OBD Guide
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B15C5

Manual Button Malfunction

B15C5 is an OBD-II diagnostic trouble code meaning: Manual Button Malfunction. Common causes: mechanical wear of the button, wiring harness damage. Estimated repair cost: $56–167.

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

Symptoms

  • Manual control button does not work
  • Check Engine light comes on
  • Problem with the system associated with the button

Causes

  • Mechanical wear of the button
  • Wiring harness damage
  • Control module software failure

How to Fix

  1. Check the status of the button and its connection
  2. Inspect the wiring harness for damage
  3. If necessary, reflash the control module

Related codes

B15C4B15C6

FAQ

What does the B15C5 code mean?

B15C5 is an OBD-II diagnostic trouble code that indicates: Manual Button Malfunction

What causes a B15C5 error code?

The most common causes of B15C5 include: Mechanical wear of the button; Wiring harness damage; Control module software failure.

How do I fix a B15C5 diagnostic trouble code?

To fix B15C5: Check the status of the button and its connection. Inspect the wiring harness for damage. If necessary, reflash the control module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B15C5?

Do not drive — repair immediately

How much does it cost to fix B15C5?

The estimated repair cost for B15C5 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat