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 noticed something unusual with how two parts inside the transmission, called clutches, are working together. It's like when two gears in a toy don't fit right and make the toy act funny.
The P17F3 code indicates that the transmission control module (TCM) has detected an issue with the ratio monitoring between Clutch A and Clutch E, which are part of the transmission system responsible for shifting gears.
The transmission uses multiple clutches to engage different gears. Clutch A and Clutch E are monitored for their engagement ratios to ensure they are functioning correctly. If the TCM detects a discrepancy in expected versus actual ratios, it triggers the P17F3 code.
• Transmission slipping
• Poor acceleration
• Check engine light on
• Faulty transmission control module
• Worn or damaged clutches
• Hydraulic fluid issues
Transmission Control Module (TCM): A computer that controls the transmission's operation.
Clutch: A device that engages and disengages the power transmission, especially from a driving shaft to a driven shaft.
• Check for other related codes
• Inspect transmission fluid level and condition
• Perform a transmission system test using a scan tool
• Replace or repair faulty clutches
• Update or reprogram the transmission control module
• Flush and replace transmission fluid
• OBD-II scanner
• Transmission fluid pressure gauge
• Basic hand tools
$500 - $1500
Difficult
• Nissan Altima
• Infiniti Q50
• Renault Koleos
• Regular transmission fluid changes
• Routine transmission inspections
• Avoiding aggressive driving habits
Transmission Issue
• Avoid driving the vehicle until repaired
• Consult a professional mechanic
• Do not ignore the check engine light
Transmission issues may be covered under powertrain warranty. Check with your vehicle manufacturer.
This code has been associated with transmission issues in CVT-equipped vehicles, particularly in models from the mid-2010s.
High – Driving with this issue can lead to further transmission damage.
Ignoring transmission issues can lead to vehicle breakdown and potential safety hazards.
• Vehicle at operating temperature
• Transmission in normal operating mode
Clutches A and E are located within the transmission assembly.
Q: Can I drive with a P17F3 code?
A: It's not recommended to drive with this code active, as it can cause further damage to the transmission.
Q: How do I reset the P17F3 code?
A: The code can be reset with an OBD-II scanner, but it's important to fix the underlying issue first.
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