Hyundai Kia Error Code P1750: How to Fix It

Hard 2-4 hours High Severity Verified June 2026
Error Code
P1750
Brand
Hyundai Kia
Product Type
automotive
Severity
High
DIY Difficulty
Hard
Estimated Fix Time
2-4 hours
The P1750 error code in Hyundai and Kia vehicles indicates an electrical problem with transmission solenoid valve B circuit. This serious transmission issue can cause harsh shifting, transmission slipping, or complete transmission failure if not addressed promptly.
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Tools You'll Need

How to Fix Error Code P1750

  1. Scan for Additional Codes

    Ensure the vehicle is parked on level ground with the parking brake engaged before beginning diagnosis.
  2. Check Transmission Fluid Level and Condition

    Hot transmission fluid can cause severe burns. Use caution when checking fluid on a warm transmission.
  3. Inspect Transmission Wiring Harness

    Disconnect the negative battery terminal before inspecting electrical connections to prevent shorts.
  4. Test Solenoid Valve B Resistance

  5. Check Power Supply to Solenoid

    Do not probe live electrical connections with metal tools. Use proper multimeter probes only.
  6. Test Ground Circuit

  7. Replace Faulty Components

    Transmission work requires specific torque specifications and procedures. Improper installation can cause catastrophic transmission failure.
  8. Clear Codes and Test Drive

    If harsh shifting or slipping persists after repairs, stop driving immediately to prevent further transmission damage.

Parts You May Need

Transmission solenoid valve B
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Transmission filter and fluid
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Transmission wiring harness
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Transmission solenoid valve B
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Transmission filter and fluid
Check Price on Amazon
Transmission wiring harness
Check Price on Amazon
Transmission solenoid valve B
Check Price on Amazon
Transmission filter and fluid
Check Price on Amazon
Transmission wiring harness
Check Price on Amazon
Transmission solenoid valve B
Check Price on Amazon
Transmission filter and fluid
Check Price on Amazon
Transmission wiring harness
Check Price on Amazon
Transmission solenoid valve B
Check Price on Amazon
Transmission filter and fluid
Check Price on Amazon
Transmission wiring harness
Check Price on Amazon
Transmission solenoid valve B
Check Price on Amazon
Transmission filter and fluid
Check Price on Amazon
Transmission wiring harness
Check Price on Amazon
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When to Call a Professional

Call a transmission specialist if you find multiple solenoid failures, suspect transmission control module issues, or lack experience with transmission electrical diagnosis. Internal transmission damage or valve body problems require professional rebuild services and specialized tools.

Frequently Asked Questions

Can I drive with P1750 code?
You should not drive with P1750 code as it indicates serious transmission electrical problems that can cause unsafe shifting conditions or complete transmission failure. Have it diagnosed immediately.
How much does it cost to fix P1750?
Repair costs range from $150-300 for solenoid replacement to $2000-4000 for transmission rebuild if internal damage has occurred. Early diagnosis and repair can prevent costly transmission damage.
What causes P1750 in Hyundai Kia vehicles?
Common causes include failed transmission solenoid valve B, damaged wiring harness, corroded electrical connections, low transmission fluid, or faulty transmission control module.
Is P1750 covered under warranty?
P1750 may be covered under powertrain warranty if your Hyundai or Kia is within the warranty period. Check with your dealer as some transmission issues have extended warranty coverage due to known problems.
How long does P1750 repair take?
Simple solenoid replacement takes 2-4 hours, while transmission rebuild for internal damage can take 1-3 days depending on parts availability and shop workload.