OBD Guide
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B108A

Start Button General Electrical Failure

B108A is an OBD-II diagnostic trouble code meaning: Start Button General Electrical Failure. Common causes: open or short circuit in wiring harness, start button malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • The engine does not start when the button is pressed
  • The start button does not respond to pressing
  • Flashing indicators on the instrument panel

Causes

  • Open or short circuit in wiring harness
  • Start button malfunction
  • Problems with the launch control module
  • Blown fuse
  • Poor contact in connectors

How to Fix

  1. Check fuses associated with the starting system
  2. Inspect the wiring harness for damage
  3. Check the contacts of the start button
  4. Test the start button for malfunction
  5. Check the launch control module

Related codes

B108BB108CP0513

FAQ

What does the B108A code mean?

B108A is an OBD-II diagnostic trouble code that indicates: Start Button General Electrical Failure

What causes a B108A error code?

The most common causes of B108A include: Open or short circuit in wiring harness; Start button malfunction; Problems with the launch control module; Blown fuse.

How do I fix a B108A diagnostic trouble code?

To fix B108A: Check fuses associated with the starting system. Inspect the wiring harness for damage. Check the contacts of the start button. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B108A?

Yes, but get it checked soon

How much does it cost to fix B108A?

The estimated repair cost for B108A is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat