Engine-CodesFord – B1693 Ford

B1693 Ford Code - Autolamp On Circuit Failure

Quick Answer

The B1693 Ford code refers to an Autolamp On Circuit Failure. Common causes include Faulty wiring or connections in the autolamp circuit, Malfunctioning light sensor, Defective headlight control module. 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
B1693 Ford indicates Autolamp On Circuit Failure.
Common causes
Common causes include Faulty wiring or connections in the autolamp circuit, Malfunctioning light sensor, Defective headlight control module.
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.
Table of contents Created and updated by William Orellana on Sep 29, 2024
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Code B1693 Ford Description

The B1693 Ford code refers to an Autolamp On Circuit Failure. This code indicates that there is a malfunction in the circuit responsible for controlling the automatic headlights on the vehicle. The automatic headlight system is designed to turn the headlights on and off based on ambient light conditions, providing convenience and safety for the driver. When this circuit fails, it can lead to issues with the automatic headlight function, potentially causing the headlights to not turn on when needed or to stay on when not necessary.

OBDII Code B1693 Ford - Autolamp On Circuit Failure
B1693 Ford Code - Autolamp On Circuit Failure

Common Causes of B1693 Ford

  1. Faulty wiring or connections in the autolamp circuit.
  2. Malfunctioning light sensor.
  3. Defective headlight control module.
  4. Issue with the body control module.
  5. Water damage or corrosion in the circuit components.

Symptoms of B1693 Ford

  1. Automatic headlights not turning on/off as expected.
  2. Dashboard warning light indicating headlight system malfunction.
  3. Headlights staying on even in bright daylight.
  4. Headlights not turning on in low-light conditions.
  5. Battery drain due to headlights remaining on when the vehicle is parked.

How to Fix B1693 Ford

  1. Perform a thorough inspection of the autolamp circuit and wiring for any visible damage or loose connections.
  2. Test the light sensor to ensure it is functioning correctly.
  3. Check the headlight control module for any signs of malfunction and replace if necessary.
  4. Scan the vehicle's computer system for error codes and reset the system after repairs.
  5. Test the automatic headlight function to verify that the issue has been resolved.

Cost to Fix B1693 Ford

The typical repair costs for addressing an Autolamp On Circuit Failure can range from $150 to $400, depending on the specific cause of the issue and the parts needed for repair. This estimate includes parts and labor. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor. Rates may be higher at dealerships or in metropolitan areas, while independent shops often offer lower rates. It's recommended to obtain quotes from local shops to get a more accurate estimate for this repair.

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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 B1693 Ford Code

1. What does the OBDII code B1693 mean on a Ford vehicle?

The B1693 code indicates an "Autolamp On Circuit Failure," meaning there's an issue with the circuit responsible for the automatic headlamp system.

2. What are the common symptoms of the B1693 code?

Symptoms may include the autolamp feature not working, headlights not turning on or off automatically, or the system behaving erratically.

3. What causes the B1693 code to appear?

Common causes include a faulty autolamp sensor, damaged wiring or connectors in the circuit, or a malfunctioning headlight switch.

4. How can I diagnose the B1693 code?

Start by inspecting the autolamp sensor and its wiring for damage. Use a multimeter to test for continuity and check for power and ground in the circuit.

5. Can I still drive my vehicle with the B1693 code active?

Yes, you can drive, but the autolamp function may not work, requiring you to manually operate the headlights.

6. How do I fix the B1693 code on my Ford?

Repairs may include replacing the autolamp sensor, repairing damaged wires or connectors, or replacing a faulty headlight switch.

7. Where is the autolamp sensor located in Ford vehicles?

The autolamp sensor is typically located on the dashboard near the windshield, where it can detect light levels.

8. Can a blown fuse cause the B1693 code?

Yes, if the fuse linked to the autolamp circuit is blown, it can trigger the B1693 code.

9. How much does it cost to repair the B1693 code?

The cost varies depending on the issue, but replacing an autolamp sensor typically costs between $50 and $200, plus labor.

10. Can I reset the B1693 code without repairing the issue?

You can clear the code with an OBDII scanner, but it will likely return if the underlying problem isn't resolved.

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