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Engine-Codes – Mercury – C1920 Mercury

C1920 Mercury Code - Parking Aid System LED Circuit Failure

Quick Answer

The C1920 diagnostic trouble code (DTC) for Mercury vehicles indicates a Parking Aid System LED Circuit Failure. Common causes include Damaged wiring or connectors in the LED circuit, Faulty LED display unit, Malfunctioning 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
C1920 Mercury indicates Parking Aid System LED Circuit Failure.
Common causes
Common causes include Damaged wiring or connectors in the LED circuit, Faulty LED display unit, Malfunctioning 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code C1920 Mercury Description

The C1920 diagnostic trouble code (DTC) for Mercury vehicles indicates a Parking Aid System LED Circuit Failure. This code is related to the vehicle's parking aid system, which is designed to assist drivers in parking by providing visual and/or audible alerts when the vehicle is close to an obstacle. The LED circuit failure specifically refers to an issue with the light-emitting diodes (LEDs) that are used to display the parking aid system's alerts.

OBDII Code C1920 Mercury - Parking Aid System LED Circuit Failure
C1920 Mercury Code - Parking Aid System LED Circuit Failure

Common Causes of C1920 Mercury

  1. Damaged wiring or connectors in the LED circuit.
  2. Faulty LED display unit.
  3. Malfunctioning control module.
  4. Software glitch in the parking aid system.

Symptoms of C1920 Mercury

  1. Parking aid system alerts not displaying or illuminating properly.
  2. Incorrect or inconsistent alerts from the parking aid system.
  3. Inability to turn off or adjust the parking aid system.
  4. Parking aid system alerts displaying even when no obstacles are present.

How to Fix C1920 Mercury

  1. Begin by conducting a visual inspection of the parking aid system components, including the LED display unit and wiring, to check for any visible damage or loose connections.
  2. Use a multimeter to test the continuity of the wiring and connectors in the LED circuit to identify any faults.
  3. If no issues are found with the wiring, replace the LED display unit to address any internal faults that may be causing the LED circuit failure.
  4. If the issue persists, diagnose the control module for any malfunctions and replace it if necessary.
  5. Finally, reset the parking aid system and test it to ensure that the LED circuit failure has been resolved.

Cost to Fix C1920 Mercury

The cost of repairing a Parking Aid System LED Circuit Failure can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $100 to $200. Overall, the total repair cost for this issue is typically between $200 and $500. It's important to note that these are rough estimates, and actual costs may vary based on factors such as the vehicle's make and model, the location of the repair shop, and the technician's hourly labor rates. It's recommended to obtain quotes from local auto repair 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 C1920 Mercury Code

1. What are the common symptoms of OBDII code C1920 (Mercury) related to Parking Aid System LED Circuit Failure?

The common symptoms include the Parking Aid System LED not functioning, sporadic LED operation, or a continuous LED light indicating a circuit failure.

2. What could be the possible causes of OBDII code C1920 (Mercury) indicating Parking Aid System LED Circuit Failure?

Possible causes include a faulty LED light, damaged wiring or connectors in the parking aid system, or a malfunctioning control module.

3. How can I diagnose OBDII code C1920 (Mercury) for Parking Aid System LED Circuit Failure?

Diagnosis involves visually inspecting the LED light, checking the wiring and connectors for any damage, and using a diagnostic scan tool to retrieve trouble codes and identify the specific issue.

4. Can I repair OBDII code C1920 (Mercury) related to Parking Aid System LED Circuit Failure myself?

Depending on your automotive repair skills, you may be able to repair this issue yourself by replacing the faulty LED light, repairing damaged wiring, or addressing any connector issues. However, if you are unsure, it's best to consult a professional mechanic.

5. Is it safe to continue driving with OBDII code C1920 (Mercury) related to Parking Aid System LED Circuit Failure?

While the vehicle can still be driven with this code, it is recommended to address the issue promptly to ensure the proper functioning of the parking aid system.

6. Can resetting the OBDII code C1920 (Mercury) related to Parking Aid System LED Circuit Failure fix the problem?

Simply clearing the code may temporarily turn off the warning light, but it will not fix the underlying issue causing the LED circuit failure. It's crucial to diagnose and repair the root cause of the problem.

7. How much does it typically cost to repair OBDII code C1920 (Mercury) for Parking Aid System LED Circuit Failure?

The cost of repair can vary depending on the specific cause of the issue. Replacing a faulty LED light or repairing wiring may cost anywhere from $50 to $200, while replacing a control module could cost more.

8. Are there any preventative measures to avoid OBDII code C1920 (Mercury) related to Parking Aid System LED Circuit Failure?

Regularly inspecting the parking aid system, checking the LED operation, and ensuring proper maintenance of the vehicle's electrical components can help prevent such issues.

9. Will OBDII code C1920 (Mercury) cause my vehicle to fail an emissions test?

This specific code related to Parking Aid System LED Circuit Failure is unlikely to cause your vehicle to fail an emissions test as it does not directly impact emissions control systems.

10. How long does it typically take to repair OBDII code C1920 (Mercury) for Parking Aid System LED Circuit Failure?

The repair time can vary based on the specific cause of the issue and the complexity of the repair. Simple fixes like replacing an LED light may take around 30 minutes to an hour, while more involved repairs could take several hours.

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