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 an electrical part in your car that helps control the pressure in the transmission. It's like a switch that isn't working because it's not getting the right amount of electricity.
The P1751 code indicates an issue with the secondary pressure solenoid circuit, which is not receiving the correct voltage, possibly due to an open circuit.
The secondary pressure solenoid is responsible for regulating hydraulic pressure in the transmission. An open circuit or high system voltage can prevent the solenoid from operating correctly, leading to transmission performance issues.
• Transmission slipping
• Harsh or erratic shifting
• Check Engine Light illuminated
• Faulty secondary pressure solenoid
• Open or shorted wiring in the solenoid circuit
• High system voltage due to alternator or battery issues
Solenoid: An electromechanical device that controls the flow of fluid in the transmission.
Circuit: A path for electrical flow.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the voltage and continuity in the solenoid circuit.
• Replace the faulty secondary pressure solenoid.
• Repair or replace damaged wiring or connectors.
• Check and correct the system voltage if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Honda Accord
• Nissan Altima
• Toyota Camry
• Regularly check and maintain battery and alternator health.
• Inspect transmission wiring during routine maintenance.
• Avoid overloading the vehicle's electrical system.
Sensor Issue
• Drive cautiously until the issue is resolved.
• Avoid long trips until the repair is completed.
Check with your vehicle's manufacturer for warranty coverage on transmission components.
This code has been associated with transmission control issues in vehicles with electronic transmission systems.
Moderate – It is advisable to address this issue soon to prevent further transmission damage.
Driving with a faulty transmission can be unsafe and may lead to more significant damage.
• Vehicle at operating temperature
• Transmission in drive
The secondary pressure solenoid is located within the transmission housing.
Q: Can I drive with a P1751 code?
A: It's possible, but not recommended, as it may cause further damage to the transmission.
Q: How do I reset the Check Engine Light after repairs?
A: Use an OBD-II scanner to clear the code after confirming the repair is successful.
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