Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car's computer is saying that there's a problem with a part that helps change gears. It's like a switch isn't working right.
The P0985 code indicates that the transmission control module (TCM) has detected a low voltage condition in the control circuit for shift solenoid E.
Shift solenoids are responsible for controlling the flow of transmission fluid in the valve body, which in turn controls gear shifting. A 'low' condition in the circuit means that the voltage is below the expected range, indicating a possible electrical issue such as an open circuit, short to ground, or a failed solenoid.
• Harsh or delayed shifting
• Transmission stuck in one gear
• Check Engine Light illuminated
• Faulty shift solenoid E
• Wiring issues such as open or short circuits
• Poor electrical connection in the shift solenoid circuit
Shift Solenoid: An electromechanical valve used to control the flow of transmission fluid.
TCM: Transmission Control Module, a computer that controls the transmission.
• Use an OBD-II scanner to confirm the code.
• Inspect wiring and connectors for damage or corrosion.
• Test the shift solenoid E for proper operation and resistance.
• Repair or replace damaged wiring or connectors.
• Replace the faulty shift solenoid E.
• Clear the code and test drive the vehicle to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Regular transmission fluid changes
• Inspect wiring and connectors periodically
• Avoid harsh driving conditions
Transmission Control Issue
• Avoid driving at high speeds until the issue is fixed.
• Consult a professional mechanic if unsure about the repairs.
Check with your vehicle manufacturer for warranty coverage on transmission components.
This code has been associated with transmission control issues in vehicles with electronically controlled transmissions.
Moderate – Address promptly to avoid further transmission damage.
Driving with transmission issues can lead to unsafe driving conditions. Address the problem as soon as possible.
• Vehicle at operating temperature
• Transmission in drive mode
Shift solenoid E is located inside the transmission, typically accessible by removing the transmission pan.
Q: Can I drive with a P0985 code?
A: It's not recommended to drive for long periods with this code as it can cause further transmission damage.
Q: How do I clear a P0985 code?
A: After repairs, use an OBD-II scanner to clear the code. Ensure the issue is resolved to prevent the code from returning.
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