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 of the transmission fluid is using too much electricity. It's like when a toy uses too much battery power and stops working right.
The transmission control module (TCM) has detected that the current in the circuit for the pressure control solenoid 'B' is higher than expected.
The pressure control solenoid 'B' is responsible for regulating the hydraulic pressure in the transmission. When the TCM detects that the electrical current in the solenoid's circuit is too high, it triggers the P17D4 code. This could be due to a short circuit, a faulty solenoid, or an issue with the wiring.
• Transmission slipping
• Harsh or erratic shifting
• Illuminated check engine light
• Short circuit in the wiring
• Faulty pressure control solenoid 'B'
• Malfunctioning transmission control module (TCM)
Transmission Control Module (TCM): A computer that controls the transmission functions.
Solenoid: An electromechanical device used to control fluid flow in the transmission.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the pressure control solenoid 'B' for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty pressure control solenoid 'B'.
• Reprogram or replace the transmission control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly inspect and maintain transmission components.
• Ensure proper fluid levels and quality.
• Address transmission issues promptly.
Sensor Issue
• Do not ignore the check engine light.
• Seek professional diagnosis and repair.
• Avoid driving the vehicle excessively until repaired.
Check with your vehicle manufacturer for specific warranty coverage related to transmission components.
This code has been associated with transmission issues in vehicles with electronic control systems.
Moderate – Addressing this issue promptly can prevent further transmission damage.
Driving with a malfunctioning transmission can be dangerous. Address this issue promptly to ensure vehicle safety.
• Vehicle must be running.
• Transmission fluid should be at operating temperature.
The pressure control solenoid 'B' is located within the transmission assembly.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to more severe transmission issues and potentially costly repairs.
Q: Can I drive with the P17D4 code?
A: It's not recommended to drive the vehicle extensively with this code active, as it can cause further damage to the transmission.
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