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B1315 Lincoln Code - Backlighting Non Reflective Controls Illumination Output Circuit Short

Quick Answer

The B1315 diagnostic trouble code (DTC) for Lincoln vehicles refers to a backlighting non-reflective controls illumination output circuit short. Common causes include Damaged wiring in the backlighting circuit, Faulty control module responsible for illuminating the controls, Blown fuse that controls the backlighting circuit. 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
B1315 Lincoln indicates Backlighting Non Reflective Controls Illumination Output Circuit Short.
Common causes
Common causes include Damaged wiring in the backlighting circuit, Faulty control module responsible for illuminating the controls, Blown fuse that controls the backlighting circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code B1315 Lincoln Description

The B1315 diagnostic trouble code (DTC) for Lincoln vehicles refers to a backlighting non-reflective controls illumination output circuit short. This code indicates that there is a short circuit in the circuit responsible for illuminating the controls and buttons that are not reflective in the vehicle. These controls are typically found on the dashboard, center console, steering wheel, and other areas where backlighting is used to make them visible in low-light conditions.

OBDII Code B1315 Lincoln - Backlighting Non Reflective Controls Illumination Output Circuit Short
B1315 Lincoln Code - Backlighting Non Reflective Controls Illumination Output Circuit Short

Common Causes of B1315 Lincoln

  1. Damaged wiring in the backlighting circuit.
  2. Faulty control module responsible for illuminating the controls.
  3. Blown fuse that controls the backlighting circuit.
  4. Malfunctioning light bulb in the controls.

Symptoms of B1315 Lincoln

  1. Backlighting on controls and buttons not working or flickering.
  2. Dim or uneven illumination of controls at night.
  3. Inability to see important controls when driving in the dark.
  4. Dashboard warning lights related to lighting system issues.

How to Fix B1315 Lincoln

  1. Begin by diagnosing the specific cause of the short circuit in the backlighting circuit using a diagnostic scanner.
  2. Check the wiring and connectors for any signs of damage or corrosion and repair or replace as needed.
  3. Test the control module and replace it if it is found to be faulty.
  4. Check and replace any blown fuses in the backlighting circuit.
  5. Inspect and replace any malfunctioning light bulbs in the controls.

Cost to Fix B1315 Lincoln

The typical repair costs for addressing a backlighting non-reflective controls illumination output circuit short can range from $150 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

What does this mean?

Tech Notes for B1315 Lincoln

B1315:11 Backlighting Non Reflective Controls Illumination Output Circuit Short To Ground

B1315:15 Backlighting Non Reflective Controls Illumination Output Circuit Short To Battery or Open

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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 B1315 Lincoln Code

1. What does the OBDII code B1315 indicate on a Lincoln?

The code B1315 indicates a problem with the backlighting of non-reflective controls. Specifically, it suggests there is a short in the illumination output circuit.

2. What symptoms might I notice if my Lincoln has the B1315 code?

Symptoms can include the backlighting for controls like the climate control and radio buttons not working properly, either by flickering or not lighting up at all.

3. What are common causes for the B1315 code in a Lincoln?

Common causes include damaged wires, faulty bulbs or LEDs, a short circuit in the control panel, or issues with the body control module.

4. How can I diagnose the B1315 code on my Lincoln?

Diagnosis involves checking the wiring and connectors for damage, testing the bulbs or LEDs for functionality, and using a multimeter to check for shorts or discontinuity in the circuit.

5. Is it safe to drive my Lincoln with the B1315 code active?

While it might not affect the drivability of the car, driving without proper backlighting on controls can be unsafe at night or in low-light conditions, as it may be difficult to operate essential functions safely.

6. What repair steps should be taken to resolve the B1315 code in a Lincoln?

Repairing this code may involve replacing faulty bulbs or LEDs, repairing or replacing damaged wiring, and possibly reprogramming or replacing the body control module if it is found to be faulty.

7. Can I fix the B1315 code on my Lincoln by myself?

If you have experience with vehicle electrical systems, you might be able to address simple issues like replacing bulbs or repairing wires. However, for more complex issues like circuit testing or module replacement, professional service is recommended.

8. How urgent is it to fix a B1315 code on a Lincoln?

It should be addressed promptly, not necessarily because it affects vehicle operation, but because it impacts the functionality and safety of vehicle controls at night.

9. Could the B1315 code affect other systems of my Lincoln?

Generally, this code is isolated to the backlighting system of non-reflective controls and does not directly affect other vehicle systems. However, underlying electrical issues could potentially have broader impacts.

10. What tools are needed to diagnose and fix the B1315 code on a Lincoln?

Tools needed may include a multimeter for electrical testing, a basic set of hand tools for accessing the control panels and components, and potentially a diagnostic scanner capable of interfacing with the vehicle’s body control module.

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