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 when your car is trying to change gears from fourth to third, something isn't working right, like when a bike chain skips a gear.
The P17ED code is triggered when the transmission control module detects an incorrect gear ratio during the shift from fourth to third gear.
The transmission control module (TCM) monitors the gear ratios during shifts. If the actual gear ratio doesn't match the expected ratio during the shift from fourth to third gear, the P17ED code is set. This could be due to a mechanical issue in the transmission or a problem with the TCM or related sensors.
• Check Engine Light is on
• Harsh or delayed shifting
• Transmission slipping
• Faulty transmission solenoid
• Worn or damaged transmission bands or clutches
• Low transmission fluid level
Transmission Control Module (TCM): A computer that controls the operation of the transmission.
Solenoid: An electromechanical device that controls the flow of fluid in the transmission.
• Check the transmission fluid level and condition.
• Inspect the transmission for any mechanical damage.
• Use a scan tool to monitor the TCM data and check for any related codes.
• Replace or repair the faulty transmission solenoid.
• Repair or replace worn transmission bands or clutches.
• Refill or replace transmission fluid if necessary.
• OBD-II scan tool
• Transmission fluid level gauge
• Basic hand tools
$300 - $1500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly check and maintain transmission fluid levels.
• Schedule routine transmission inspections.
• Avoid aggressive driving habits.
Transmission Issue
• Avoid driving the vehicle until the issue is diagnosed and repaired.
• Consult with a professional mechanic for accurate diagnosis.
Transmission repairs might be covered under powertrain warranty if the vehicle is still within the warranty period.
This code has been associated with transmission issues in vehicles with higher mileage or those that have not had regular transmission maintenance.
High – Driving with this issue can cause further damage to the transmission.
Ignoring transmission issues can lead to vehicle breakdowns and pose safety risks.
• Vehicle must be driven to replicate the shift from fourth to third gear.
• Transmission temperature should be within normal operating range.
The transmission control module is typically located near the transmission or under the hood.
Q: Can I drive with a P17ED code?
A: It's not recommended to drive with this code as it can cause further damage to your transmission.
Q: Will changing the transmission fluid fix the P17ED code?
A: Changing the fluid might help if low fluid levels are the cause, but other mechanical issues may still need to be addressed.
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