OBD Guide
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B2745

Traction Control Switch Circuit

B2745 is an OBD-II diagnostic trouble code meaning: Traction Control Switch Circuit. Common causes: broken or damaged wiring harness, poor contact in tcs switch connector. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Check Engine Light Is On
  • Traction control system does not work
  • Reduced braking performance on slippery surfaces

Causes

  • Broken or damaged wiring harness
  • Poor contact in TCS switch connector
  • TCS switch malfunction
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the contacts in the TCS switch connector
  3. Test TCS switch
  4. Replace TCS switch if necessary
  5. Reset the error and check the system

Related codes

B2750B2740C0245

FAQ

What does the B2745 code mean?

B2745 is an OBD-II diagnostic trouble code that indicates: Traction Control Switch Circuit

What causes a B2745 error code?

The most common causes of B2745 include: Broken or damaged wiring harness; Poor contact in TCS switch connector; TCS switch malfunction; Problems with the engine control unit (ECU).

How do I fix a B2745 diagnostic trouble code?

To fix B2745: Check the integrity of the wiring harness. Check the contacts in the TCS switch connector. Test TCS switch. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2745?

Limited driving only, diagnose soon

How much does it cost to fix B2745?

The estimated repair cost for B2745 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat