Transmission Service Fast Learn Procedure (MR8): Troubleshooting
WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
If the Transmission Service Fast Learn procedure will not run and the above stated conditions have been met, verify the following:
- The transmission is a RPO MR8 CVT.
- Vehicle model year.
- Transmission Fluid Temperature 50 to 100°C (122 to 212°F)
- Engine Coolant Temperature. Less than 130°C (266°F)
- Brakes and brake switch are functioning properly.
- Current DTC=
- Closed throttle and engine RPM increases above 1, 500 RPM while at entrance of the test.
- Park/Neutral position switch is properly adjusted and functioning.
- Line pressure control is able to provide 1, 000 kPa and is within specifications.
- Vehicle is not moving or vibrating excessively.
- Clutches are properly assembled.
- Transmission accumulator can maintain greater than 3, 000 kPa.