Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means the car's computer noticed that the engine and the part that helps it change gears aren't working together like they should when the car is in a certain gear.
The code indicates a discrepancy between the engine speed and the turbine speed within the transmission when the vehicle is in a specific gear range.
P1726 is triggered when the Powertrain Control Module (PCM) detects a mismatch between the engine speed and the turbine speed in the transmission while in a specific gear range (usually Neutral). This can indicate a problem with the transmission or related sensors.
• Check Engine Light is on
• Transmission slipping
• Poor vehicle performance
• Faulty transmission speed sensor
• Wiring issues in the transmission circuit
• Malfunctioning PCM
PCM: Powertrain Control Module
Turbine Speed Sensor: A sensor that measures the speed of the transmission turbine.
• Use an OBD-II scanner to confirm the code.
• Inspect the transmission speed sensor and its wiring.
• Check the PCM for any issues.
• Replace the faulty transmission speed sensor.
• Repair or replace damaged wiring.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $800
Moderate
• Nissan Altima
• Ford F-150
• Toyota Camry
• Regular transmission maintenance
• Timely replacement of transmission fluid
• Routine inspection of transmission components
Transmission Issue
• Do not ignore the Check Engine Light.
• Seek professional diagnosis if unsure.
• Avoid driving the vehicle until the issue is resolved.
Transmission-related repairs may be covered under the powertrain warranty.
This code has been associated with transmission issues in older models, particularly those with high mileage.
High – Ignoring this issue can lead to severe transmission damage.
Driving with a faulty transmission can be dangerous and may violate vehicle safety regulations.
• Vehicle in Neutral
• Engine running
The transmission speed sensor is typically located on the transmission housing.
Q: Can I drive my car with code P1726?
A: It's not recommended as it can cause further damage to the transmission.
Q: How long does it take to fix code P1726?
A: Repair time can vary, but it typically takes a few hours depending on the exact issue.
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