OBD Guide
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C0146

Left TCS Solenoid #2 Circuit Malfunction

C0146 is an OBD-II diagnostic trouble code meaning: Left TCS Solenoid #2 Circuit Malfunction. Common causes: open or short circuit in solenoid circuit, faulty tcs solenoid. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–167 (est.)

Symptoms

  • Check Engine Light Is On
  • The TCS system does not work or does not work correctly
  • Reduced braking efficiency when slipping

Causes

  • Open or short circuit in solenoid circuit
  • Faulty TCS solenoid
  • Wiring harness damage
  • Connector problems or contact corrosion
  • TCS control unit malfunction

How to Fix

  1. Check the continuity of the solenoid circuit with a multimeter
  2. Inspect the wiring harness and connectors for damage.
  3. Check the solenoid resistance (compare with the standard)
  4. Replace TCS solenoid if necessary
  5. Clean or replace damaged connectors
  6. Reset the error and take a test drive

Related codes

C0145C0147C0128

Error C0146 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the C0146 code mean?

C0146 is an OBD-II diagnostic trouble code that indicates: Left TCS Solenoid #2 Circuit Malfunction

What causes a C0146 error code?

The most common causes of C0146 include: Open or short circuit in solenoid circuit; Faulty TCS solenoid; Wiring harness damage; Connector problems or contact corrosion.

How do I fix a C0146 diagnostic trouble code?

To fix C0146: Check the continuity of the solenoid circuit with a multimeter. Inspect the wiring harness and connectors for damage.. Check the solenoid resistance (compare with the standard). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0146?

Do not drive — repair immediately

How much does it cost to fix C0146?

The estimated repair cost for C0146 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat