Engine-Codes.com
Engine-Codes – Generic – C1946

C1946 Code - Seat Track Position Switch Circuit Open

Quick Answer

The C1946 code indicates that there is an issue with the seat track position switch circuit being open. Common causes include Damaged wiring in the seat track position switch circuit, Faulty seat track position switch, Corrosion or loose connections in the electrical system. 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
C1946 indicates Seat Track Position Switch Circuit Open.
Common causes
Common causes include Damaged wiring in the seat track position switch circuit, Faulty seat track position switch, Corrosion or loose connections in the electrical system.
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 10, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code C1946 Description

The C1946 code indicates that there is an issue with the seat track position switch circuit being open. This switch is responsible for detecting the position of the seat on the track and sending that information to the vehicle's computer system. When the circuit is open, it means that there is a break or disconnect in the electrical connection, preventing the switch from functioning properly. This can lead to inaccurate seat position readings, affecting the vehicle's safety systems and comfort features.

OBDII Code C1946 - Seat Track Position Switch Circuit Open
C1946 Code - Seat Track Position Switch Circuit Open

Common Causes of C1946

  1. Damaged wiring in the seat track position switch circuit
  2. Faulty seat track position switch
  3. Corrosion or loose connections in the electrical system
  4. Issues with the vehicle's computer system
  5. Physical damage to the seat track or switch components

Symptoms of C1946

  1. Seat not adjusting properly
  2. Warning light on the dashboard related to seat position
  3. Inaccurate seat memory settings
  4. Issues with airbag deployment or seatbelt pretensioners
  5. Abnormal noises when adjusting the seat

How to Fix C1946

  1. Begin by inspecting the wiring and connections in the seat track position switch circuit for any damage or corrosion.
  2. Test the seat track position switch using a multimeter to determine if it is functioning properly.
  3. Replace any damaged wiring or connectors in the circuit.
  4. If the seat track position switch is faulty, replace it with a new one following the manufacturer's guidelines.
  5. Clear the diagnostic trouble codes from the vehicle's computer system and test the seat adjustment to ensure proper functionality.

Cost to Fix C1946

The typical repair costs for addressing a C1946 code can vary depending on the specific cause of the issue. In general, replacing a faulty seat track position switch or repairing damaged wiring can range from $100 to $300, including parts and labor. Additional diagnostic time may be needed to pinpoint the exact cause of the problem, which could add to the overall cost. It is recommended to consult with a trusted auto repair shop for a more accurate estimate based on the make and model of the vehicle. Remember that labor rates can vary, so it's wise to shop around for the best deal.

Need more information about the C1946 code?

Need more information on how to fix the C1946 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1946 code diagnosed by a professional: Find a repair shop in your area

Code C1946 Information for Specific Makes

  • C1946 Ford — Seat Track Position Switch Circuit Open
  • C1946 Lexus — Malfunction In Signal From Steering Control ECU To Front Active Stabilizer Control ECU
  • C1946 Lincoln — Seat Track Position Switch Circuit Open
  • C1946 Mercury — Seat Track Position Switch Circuit Open
  • C1946 Toyota — Malfunction In Signal From Steering Control ECU To Front Active Stabilizer Control ECU
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 C1946 Code

1. What are the common symptoms of OBDII code C1946 (Seat Track Position Switch Circuit Open)?

The common symptoms include the inability to adjust the seat position electronically, erratic seat movement, or a non-functioning power seat.

2. What causes the OBDII code C1946 (Seat Track Position Switch Circuit Open)?

This code is typically caused by a faulty seat track position switch, damaged wiring or connectors in the seat track circuit, or a malfunctioning seat control module.

3. How can I diagnose the OBDII code C1946 (Seat Track Position Switch Circuit Open)?

Diagnosis involves inspecting the seat track position switch and its wiring for any visible damage, testing the switch for continuity, and using a diagnostic scan tool to retrieve the fault codes from the seat control module.

4. Can I repair OBDII code C1946 (Seat Track Position Switch Circuit Open) myself?

If you have experience working with automotive electrical systems, you may be able to repair this issue yourself by replacing the faulty seat track position switch, repairing damaged wiring, or resetting the seat control module.

5. Is it safe to drive with the OBDII code C1946 (Seat Track Position Switch Circuit Open)?

It is generally safe to drive with this code, but you may experience difficulties adjusting your seat position. It is recommended to address the issue promptly to ensure comfort and safety while driving.

6. How much does it cost to repair OBDII code C1946 (Seat Track Position Switch Circuit Open)?

The cost of repair can vary depending on the root cause of the issue. Replacing a seat track position switch or repairing wiring may cost between $100 to $300, while addressing a faulty seat control module can cost upwards of $500.

7. Can resetting the OBDII code C1946 (Seat Track Position Switch Circuit Open) resolve the issue?

Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem. It is important to diagnose and repair the issue to ensure proper functionality of the seat track position switch.

8. How long does it take to repair OBDII code C1946 (Seat Track Position Switch Circuit Open)?

The repair time can vary depending on the complexity of the issue and your expertise. It may take anywhere from 1 to 3 hours to diagnose and repair the seat track position switch circuit.

9. Are there any preventive measures to avoid OBDII code C1946 (Seat Track Position Switch Circuit Open)?

Regularly inspecting the seat track position switch and its wiring for any signs of wear or damage can help prevent this issue. Also, avoiding excessive force when adjusting the seat position can prolong the switch's lifespan.

10. Can OBDII code C1946 (Seat Track Position Switch Circuit Open) affect the functionality of other vehicle systems?

While this code specifically relates to the seat track position switch circuit, it may indirectly affect the operation of other electronic systems connected to the seat control module, such as the memory seat function or airbag deployment system.

Discuss the causes and fixes for C1946 OBDII Code

Submit a New Comment

Code C1946 comments

No comments found for this page.