Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with a part in your car's transmission that helps control how smoothly it shifts gears. It's like a little helper that isn't working right.
The P1743 code is triggered when the transmission control module (TCM) detects an electrical issue with the pressure control solenoid 'E'. This solenoid is responsible for regulating hydraulic pressure to ensure smooth gear shifts.
The pressure control solenoid 'E' is an electronic component within the transmission that modulates hydraulic pressure to engage and disengage the brake band, which is crucial for proper gear shifting. An electrical fault in this solenoid can disrupt transmission operation.
• Harsh or erratic shifting
• Transmission slipping
• Illuminated check engine light
• Faulty pressure control solenoid 'E'
• Wiring issues such as shorts or opens in the solenoid circuit
• Faulty transmission control module (TCM)
Transmission Control Module (TCM): A computer that controls the transmission's operation.
Solenoid: An electromechanical device used to control fluid flow in the transmission.
• Use an OBD-II scanner to confirm the P1743 code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the solenoid for proper resistance and operation.
• Replace the faulty pressure control solenoid 'E'.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the transmission control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $500
Moderate
• Ford Explorer
• Ford F-150
• Lincoln Navigator
• Regular transmission fluid changes
• Routine transmission system inspections
• Avoid aggressive driving habits
Transmission Performance
• Get the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle until repairs are made to prevent further damage.
Check with your vehicle's manufacturer for specific warranty coverage on transmission components.
The P1743 code has been a common issue in vehicles with automatic transmissions, particularly in older models with high mileage.
High – This issue can lead to serious transmission damage if not addressed promptly.
Driving with a faulty transmission can be dangerous and may lead to further mechanical issues.
• Vehicle at operating temperature
• Transmission in drive
The pressure control solenoid 'E' is located inside the transmission, typically accessible by removing the transmission pan.
Q: Can I drive my car with a P1743 code?
A: It's not recommended to drive with this code as it can cause further transmission damage.
Q: How do I reset the check engine light after fixing the P1743 code?
A: You can reset the light using an OBD-II scanner, or it may turn off automatically after several drive cycles if the issue is resolved.
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