AutoCodes – Mercury – C1948 Mercury

C1948 Mercury Code - Seat Track Position Switch Circuit Resistance Out of Range

Quick Answer

The Engine Control Module (ECM) monitors the Seat Track Position Switch. Common causes include Faulty Seat Track Position Switch, Seat Track Position Switch harness is open or shorted, Seat Track Position 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: C1948 Mercury indicates Seat Track Position Switch Circuit Resistance Out of Range.
Common causes: Common causes include Faulty Seat Track Position Switch, Seat Track Position Switch harness is open or shorted, Seat Track Position 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 710

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 Dec 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1948 Mercury Description

The Engine Control Module (ECM) monitors the Seat Track Position Switch. The ECM sets the OBDII code when the Seat Track Position Switch is not to factory specifications.

OBDII Code C1948 Mercury - Seat Track Position Switch Circuit Resistance Out of Range - AutoCodes.com — C1948 Mercury Code - Seat Track Position Switch Circuit Resistance Out of Range

What does this mean?

What are the Possible Causes of the DTC C1948 Mercury?

Faulty Seat Track Position Switch
Seat Track Position Switch harness is open or shorted
Seat Track Position Switch circuit poor electrical connection

How to Fix the DTC C1948 Mercury?

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 C1948 Mercury 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.

Need more information about the C1948 Mercury code?

Need more information on how to fix the C1948 Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1948 Mercury code diagnosed by a professional: Find a repair shop in your area

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 C1948 Mercury Code

1. What are the common symptoms of OBDII code C1948 in a Mercury related to the Seat Track Position Switch Circuit?

Common symptoms include erratic seat movement, failure of the power seat to adjust properly, or complete loss of power seat function.

2. What are the potential causes of OBDII code C1948 in a Mercury?

The code C1948 typically indicates a fault in the Seat Track Position Switch Circuit, which can be caused by a faulty seat track position switch, damaged wiring, or poor electrical connections.

3. How can I diagnose the issue related to OBDII code C1948 in my Mercury?

Diagnosing the issue involves checking the seat track position switch, inspecting the wiring for any damage, and testing the electrical connections for proper continuity and resistance.

4. Can I still drive my Mercury if OBDII code C1948 is triggered?

It is not recommended to drive your Mercury with code C1948 active, as it may lead to further damage and potential safety hazards due to the compromised seat track position switch circuit.

5. How can I repair OBDII code C1948 in my Mercury?

Repairing the issue involves replacing the faulty seat track position switch, repairing any damaged wiring, and ensuring all electrical connections are secure and functioning correctly.

6. Is it possible to reset OBDII code C1948 in my Mercury without fixing the underlying issue?

While you can clear the code temporarily, it will likely return until the root cause of the problem, such as the faulty seat track position switch or wiring, is properly addressed.

7. Can a DIY enthusiast fix OBDII code C1948 in a Mercury, or is professional assistance required?

Depending on your skill level and experience with automotive electrical systems, you may be able to address the issue yourself by following repair guides and using the necessary tools. However, if you are unsure, it is best to seek professional assistance.

8. How much does it cost to repair OBDII code C1948 in a Mercury?

The cost of repairing code C1948 can vary depending on the extent of the damage and whether you choose to fix it yourself or seek help from a professional mechanic. Costs may include parts and labor.

9. Are there any preventive measures I can take to avoid OBDII code C1948 in my Mercury in the future?

Regular maintenance checks, such as inspecting the seat track position switch and wiring for wear and tear, can help prevent issues that may trigger code C1948 in the future.

10. How long does it typically take to repair OBDII code C1948 in a Mercury?

The repair time can vary depending on the complexity of the issue and your experience level. It may take a few hours to a full day to diagnose and fix the problem related to code C1948 in your Mercury.