OBD Guide
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B23C1

Stop/Start Disable Switch 2 Circuit Low

B23C1 is an OBD-II diagnostic trouble code meaning: Stop/Start Disable Switch 2 Circuit Low. Common causes: start/stop switch malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Disabling the start/stop system
  • Check Engine light comes on
  • Unstable engine operation at idle

Causes

  • Start/stop switch malfunction
  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • Power or grounding problems

How to Fix

  1. Check the status of the start/stop switch
  2. Inspect the wiring harness for damage
  3. Check contacts in connectors
  4. Check voltage and grounding in the circuit
  5. Replace faulty components

Related codes

B23C0B23C2P0562

FAQ

What does the B23C1 code mean?

B23C1 is an OBD-II diagnostic trouble code that indicates: Stop/Start Disable Switch 2 Circuit Low

What causes a B23C1 error code?

The most common causes of B23C1 include: Start/stop switch malfunction; Open or short circuit in wiring harness; Poor contact in connectors; Power or grounding problems.

How do I fix a B23C1 diagnostic trouble code?

To fix B23C1: Check the status of the start/stop switch. Inspect the wiring harness for damage. Check contacts in connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B23C1?

Limited driving only, diagnose soon

How much does it cost to fix B23C1?

The estimated repair cost for B23C1 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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