CVT Road Test
CVT Road Test
1. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on twice).
2. Apply the parking brake, and block both front wheels.
3. Start the engine, then shift the shift lever to D while pressing the brake pedal. Press the accelerator pedal, and release it suddenly. The engine should not stall.
4. Repeat step 3 in all shift lever positions.
5. Connect the HDS to the DLC (A) located under the driver's side of the dashboard.
6. Turn the ignition switch to ON (II).
7. Make sure the HDS communicates with the PCM, and go to the A/T Data List. If it does not, go to the DLC circuit troubleshooting Testing and Inspection.
8. Prepare the HDS to take a HIGH SPEED SNAPSHOT (refer to the HDS user's guide for more details if needed):
- Select High Speed icon.
- Select these parameters:
- Vehicle Speed
- Driven Pulley rpm
- Drive Pulley rpm
- Engine Speed
- APP Sensor A (V)
- CVTF Temp Sensor (V)
- Battery Voltage
- Brake Switch
- Set the Trigger Type to Parameter.
- Adjust the Parameter setting to APP Sensor A (V) above 1.1 V.
- Set the recording time to 60 seconds.
- Set the Trigger point to -30 seconds.
9. Find a suitable level road. When you are ready to do the test, press OK with the HDS.
10. Accelerate quickly until APP Sensor A (V) reads 1.2 V. Maintain a steady throttle until the vehicle reaches a reasonable speed, then slow the vehicle, and come to a stop.
11. Save the snapshot if the entire event was not recorded increase the recording time setting as necessary and repeat step 10.
12. Adjust the Parameter setting to 2.2 V. Test-drive the vehicle again. Accelerate quickly until APP Sensor A (V) reads 2.3 V. Maintain a steady throttle until the vehicle reaches a reasonable speed, then slow the vehicle, and come to a stop.
13. Save the snapshot if the entire event was not recorded increase the recording time setting as necessary and repeat step 12.
14. Accelerate quickly until the accelerator pedal is to the floor. Maintain a steady pedal until the vehicle reaches to reasonable speed, then slow to a stop, and save the snapshot.
15. Review each snapshot individually, and compare the APP Sensor A (V) voltage, the Vehicle Speed, and the Engine Speed to the following table:
D Position:
S Position:
L Position:
16. Park the vehicle on a slope (about 16-degrees), apply the brake, and shift into P. Release the brake; the vehicle should not move.
NOTE: Always use the brake to hold the vehicle, when stopped on an incline in gear. Depending on the grade of the incline, the vehicle could roll backwards if the brake is released.