Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with a part that helps control the pressure in the transmission. It's like a traffic light that helps manage the flow of cars, but it's not working right.
The P170B code indicates an issue with the monitoring of the pressure control solenoid 'B', which is responsible for regulating hydraulic pressure in the transmission.
The pressure control solenoid 'B' is part of the transmission system that helps manage the flow of transmission fluid to ensure smooth gear shifts. When the vehicle's computer detects a fault in the monitoring of this solenoid, it triggers the P170B code.
• Check Engine Light is on
• Transmission slipping or shifting issues
• Reduced fuel efficiency
• Faulty pressure control solenoid 'B'
• Wiring issues or poor electrical connections
• Transmission fluid issues or contamination
Solenoid: An electromechanical device that controls fluid flow in the transmission.
Transmission: A system in a vehicle that transmits power from the engine to the wheels.
• Check for any other related codes
• Inspect the wiring and connectors to the solenoid
• Test the pressure control solenoid 'B' for proper operation
• Replace the faulty pressure control solenoid 'B'
• Repair or replace damaged wiring or connectors
• Flush and replace transmission fluid if contaminated
• OBD-II scanner
• Multimeter
• Transmission fluid pressure gauge
$150 - $400
Moderate
• Ford Focus
• Chevrolet Malibu
• Honda Accord
• Regular transmission fluid changes
• Inspect wiring and connectors periodically
• Avoid aggressive driving habits
Transmission Issue
• Avoid driving the vehicle until repaired to prevent further damage
• Consult a professional mechanic for accurate diagnosis
Check with your vehicle manufacturer for warranty coverage on transmission components.
This code has been associated with transmission issues in various models, often due to solenoid wear or electrical problems.
High – Transmission issues can lead to further damage if not addressed promptly.
Driving with transmission issues can be unsafe and may lead to costly repairs. Address the issue as soon as possible.
• Vehicle at operating temperature
• Transmission in gear
The pressure control solenoid 'B' is located inside the transmission, typically accessible by removing the transmission pan.
Q: Can I drive with a P170B code?
A: It's not recommended to drive with this code as it can lead to further transmission damage.
Q: How do I reset the P170B code?
A: After repairs, use an OBD-II scanner to clear the code. If the problem persists, the code will return.
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