AutoCodes – Lincoln – B1310 Lincoln

B1310 Lincoln Code - Run/Start Control Circuit Short to Ground or Open

Quick Answer

When the ignition switch is turned to the RUN position, a voltage signal is sent to the Body Control Module (BCM). Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition Switch circuit poor electrical connection. 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: B1310 Lincoln indicates Run/Start Control Circuit Short to Ground or Open.
Common causes: Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition Switch circuit poor electrical connection.
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 Popularity 1,549

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1310 Lincoln Description

When the ignition switch is turned to the RUN position, a voltage signal is sent to the Body Control Module (BCM). The BCM then activates the run/start relay and the run/acc relay, which distribute fused voltage to various components. The run/acc relay is serviced as part of the BCM. the BCM continuously monitors the control side of the run/start relay. This Diagnostic Trouble Code (DTC) sets if the BCM detects an open or a short to ground on the control circuit. The BCM uses a Field-Effect Transistor (FET) to control the run/start relay. When this DTC sets, the control side of the run/start relay is disabled via the FET. Once the condition that caused the DTC to set is repaired, the BCM must pass a self-test in order for the DTC to clear and the system to resume normal operation.

OBDII Code B1310 Lincoln - Run/Start Control Circuit Short to Ground or Open - AutoCodes.com — B1310 Lincoln Code - Run/Start Control Circuit Short to Ground or Open

What does this mean?

What are the Possible Causes of the DTC B1310 Lincoln?

Faulty Ignition Switch
Ignition Switch harness is open or shorted
Ignition Switch circuit poor electrical connection
Faulty Run/Start Relay
Faulty Body Control Module (BCM

How to Fix the DTC B1310 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 B1310 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 B1310 Lincoln Code

1. What does the OBDII code B1310 indicate on a Lincoln vehicle?

The B1310 code signifies a malfunction in the Run/Start control circuit, indicating a short to ground or an open circuit. This circuit is crucial for managing the vehicle's ignition and accessory power modes.

2. What might cause a B1310 code to appear on my Lincoln?

Common causes include damaged wiring, faulty switches (such as the ignition switch), or issues with the Body Control Module (BCM) that disrupt the run/start control circuit.

3. What symptoms might I notice if my Lincoln has a B1310 code?

Symptoms can include the vehicle failing to start, the engine stalling shortly after starting, or electrical accessories malfunctioning. In some cases, no noticeable symptoms may be present.

4. How can I diagnose the B1310 code on a Lincoln?

Diagnosis should begin with a visual inspection of all related wiring and connectors for damage or disconnections. Use a multimeter to check for shorts to ground or open circuits. Additionally, testing the relevant switches and the BCM with a diagnostic scanner can help pinpoint the issue.

5. Can I drive my Lincoln with the B1310 code?

While it might be possible to drive, it is not advisable as the issue can affect the vehicle's ability to start or run reliably. Addressing the issue promptly will help prevent potential further complications.

6. What are the repair steps for fixing a B1310 code on a Lincoln?

Repair typically involves either repairing or replacing damaged wires or connectors in the run/start control circuit. It might also require replacing faulty components like the ignition switch or the BCM, depending on the diagnosis.

7. How urgent is it to address a B1310 code on my Lincoln?

It is fairly urgent to address this code because the run/start control circuit is critical for proper vehicle operation. Ignoring this issue could lead to the vehicle becoming inoperable or experiencing unexpected shutdowns while driving.

8. What tools are necessary to diagnose the B1310 code on a Lincoln?

You will need a multimeter to measure voltage and resistance, a diagnostic scanner to read and interpret BCM codes, and basic hand tools for accessing the circuit components.

9. Is the B1310 code specific only to Lincoln vehicles?

No, the B1310 code can appear on various brands and models, but the specific implications and symptoms might vary slightly depending on the vehicleâ€™s make and model. Each manufacturer may have different configurations and typical fault points.

10. How can I prevent future B1310 codes on my Lincoln?

Regular maintenance of your vehicleâ€™s electrical system is key. Ensure that all wiring is protected and in good condition, connectors are tight and corrosion-free, and components like the ignition switch and BCM are checked periodically.