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Engine-Codes – Mercury – B1692 Mercury

B1692 Mercury Code - Autolamp Delay Circuit Short To Ground

Quick Answer

The B1692 diagnostic trouble code (DTC) indicates a malfunction in the autolamp delay circuit, specifically a short to ground condition. Common causes include Damaged or frayed wiring in the autolamp circuit, Corrosion or poor connections at the headlamp control module or related connectors, A malfunctioning headlamp control module or relay. 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
B1692 Mercury indicates Autolamp Delay Circuit Short To Ground.
Common causes
Common causes include Damaged or frayed wiring in the autolamp circuit, Corrosion or poor connections at the headlamp control module or related connectors, A malfunctioning headlamp control module or relay.
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 Oct 29, 2024
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Code B1692 Mercury Description

The B1692 diagnostic trouble code (DTC) indicates a malfunction in the autolamp delay circuit, specifically a short to ground condition. This code is primarily associated with vehicles equipped with an automatic headlamp system that utilizes a delay feature, allowing the headlights to remain on for a predetermined period after the ignition is turned off. The autolamp system is designed to enhance safety and convenience by ensuring that the vehicle's lights are appropriately managed in varying lighting conditions.

OBDII Code B1692 Mercury - Autolamp Delay Circuit Short To Ground
B1692 Mercury Code - Autolamp Delay Circuit Short To Ground

Common Causes of B1692 Mercury

  1. Damaged or frayed wiring in the autolamp circuit.
  2. Corrosion or poor connections at the headlamp control module or related connectors.
  3. A malfunctioning headlamp control module or relay.
  4. Water intrusion or moisture in the electrical connectors.
  5. Aftermarket modifications or installations that interfere with the autolamp system.

Symptoms of B1692 Mercury

  1. Headlights remain on after the ignition is turned off.
  2. Headlights flicker or operate intermittently.
  3. Battery drains quickly, especially if the vehicle is parked for extended periods.
  4. Inconsistent operation of the autolamp feature (e.g., lights not activating in low-light conditions).
  5. Dashboard warning lights related to the lighting system may illuminate.

How to Fix B1692 Mercury

  1. Visual Inspection: Begin with a thorough visual inspection of the wiring harness and connectors associated with the autolamp circuit. Look for signs of damage, corrosion, or loose connections.
  2. Test for Shorts: Use a multimeter to check for continuity in the circuit and identify any shorts to ground. This will help pinpoint the exact location of the fault.
  3. Repair or Replace Wiring: If damaged wiring is found, repair or replace the affected sections. Ensure that all connections are clean and secure.
  4. Inspect Control Module: If the wiring appears intact, test the headlamp control module for proper operation. Replace it if it is found to be faulty.
  5. Clear Codes and Test: After repairs are made, clear the DTCs using a scan tool and perform a test drive to ensure that the autolamp system operates correctly and that the B1692 code does not reappear.

Cost to Fix B1692 Mercury

The typical repair costs for addressing a B1692 code can vary widely based on the specific diagnosis and repairs needed. On average, you might expect to pay between $150 and $500 for parts and labor. This estimate includes potential costs for wiring repairs, connector replacements, or control module replacements. Labor rates can vary significantly; most auto repair shops charge between $80 and $150 per hour. In metropolitan areas or at dealerships, rates may be higher, while independent shops may offer lower rates. It's advisable to check local rates for a more precise estimate, as the total cost will depend on the complexity of the repair and the time required to diagnose and fix the issue.

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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 B1692 Mercury Code

1. What does the OBDII code B1692 mean on a Mercury vehicle?

The code B1692 indicates that there is a short to ground in the autolamp delay circuit, which is part of the vehicle's automatic headlamp control system.

2. What symptoms might I notice if my Mercury has the B1692 code?

Symptoms can include the automatic headlamps not functioning properly, staying on longer than intended, or not turning on at all.

3. What could cause the B1692 code to appear in a Mercury vehicle?

Common causes include damaged wiring, faulty headlamp switch, or issues with the body control module related to the autolamp system.

4. How can I diagnose the issue causing the B1692 code in my Mercury?

Diagnosis should start with a visual inspection of the wiring and connectors in the autolamp system for signs of damage or corrosion. Further testing might require the use of a multimeter to check for shorts and continuity in the circuit.

5. What are some steps to repair the B1692 code in a Mercury?

Repair steps typically involve repairing or replacing damaged wires, connectors, or faulty components such as the headlamp switch or body control module, depending on the root cause of the short to ground.

6. Is it safe to drive my Mercury with the B1692 code active?

While the vehicle can be driven, the malfunctioning autolamps could impair visibility during night driving or adverse weather conditions, potentially making it unsafe. It is advisable to address the issue promptly.

7. Will the B1692 code clear on its own once repairs are made?

After the underlying issue is fixed, the B1692 code should be cleared using an OBDII scan tool. The system may also need a recheck to ensure all repairs are successful and the code does not reappear.

8. Can I fix the B1692 code myself or should I take it to a mechanic?

If you have experience with automotive electrical systems, you might be able to address this issue yourself. Otherwise, it is recommended to seek professional assistance, as electrical issues can be complex and require specialized tools.

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