C0631 Front axle disconnect actuator fault (Ford AWD)

Front axle disconnect actuator

Severity not verified — if the car runs badly, have it inspected

The sources describe the wrench light and AWD loss but do not rate drive safety.

Source: how we rate severity

C0631 in short

On Ford AWD vehicles, C0631 points to the front axle disconnect actuator. Ford bulletins for 2020-2021 Explorers and Aviators tie it to a wrench light and a failed actuator and intermediate shaft. Owners report losing all-wheel drive. A dealer should confirm it.

Some Ford AWD vehicles can disconnect the front axle to save fuel. A small actuator on the intermediate shaft engages or releases it. C0631 is the code for a fault in that actuator.

Ford bulletins for 2020-2021 Explorers and Aviators describe a wrench light with C00A6 and/or C0631, and replace the actuator with a revised intermediate shaft. Several Explorer owners report the same, with AWD no longer working.

The bulletin is one publisher, and the code meaning comes from an owner readout and a reference page, so the cause on other Ford models is not confirmed.

Pick your make

C0631 is a manufacturer-specific code: its meaning depends on who built the car.

Other makes: meaning not verified. Check with a scan tool that reads manufacturer definitions.

Most likely causes

  1. Front axle disconnect actuator and intermediate shaft

    Supported by vehicle data
    Why it ranks here
    Ford bulletin summaries and owner reports name this assembly on 2020-2021 AWD Explorers. The bulletins are unverified cache entries.
    What would change this
    Rises if the vehicle is a 2020-2021 AWD Explorer or Aviator built before late August 2021. Falls on other models.

What to test first

Start at step 1. Each result tells you what it means and where to go next.

  1. Have a scan tool read the powertrain and AWD codes. Note whether C00A6 is stored with C0631.

    Low riskTool: scan tool

    • IfC0631 with C00A6 on a 2020-2021 AWD Explorer or Aviator

      It meansThis matches the Ford bulletin pattern.

      Go to step 2

    • IfC0631 on another Ford model

      It meansThe cause is not confirmed; follow the dealer diagnosis.

      Go to step 2

  2. Ask a Ford dealer to check the current bulletin and diagnose the front axle disconnect actuator.

    Best left to a shopTool: dealer service information

    Warning:The intermediate shaft sits under the vehicle near the front axle. Do not work under a raised vehicle without proper stands. Leave it to a technician.

Symptoms

  • Wrench light on
  • AWD not available, vehicle stays in two-wheel drive

How to fix

Parts and cost context

  • Front axle disconnect actuator and intermediate shaft:Ford bulletins replace the assembly with a revised intermediate shaft. Labor varies; get a quote.

Labor varies by vehicle and shop; get a quote before you approve a repair.

Compare used part prices on PartPriceGuide

On your vehicle

Ford

  • 2020–2021 · Explorer

    Supported by vehicle data

    Ford bulletin summaries tie C0631 to the wrench light and a failed actuator and intermediate shaft on AWD vehicles built before late August 2021. Many owners report the same.

  • TSB 23-2114Status unverified

    Ford TSB 23-2114: AWD wrench light with C00A6 and/or C0631

    2020–2021explorer · NHTSA 10234127

    Ford says some 2020-2021 AWD Explorers and Aviators built before late August 2021 can show the wrench light with C00A6 and/or C0631, and the fix is replacing the front axle disconnect actuator with a revised intermediate shaft. A later revision supersedes the earlier one.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 23-2174Status unverified

    Ford TSB 23-2174: AWD wrench light with C00A6 and/or C0631

    2020–2021explorer · NHTSA 10240240

    Ford says some 2020-2021 AWD Explorers and Aviators built before late August 2021 can show the wrench light with C00A6 and/or C0631, and the fix is replacing the front axle disconnect actuator with a revised intermediate shaft. A later revision supersedes the earlier one.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 25-2373Status unverified

    Ford TSB 25-2373: AWD wrench light with C00A6 and/or C0631

    2020–2021explorer · NHTSA 11022389

    Ford says some 2020-2021 AWD Explorers and Aviators built before late August 2021 can show the wrench light with C00A6 and/or C0631, and the fix is replacing the front axle disconnect actuator with a revised intermediate shaft. A later revision supersedes the earlier one.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 25-2568Status unverified

    Ford TSB 25-2568: AWD wrench light with C00A6 and/or C0631

    2020–2021explorer · NHTSA 11027608

    Ford says some 2020-2021 AWD Explorers and Aviators built before late August 2021 can show the wrench light with C00A6 and/or C0631, and the fix is replacing the front axle disconnect actuator with a revised intermediate shaft. A later revision supersedes the earlier one.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 25-2568 V2Status unverified

    Ford TSB 25-2568 V2: AWD wrench light with C00A6 and/or C0631

    2020–2021explorer · NHTSA 11037671

    Ford says some 2020-2021 AWD Explorers and Aviators built before late August 2021 can show the wrench light with C00A6 and/or C0631, and the fix is replacing the front axle disconnect actuator with a revised intermediate shaft. A later revision supersedes the earlier one.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Lincoln

  • TSB 23-2114 (lincoln)Status unverified

    Ford TSB 23-2114 for Lincoln Aviator: AWD wrench light with C00A6 and/or C0631

    2020–2021aviator · NHTSA 10234127

    The same Ford bulletin lists the 2020-2021 Lincoln Aviator with AWD, wrench light and C00A6 and/or C0631, with the same actuator and shaft replacement.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 23-2174 (lincoln)Status unverified

    Ford TSB 23-2174 for Lincoln Aviator: AWD wrench light with C00A6 and/or C0631

    2020–2021aviator · NHTSA 10240240

    The same Ford bulletin lists the 2020-2021 Lincoln Aviator with AWD, wrench light and C00A6 and/or C0631, with the same actuator and shaft replacement.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 25-2373 (lincoln)Status unverified

    Ford TSB 25-2373 for Lincoln Aviator: AWD wrench light with C00A6 and/or C0631

    2020–2021aviator · NHTSA 11022389

    The same Ford bulletin lists the 2020-2021 Lincoln Aviator with AWD, wrench light and C00A6 and/or C0631, with the same actuator and shaft replacement.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 25-2568 (lincoln)Status unverified

    Ford TSB 25-2568 for Lincoln Aviator: AWD wrench light with C00A6 and/or C0631

    2020–2021aviator · NHTSA 11027608

    The same Ford bulletin lists the 2020-2021 Lincoln Aviator with AWD, wrench light and C00A6 and/or C0631, with the same actuator and shaft replacement.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 25-2568 V2 (lincoln)Status unverified

    Ford TSB 25-2568 V2 for Lincoln Aviator: AWD wrench light with C00A6 and/or C0631

    2020–2021aviator · NHTSA 11037671

    The same Ford bulletin lists the 2020-2021 Lincoln Aviator with AWD, wrench light and C00A6 and/or C0631, with the same actuator and shaft replacement.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

No curated relationships for C0631 yet.

All Drivetrain, 4WD and AWD codes

C0631 questions

Can I drive with C0631?

Owners report it drives but without all-wheel drive. The sources do not rate drive safety, so ask a dealer.

Sources and review

  1. Ford TSB 23-2114 and later revisions 23-2174, 25-2373, 25-2568 (cache summaries) — Ford Motor Company via NHTSA
  2. NHTSA complaint ODI 11600651 and others (2020 Ford Explorer) — NHTSA ODI
  3. OBD code C0631 — RecallCheck
Last reviewed
Written by
Saurabh K.
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