit wiring and connectors for damage and oxidation.
  3. Measure the voltage in the control circuit according to the electrical diagram
  4. Check the integrity of the fuses associated with the power steering system
  5. If the wiring is correct - diagnostics and replacement of the EPS module
  6. If necessary, update or replace the ECU

Related codes

P0637P0600P0604C0710

Error P0636 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0636 code mean?

P0636 is an OBD-II diagnostic trouble code that indicates: Power Steering Control Circuit Low

What causes a P0636 error code?

The most common causes of P0636 include: Open or short circuit in the power steering control circuit; Oxidation or damage to the power steering module connectors; Electric Power Steering (EPS) module malfunction; Low on-board voltage (discharged battery).

How do I fix a P0636 diagnostic trouble code?

To fix P0636: Check battery voltage and terminal condition. Inspect the power steering control circuit wiring and connectors for damage and oxidation.. Measure the voltage in the control circuit according to the electrical diagram. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0636?

Do not drive — repair immediately

How much does it cost to fix P0636?

The estimated repair cost for P0636 is $17–556. Actual cost depends on your vehicle, location, and labor rates.

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