CVT Pressure Test
CVT Pressure Test
Special Tools Required
- A/T high pressure gauge 07AAJ-PLYA100
- A/T pressure hose, 2,210 mm 07MAJ-PY4011A
- A/T pressure hose adapter 07MAJ-PY40120
- A/T oil pressure gauge set 07406-0020401
- A/T low pressure gauge 07406-0070301
NOTE:
- Do not test pressure for more than 10 seconds at a time.
- Do not move the shift lever while raising the engine speed.
- Disable the VSA (if equipped) by pressing the VSA OFF switch.
- ABS or VSA DTC(s) may come on during the test-drive. If the ABS or VSA DTC(s) come on, clear the DTC(s) with the HDS.
1. Make sure the transmission fluid is filled to the proper level. Service and Repair
2. Raise the vehicle on a lift, or apply the parking brake, block the rear wheels, and raise the front of the vehicle. Make sure it is securely supported, and allow the front wheels to rotate freely.
3. Remove the front undercover (A) Front Undercover Replacement and the splash shield (B). Splash Shield Replacement
4. Turn the engine off, and connect the HDS to the DLC (A) located under the driver's side of the dashboard.
5. Turn the ignition switch to ON (II).
6. Make sure the HDS communicates with the PCM. If it does not, go to the DLC circuit troubleshooting. Testing and Inspection
7. Use the following pressure gauge, pressure hose, and pressure hose adapter. Do not allow dust or other foreign particles to enter the ports while connecting the gauges.
NOTE:
- Drive pulley pressure and driven pulley pressure may be above 3,430 kPa (35.0 kgf/cm2, 4,989 psi) when there is a transmission problem that causes the PCM to go into fail-safe mode.
- When troubleshooting, you must use the A/T high pressure gauge to measuring drive pulley pressure and driven pulley pressure.
8. Connect the A/T oil pressure gauge set to the reverse brake pressure inspection port (A).
9. Connect the A/T oil pressure gauge set to the forward clutch pressure inspection port (B).
10. Connect the A/T low pressure gauge to the lubrication pressure inspection port (C).
11. Connect the A/T high pressure gauge to the drive pulley pressure inspection port (D) and to the driven pulley pressure inspection port (E).
12. Start the engine, and warm up the engine to normal operating temperature (the radiator fan comes on).
13. Shift the shift lever to D, and measure the forward clutch pressure at the forward clutch pressure inspection port while firmly pressing the brake pedal, and holding the engine speed at 1,700 rpm.
14. Shift to R, and measure the reverse brake pressure at the reverse brake pressure inspection port while firmly pressing the brake pedal, and holding the engine speed at 1,700 rpm.
15. Shift to N, and measure the drive pulley pressure at the drive pulley pressure inspection port while firmly pressing the brake pedal, and holding the engine speed at 1,700 rpm.
16. Measure the driven pulley pressure at the driven pulley pressure inspection port while firmly pressing the brake pedal, and holding the engine speed at 1,700 rpm.
17. Measure the lubrication pressure at the lubrication pressure inspection port while firmly pressing the brake pedal, and holding the engine speed at 3,000 rpm.
18. Turn the engine off, then disconnect the pressure gauges from the pressure inspection ports.
19. Install the sealing bolts and new sealing washers to the pressure inspection ports, and tighten the bolts to 18 N-m (1.8 kgf-m, 13 lbf-ft). Do not reuse the old sealing washer.
20. If the pressures are out of standard, the problems and probable causes are listed in the table.
21. Install the splash shield Splash Shield Replacement and the front undercover. Front Undercover Replacement
22. Check the CVTF level. Service and Repair
