Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means that the car's computer has detected a problem with the electrical supply to a part that helps control the gears in your car. It's like when a toy doesn't work because the batteries are too powerful.
The P1893 code indicates that the voltage supplied to the pressure control solenoid or shift solenoid is higher than expected, which can affect the transmission's ability to shift gears properly.
The pressure control solenoid and shift solenoid are responsible for controlling hydraulic pressure and gear shifts in the transmission. A high voltage condition in their circuit can lead to improper transmission operation, potentially causing harsh or delayed shifts.
• Harsh or delayed gear shifts
• Transmission slipping
• Check engine light illuminated
• Faulty pressure control solenoid
• Faulty shift solenoid
• Wiring issues such as shorts or open circuits
Solenoid: An electromechanical device used to control the flow of fluid in the transmission.
Voltage: The electrical potential difference that drives current through a circuit.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the voltage supply to the solenoids.
• Repair or replace damaged wiring or connectors.
• Replace the faulty solenoid.
• Clear the code and test drive to confirm the fix.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $500
Moderate
• Ford Explorer
• Chevrolet Silverado
• Dodge Ram
• Regular transmission maintenance
• Inspect wiring for wear and tear
• Ensure proper voltage levels
Transmission Issue
• Avoid driving aggressively until the issue is fixed.
• Have the vehicle inspected by a professional mechanic.
Check with your vehicle manufacturer for warranty coverage on transmission components.
This code has been associated with transmission issues in vehicles with electronic control systems, often due to electrical faults.
Moderate – It is advisable to address this issue soon to avoid further transmission damage.
Ignoring transmission issues can lead to unsafe driving conditions. Always ensure your vehicle is in good working order.
• Vehicle at operating temperature
• Transmission in gear
The solenoids are located within the transmission, often accessible by removing the transmission pan.
Q: Can I drive with a P1893 code?
A: It's not recommended to drive with this code as it can 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 repairs are completed.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.