OBD Guide
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B112B

Steering Wheel Module Missing Message

B112B is an OBD-II diagnostic trouble code meaning: Steering Wheel Module Missing Message. Common causes: broken or damaged wiring harness, faulty steering wheel module. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Steering wheel buttons not working
  • CHECK or SRS (airbag) light comes on
  • Cruise control system malfunction

Causes

  • Broken or damaged wiring harness
  • Faulty steering wheel module
  • Power or grounding problems
  • Short circuit in the circuit
  • Module software error

How to Fix

  1. Check wiring harness for damage
  2. Diagnose the steering wheel module with a scanner
  3. Check fuses and relays
  4. Replace the module if necessary
  5. Reflash the module (if the problem is in the software)

Related codes

B112AB112CU0121

FAQ

What does the B112B code mean?

B112B is an OBD-II diagnostic trouble code that indicates: Steering Wheel Module Missing Message

What causes a B112B error code?

The most common causes of B112B include: Broken or damaged wiring harness; Faulty steering wheel module; Power or grounding problems; Short circuit in the circuit.

How do I fix a B112B diagnostic trouble code?

To fix B112B: Check wiring harness for damage. Diagnose the steering wheel module with a scanner. Check fuses and relays. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B112B?

Do not drive — repair immediately

How much does it cost to fix B112B?

The estimated repair cost for B112B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat