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 a part in the car that helps control the pressure in the transmission isn't getting enough electrical power.
The P17C7 code indicates that the transmission control module (TCM) has detected a low current condition in the circuit for the pressure control solenoid 'E'.
Pressure control solenoids are used in automatic transmissions to regulate hydraulic pressure. The solenoid 'E' is responsible for controlling the pressure applied to certain clutches or bands. A 'current too low' condition suggests that there is insufficient electrical current reaching the solenoid, which could be due to wiring issues, a faulty solenoid, or a problem in the TCM.
• Transmission slipping
• Harsh or erratic shifting
• Illuminated check engine light
• Faulty pressure control solenoid 'E'
• Wiring issues such as open circuits or poor connections
• Faulty transmission control module (TCM)
Transmission Control Module (TCM): A computer that controls the operation of the transmission.
Solenoid: An electromechanical device used to control fluid flow in the transmission.
• Check for any other related codes and address them first.
• Inspect the wiring and connectors for damage or corrosion.
• Test the pressure control solenoid 'E' for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty pressure control solenoid 'E'.
• Replace or reprogram the transmission control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Nissan Altima
• Infiniti Q50
• Jeep Grand Cherokee
• Regular transmission fluid changes
• Routine inspection of wiring and connectors
• Avoid aggressive driving habits
Sensor Issue
• Do not ignore the check engine light.
• Consult a professional mechanic for a thorough diagnosis.
Check with the vehicle manufacturer for specific warranty coverage related to transmission components.
This code has been associated with issues in vehicles with electronically controlled transmissions, particularly in models with known transmission solenoid problems.
Moderate – Addressing this issue can prevent further transmission damage.
Driving with a transmission issue can lead to further damage or unsafe driving conditions.
• Vehicle at operating temperature
• Transmission in drive mode
The pressure control solenoid 'E' is located inside the transmission, typically accessible by removing the transmission pan.
Q: Can I drive with a P17C7 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 check engine light after fixing the issue?
A: Use an OBD-II scanner to clear the code after the repair is completed.
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