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 has detected a problem with the way two parts of the transmission (Clutch A and Clutch C) are working together. It's like if two gears in a clock aren't turning at the right speed together.
The P17F1 code is triggered when the transmission control module (TCM) detects a discrepancy in the expected ratio between Clutch A and Clutch C.
The transmission control module monitors the operation of the transmission clutches to ensure they engage and disengage correctly. If the TCM detects that the actual gear ratio does not match the expected ratio when Clutch A and Clutch C are engaged, it sets the P17F1 code.
• Check Engine Light is on
• Poor transmission performance
• Unusual noises from the transmission
• Faulty transmission control module
• Worn or damaged clutches
• Hydraulic pressure issues
Transmission Control Module (TCM): A computer that controls the operation of the transmission.
Clutch: A device that engages and disengages power transmission from the driving shaft to the driven shaft.
• Perform a visual inspection of the transmission components.
• Use a scan tool to check for additional codes.
• Inspect and test the transmission control module.
• Replace or repair faulty clutches.
• Repair or replace the transmission control module.
• Check and adjust hydraulic pressure.
• OBD-II scanner
• Transmission pressure gauge
• Basic hand tools
$500 - $2000
Difficult
• Nissan Altima
• Infiniti Q50
• Nissan Rogue
• Regular transmission fluid changes
• Avoid aggressive driving
• Routine transmission inspections
Transmission Issue
• Avoid driving the vehicle until repaired.
• Consult a professional mechanic for diagnosis.
Check with the vehicle manufacturer for transmission-related warranty coverage.
This code has been more prevalent in vehicles with CVT transmissions, particularly those from Nissan.
High – Continuing to drive with this issue can cause further damage to the transmission.
Driving with a malfunctioning transmission can be dangerous and may lead to accidents.
• Vehicle at operating temperature
• Transmission in drive mode
The transmission control module is typically located near the transmission or under the hood.
Q: Can I drive my car with a P17F1 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 P17F1 code?
A: Fix the underlying issue and use an OBD-II scanner to clear the code.
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