C1946 Code - Seat Track Position Switch Circuit Open
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
- C1946 indicates Seat Track Position Switch Circuit Open.
- 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.
Code C1946 Description
What are the Possible Causes of the DTC C1946?
- 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 C1946?
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 C1946 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 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
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
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
Code C1946 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
