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 is having trouble reading a sensor that helps it know what gear the car is in. It's like if a video game controller button got stuck and the game couldn't tell if you pressed it or not.
The P17AA code is triggered when the transmission control module (TCM) detects a low voltage signal from the shift rod 5/7 sensor circuit, indicating a potential issue with the sensor or its wiring.
The shift rod 5/7 sensor is part of the transmission system that monitors the position of the shift rod for gears 5 and 7. A low circuit signal suggests a problem with the sensor's ability to send accurate voltage readings to the TCM, which can affect gear shifting performance.
• Erratic or harsh shifting
• Transmission stuck in a single gear
• Check Engine Light illuminated
• Faulty shift rod 5/7 sensor
• Damaged or corroded wiring/connectors
• Faulty transmission control module (TCM)
Transmission Control Module (TCM): A computer that controls the operation of the transmission.
Shift Rod: A component in the transmission that helps select gears.
• Scan the vehicle with an OBD-II scanner to confirm the P17AA code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the shift rod 5/7 sensor for proper operation.
• Repair or replace damaged wiring/connectors.
• Replace the faulty shift rod 5/7 sensor.
• Reprogram or replace the transmission control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Volkswagen Passat
• Audi A4
• Skoda Superb
• Regularly inspect and maintain transmission wiring.
• Avoid harsh driving conditions that can stress the transmission.
• Keep the transmission fluid clean and at the proper level.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have your vehicle inspected by a professional if you experience shifting issues.
• Regularly maintain your vehicle's transmission system.
Check your vehicle's warranty coverage for transmission-related repairs.
This code has been associated with certain models that use advanced dual-clutch transmissions, which are sensitive to sensor inputs.
Moderate – It should be addressed soon to avoid potential transmission damage.
Driving with transmission issues can be unsafe. Ensure repairs are made promptly to maintain vehicle safety.
• Vehicle at operating temperature
• Transmission in drive mode
The shift rod 5/7 sensor is typically located within the transmission housing.
Q: Can I drive with a P17AA code?
A: It's not recommended, as it can lead to further transmission damage.
Q: How can I prevent this code from appearing?
A: Regular maintenance and inspections of the transmission system can help prevent sensor issues.
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