AutoCodes – Lincoln – B108A Lincoln

B108A Lincoln Code - Start Button General Electrical Failure

Quick Answer

Conventional Ignition Switch: The ignition switch is a multiple position rotary switch that is controlled by a lock cylinder and a key. Common causes include Faulty Start Button Switch, Start Button Switch harness is open or shorted, Start Button Switch circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: B108A Lincoln indicates Start Button General Electrical Failure.
Common causes: Common causes include Faulty Start Button Switch, Start Button Switch harness is open or shorted, Start Button Switch circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 2,488

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 18, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B108A Lincoln Description

Conventional Ignition Switch:
The ignition switch is a multiple position rotary switch that is controlled by a lock cylinder and a key. The ignition switch provides voltage to the ACC, ON, or START-designated circuits depending on the position it is placed. The Body Control Module (BCM) calculates the positions based on the voltage received from the ACC and ON-designated circuits.
The key removal inhibit solenoid (also known as the key release interlock actuator) is an electronically controlled solenoid that prevents the ignition lock cylinder from being turned to the OFF position unless the gear selector lever is in the PARK position. The key removal inhibit solenoid is part of the ignition switch.

Push Button Ignition Switch:
The push button ignition switch is used instead of a conventional ignition switch to achieve the various ignition modes. The push button ignition switch is a momentary dual contact switch. Both sets of contacts are normally open and receive the voltage at all times. When the START/STOP button is pressed, the voltage is sent to the BCM, the RFA module, and the PCM to indicate a button press.
The ignition switch has a LED for switch illumination when the backlighting is activated.

OBDII Code B108A Lincoln - Start Button General Electrical Failure - AutoCodes.com — B108A Lincoln Code - Start Button General Electrical Failure

What does this mean?

What are the Possible Causes of the DTC B108A Lincoln?

Faulty Start Button Switch
Start Button Switch harness is open or shorted
Start Button Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B108A Lincoln?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B108A Lincoln code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B108A Lincoln Code

1. What are the common symptoms of OBDII code B108A in a Lincoln related to Start Button General Electrical Failure?

- Common symptoms include the inability to start the vehicle using the start button, intermittent starting issues, and electrical malfunctions.

2. What are the possible causes of OBDII code B108A in a Lincoln related to Start Button General Electrical Failure?

- Possible causes may include a faulty start button, issues with the electrical system such as wiring or connections, or a malfunctioning control module.

3. How can I diagnose the OBDII code B108A in a Lincoln related to Start Button General Electrical Failure?

- Diagnosing this code may involve checking the start button functionality, inspecting the wiring and connections, and using a diagnostic scanner to read the code and related data.

4. Is it safe to continue driving with OBDII code B108A in a Lincoln related to Start Button General Electrical Failure?

- It is not recommended to continue driving with this code active, as it may lead to potential starting issues or electrical failures while on the road.

5. Can I repair OBDII code B108A in a Lincoln related to Start Button General Electrical Failure myself?

- Depending on your skill level and access to tools, you may be able to address this issue yourself by checking the start button, inspecting wiring, and potentially replacing faulty components.

6. How much does it typically cost to repair OBDII code B108A in a Lincoln related to Start Button General Electrical Failure?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from a few hundred to a thousand dollars if professional help is required.

7. Are there any simple troubleshooting steps I can take for OBDII code B108A in a Lincoln related to Start Button General Electrical Failure?

- You can start by checking the start button for any visible damage, ensuring all connections are secure, and resetting the vehicle's electrical system by disconnecting the battery for a few minutes.

8. Can weather conditions affect the occurrence of OBDII code B108A in a Lincoln related to Start Button General Electrical Failure?

- Extreme weather conditions, such as excessive heat or moisture, can potentially exacerbate electrical issues leading to this code. It's important to keep your vehicle protected and maintained.

9. Will OBDII code B108A in a Lincoln related to Start Button General Electrical Failure reset on its own?

- In some cases, the code may reset on its own after a few successful start attempts or if the underlying issue is resolved. However, it's recommended to diagnose and address the problem promptly.

10. How long does it typically take to repair OBDII code B108A in a Lincoln related to Start Button General Electrical Failure?

- The repair time can vary based on the cause of the issue and the complexity of the repair needed. It may range from a quick fix that can be done in a few hours to a more involved repair requiring a day or more.