Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a part that helps control how smoothly it shifts gears. This part isn't getting enough power, which can make the car not shift gears properly.
The code indicates that the current in the circuit for the pressure control solenoid 'B' is lower than expected, which can affect transmission performance.
The pressure control solenoid 'B' is responsible for managing the hydraulic pressure in the transmission to ensure smooth gear shifts. A low current in its sense circuit suggests an electrical issue, such as a poor connection or a failing solenoid.
• Harsh or erratic shifting
• Transmission slipping
• Illuminated check engine light
• Faulty pressure control solenoid 'B'
• Wiring issues such as open or short circuits
• Faulty transmission control module (TCM)
Solenoid: An electromechanical device that converts electrical energy into mechanical movement.
TCM: Transmission Control Module, a device that controls the transmission functions.
• Check for other related transmission codes
• Inspect wiring and connectors for damage
• Test the pressure control solenoid 'B' for proper operation
• Repair or replace damaged wiring
• Replace the pressure control solenoid 'B'
• Reprogram or replace the TCM if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $500
Moderate
• Nissan Altima
• Honda Accord
• Toyota Camry
• Regular transmission fluid changes
• Routine inspection of wiring harnesses
• Avoid aggressive driving
Sensor Issue
• Avoid driving aggressively until the issue is fixed
• Have the vehicle inspected by a professional mechanic
Check with the vehicle manufacturer for specific warranty coverage on transmission components.
This code has been associated with vehicles that have electronically controlled transmissions, particularly in models with higher mileage.
Moderate – It should be addressed soon to prevent further transmission damage.
Driving with transmission issues can lead to unsafe driving conditions. It is recommended to address this code promptly.
• Vehicle at operating temperature
• Transmission in drive
The pressure control solenoid 'B' is located inside the transmission, typically accessible by removing the transmission pan.
Q: Can I drive with a P17C4 code?
A: It's not recommended as it can lead to further transmission damage.
Q: How do I reset the check engine light after fixing the issue?
A: Use an OBD-II scanner to clear the code after repairs are completed.
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