B2556
Push-Button Ignition Switch
B2556 is an OBD-II diagnostic trouble code meaning: Push-Button Ignition Switch. Common causes: worn or damaged start button, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- The engine does not start when the button is pressed
- Check Engine light comes on
- Intermittent failures when starting the engine
Causes
- Worn or damaged start button
- Open or short circuit in wiring harness
- Engine control unit (ECU) malfunction
- Problems with power or grounding of the circuit
How to Fix
- Check the condition of the start button for mechanical damage
- Scan the wiring harness for opens or shorts
- Check voltage and grounding in the button circuit
- If necessary, replace the start button or wiring harness
- Test the engine control unit
Related codes
FAQ
What does the B2556 code mean?
B2556 is an OBD-II diagnostic trouble code that indicates: Push-Button Ignition Switch
What causes a B2556 error code?
The most common causes of B2556 include: Worn or damaged start button; Open or short circuit in wiring harness; Engine control unit (ECU) malfunction; Problems with power or grounding of the circuit.
How do I fix a B2556 diagnostic trouble code?
To fix B2556: Check the condition of the start button for mechanical damage. Scan the wiring harness for opens or shorts. Check voltage and grounding in the button circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2556?
Limited driving only, diagnose soon
How much does it cost to fix B2556?
The estimated repair cost for B2556 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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