B108A Code - Start Button General Electrical Failure
Quick Answer
The B108A diagnostic trouble code (DTC) indicates a general electrical failure in the start button of the vehicle. Common causes include Faulty start button switch: The start button switch may be worn out or damaged, preventing it from sending the proper signal to the ECM, Wiring issues: Loose connections, damaged wiring, or corrosion in the electrical system can cause a general electrical failure in the start button, Malfunctioning ECM: A malfunctioning ECM may not receive the signal from the start button, leading to starting issues. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B108A indicates Start Button General Electrical Failure.
- Common causes
- Common causes include Faulty start button switch: The start button switch may be worn out or damaged, preventing it from sending the proper signal to the ECM, Wiring issues: Loose connections, damaged wiring, or corrosion in the electrical system can cause a general electrical failure in the start button, Malfunctioning ECM: A malfunctioning ECM may not receive the signal from the start button, leading to starting issues.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B108A Description
The B108A diagnostic trouble code (DTC) indicates a general electrical failure in the start button of the vehicle. This code is typically found in vehicles equipped with keyless ignition systems, where a start button is used to start the engine instead of a traditional key. When this code is triggered, it means that the start button is not functioning properly, which can prevent the vehicle from starting or cause intermittent starting issues.
Common Causes of B108A
- Faulty start button switch: The start button switch may be worn out or damaged, preventing it from sending the proper signal to the ECM.
- Wiring issues: Loose connections, damaged wiring, or corrosion in the electrical system can cause a general electrical failure in the start button.
- Malfunctioning ECM: A malfunctioning ECM may not receive the signal from the start button, leading to starting issues.
- Weak battery: A weak or failing battery can affect the electrical system's ability to start the vehicle.
- Water damage: Water intrusion into the start button or surrounding components can cause electrical failures.
Symptoms of B108A
- Intermittent starting issues: The vehicle may start sometimes but fail to start on other occasions.
- Inability to start: The vehicle may not start at all when the start button is pressed.
- Dashboard warning lights: The dashboard may display warning lights related to the start button or electrical system.
- Clicking sound: A clicking sound may be heard when attempting to start the vehicle.
- Loss of power: The vehicle may experience a loss of power or electrical functions due to the start button failure.
How to Fix B108A
- Diagnostic scan: Use a diagnostic scan tool to retrieve the DTC and pinpoint the source of the electrical failure.
- Inspect wiring: Check the wiring harness for any damage, corrosion, or loose connections. Repair or replace as needed.
- Test start button switch: Test the start button switch for continuity and proper function. Replace if faulty.
- Check ECM: Inspect the ECM for any signs of damage or malfunction. Replace if necessary.
- Battery test: Perform a battery test to ensure it is providing sufficient power to the electrical system. Replace the battery if it is weak or failing.
Cost to Fix B108A
The cost of repairing a B108A start button general electrical failure can vary depending on the specific cause of the issue and the vehicle's make and model. In general, the repair costs for this issue can range from $100 to $500, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Factors such as location, vehicle type, and dealership vs. independent shop can also affect the overall repair cost. It is recommended to obtain a detailed estimate from a trusted auto repair shop to determine the exact cost for your specific situation.
Need more information about the B108A code?
Need more information on how to fix the B108A code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B108A code diagnosed by a professional: Find a repair shop in your area
Code B108A Information for Specific Makes
- B108A Ford — Start Button General Electrical Failure
- B108A Lincoln — Start Button General Electrical Failure
- B108A Mercury — Start Button General Electrical Failure
Frequently Asked Questions about B108A Code
1. What are the common symptoms of OBDII code B108A, Start Button General Electrical Failure?
- Common symptoms include difficulty starting the vehicle, intermittent starting issues, and a non-responsive start button.
2. What are the possible causes of OBDII code B108A, Start Button General Electrical Failure?
- The code B108A can be triggered by a faulty start button, issues with the ignition system, wiring problems, or a weak car battery.
3. How can I diagnose OBDII code B108A, Start Button General Electrical Failure?
- Diagnosing this code usually involves checking the start button functionality, inspecting the ignition system, testing the battery voltage, and scanning for other related codes.
4. Can a weak car battery trigger OBDII code B108A, Start Button General Electrical Failure?
- Yes, a weak or failing car battery can cause voltage fluctuations that may trigger the B108A code due to insufficient power to the start button.
5. How can I repair OBDII code B108A, Start Button General Electrical Failure?
- Repairing this code may involve replacing the faulty start button, fixing any wiring issues, ensuring a strong battery connection, or addressing any underlying electrical problems.
6. Is it safe to continue driving with OBDII code B108A, Start Button General Electrical Failure?
- It is not recommended to drive the vehicle with this code present, as it can lead to potential starting failures and inconvenience on the road.
7. Can a DIY enthusiast fix OBDII code B108A, Start Button General Electrical Failure?
- Depending on the underlying cause, some DIY enthusiasts may be able to troubleshoot and repair this code themselves, especially if it involves simple tasks like checking the battery or replacing the start button.
8. Will resetting the OBDII code B108A, Start Button General Electrical Failure make it go away permanently?
- Resetting the code may temporarily clear it, but if the underlying issue is not fixed, the code is likely to reappear after some time.
9. Do I need a professional mechanic to diagnose OBDII code B108A, Start Button General Electrical Failure?
- While some basic troubleshooting can be done by DIYers, for a thorough diagnosis and repair, it is recommended to consult a professional mechanic with experience in automotive electrical systems.
10. Are there any preventive measures to avoid OBDII code B108A, Start Button General Electrical Failure in the future?
- Regular maintenance of the vehicle's electrical system, including checking the battery health and addressing any starting issues promptly, can help prevent the recurrence of this code.
Discuss the causes and fixes for B108A OBDII Code
Code B108A comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.