U1426
Implausible TCC Slip Request Signal Received
U1426 is an OBD-II diagnostic trouble code meaning: Implausible TCC Slip Request Signal Received. Common causes: problems with wiring to the turbine speed sensor, turbine speed sensor malfunction. Estimated repair cost: $33–167.
Symptoms
- Check Engine light comes on
- Increased fuel consumption
- Unstable operation at high speeds
- Gear shifting problems
- Vibration when the clutch is engaged
Causes
- Problems with wiring to the turbine speed sensor
- Turbine speed sensor malfunction
- Mechanical problems with the torque converter clutch
- Low transmission fluid level
- Transmission control module (TCM) malfunction
How to Fix
- Check the level and condition of the transmission fluid
- Diagnose the turbine speed sensor circuit
- Check the operation of the turbine speed sensor
- Diagnose the torque converter
- If necessary, replace the torque converter clutch
Related codes
FAQ
What does the U1426 code mean?
U1426 is an OBD-II diagnostic trouble code that indicates: Implausible TCC Slip Request Signal Received
What causes a U1426 error code?
The most common causes of U1426 include: Problems with wiring to the turbine speed sensor; Turbine speed sensor malfunction; Mechanical problems with the torque converter clutch; Low transmission fluid level.
How do I fix a U1426 diagnostic trouble code?
To fix U1426: Check the level and condition of the transmission fluid. Diagnose the turbine speed sensor circuit. Check the operation of the turbine speed sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1426?
Yes, but get it checked soon
How much does it cost to fix U1426?
The estimated repair cost for U1426 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat