OBD Guide
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C00A1

Driveline Control Module

C00A1 is an OBD-II diagnostic trouble code meaning: Driveline Control Module. Common causes: control module software failure, wiring harness damage. Estimated repair cost: $111–333.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$111–333 (est.)

Symptoms

  • Switching to emergency mode
  • Decreased performance
  • Check Engine light comes on
  • Gear shifting problems

Causes

  • Control module software failure
  • Wiring harness damage
  • Transmission control module malfunction
  • Module power problems

How to Fix

  1. Diagnose the transmission control module
  2. Check wiring harness for damage
  3. Update module software
  4. If necessary, replace the control module

Related codes

P0700P0701P0702

Error C00A1 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the C00A1 code mean?

C00A1 is an OBD-II diagnostic trouble code that indicates: Driveline Control Module

What causes a C00A1 error code?

The most common causes of C00A1 include: Control module software failure; Wiring harness damage; Transmission control module malfunction; Module power problems.

How do I fix a C00A1 diagnostic trouble code?

To fix C00A1: Diagnose the transmission control module. Check wiring harness for damage. Update module software. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C00A1?

Limited driving only, diagnose soon

How much does it cost to fix C00A1?

The estimated repair cost for C00A1 is $111–333. Actual cost depends on your vehicle, location, and labor rates.

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