B108B Code - Start Button Circuit 'A'
Quick Answer
The B108B diagnostic trouble code (DTC) relates to the Start Button Circuit 'A' in the vehicle. Common causes include Faulty start button, Wiring issues in the start button circuit, Loose or corroded electrical connections. 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
- B108B indicates Start Button Circuit 'A'.
- Common causes
- Common causes include Faulty start button, Wiring issues in the start button circuit, Loose or corroded electrical connections.
- 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.
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Code B108B Description
The B108B diagnostic trouble code (DTC) relates to the Start Button Circuit 'A' in the vehicle. This code indicates that there is an issue with the circuit that controls the start button, which is responsible for initiating the engine starting process. The start button is a crucial component of the vehicle's ignition system, and any malfunction in this circuit can prevent the engine from starting properly. This can lead to a scenario where the vehicle fails to start or experiences difficulty in starting.
Common Causes of B108B
- Faulty start button.
- Wiring issues in the start button circuit.
- Loose or corroded electrical connections.
- Faulty ignition switch.
- Electrical short circuits.
Symptoms of B108B
- Engine cranks but does not start.
- Intermittent starting issues.
- Start button is unresponsive.
- Engine stalls immediately after starting.
- Dashboard warning light related to the start button.
How to Fix B108B
- Begin by diagnosing the specific cause of the issue, such as testing the start button, checking wiring connections, and inspecting the ignition switch.
- Replace the faulty start button or ignition switch if necessary.
- Repair or replace any damaged wiring or electrical connections.
- Clear the DTC using a diagnostic scanner to reset the system.
- Test the start button circuit to ensure proper functionality before reassembling the vehicle.
Cost to Fix B108B
The cost of repairing the Start Button Circuit 'A' issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, the repair costs for this type of issue can range from $100 to $300, including parts and labor. It's important to note that additional diagnostic time may be needed to pinpoint the exact cause of the problem, which can impact the overall cost of the repair. Be sure to consult with a professional mechanic to get an accurate estimate for your specific vehicle.
Tech Notes for B108B
B108B:24 Start Button Circuit 'A' Signal Stuck High
B108B:2F Start Button Circuit 'A' Signal Erratic
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Code B108B Information for Specific Makes
- B108B Ford — Start Button Circuit 'A'
- B108B Lincoln — Start Button Circuit 'A'
- B108B Mercury — Start Button Circuit 'A'
Frequently Asked Questions about B108B Code
1. What are the common symptoms of OBDII code B108B (Start Button Circuit 'A')?
- Common symptoms include the inability to start the vehicle using the start button, intermittent starting issues, and the engine not turning over.
2. What are the possible causes of OBDII code B108B?
- Possible causes of this code include a faulty start button, damaged wiring or connectors in the start button circuit, or a problem with the start button control module.
3. How can I diagnose the issue related to OBDII code B108B?
- A thorough inspection of the start button, wiring, and connectors is recommended. Testing the start button circuit for continuity and checking for any visible damage can help pinpoint the issue.
4. Can I continue driving my vehicle with OBDII code B108B present?
- It is not advisable to continue driving the vehicle with this code present, as it can lead to potential starting issues and may leave you stranded.
5. How can I repair OBDII code B108B?
- Repairing this code typically involves replacing the faulty start button, repairing or replacing damaged wiring or connectors, or addressing any issues with the start button control module.
6. Are there any DIY tips for fixing OBDII code B108B?
- DIY tips include carefully inspecting the start button and surrounding wiring for any visible damage, ensuring all connections are secure, and consulting the vehicle's repair manual for specific troubleshooting steps.
7. Can a malfunctioning battery cause OBDII code B108B to appear?
- Yes, a weak or failing battery can sometimes trigger this code due to insufficient power reaching the start button circuit. It's recommended to check the battery's condition as part of the diagnosis.
8. Is it possible for a loose connection to trigger OBDII code B108B?
- Yes, a loose or poor connection in the start button circuit can cause this code to appear. It's important to check all connections for tightness and corrosion during diagnosis.
9. Will resetting the OBDII code B108B make it go away permanently?
- Resetting the code may temporarily clear it, but if the underlying issue is not addressed, the code is likely to reappear. It's crucial to diagnose and repair the root cause of the problem.
10. How long does it typically take to repair OBDII code B108B?
- The repair time can vary depending on the exact cause of the issue and the availability of parts. In general, it may take a few hours to a day to diagnose and repair this code effectively.
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