CVT Pressure Tests
Special Tools Required
A/T oil pressure gauge set( 07406-0020004)
A/T low pressure gauge( 07406-0070001)
| 1. | Before testing be sure the transmission fluid is filled to the proper level.
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| 2. | Raise the front of the vehicle, and make sure it is securely supported.
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| 3. | Set the parking brake, and block rear wheels securely.
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| 4. | Remove the splash shield.
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| 5. | Allow the front wheels to rotate freely.
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| 6. | Warm up the engine (the radiator fan comes on), then stop it and connect the tachometer.
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| 7. | Connect the special tool (07406-0020004) to the forward clutch pressure inspection hole (A).
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| 8. | Connect the special (07406-0020004) to the reverse brake inspection hole (B).
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| 9. | Connect a commercial available oil pressure gauge that measures 4,900 kPa (4.90 MPa, 50.0 kgf/cm2, 711 psi) or more, and use the special tool (07406-0020004) to the drive pulley pressure inspection hole (C) and driven pulley pressure inspection hole (D).
NOTE: Drive pulley pressure and driven pulley pressure may be above 3,430 kPa (3.43 MPa, 35.0 kgf/cm2, 498 psi) when there is a transmission problem that cause the PCM to go into the fail-safe mode.
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| 10. | Connect the special tool (07406-0070001) to the lubrication pressure inspection hole (E).
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| 12. | Shift to D position, and measure the forward clutch pressure at 1,700 rpm (min-1).
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| 13. | Shift to R position, and measure the reverse brake pressure at 1,700 rpm (min-1).
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| 14. | Shift to N position, and measure the drive pulley pressure and driven pulley pressure at 1,700 rpm (min-1).
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| 15. | Measure the lubrication pressure at 2,500 rpm (min-1).
| Pressure | Service Limit | | Forward Clutch | 1.44-1.71 MPa
(14.7-17.4 kgf/cm2, 209-247 psi) | | Reverse Brake | 1.44-1.71 MPa
(14.7-17.4 kgf/cm2, 209-247 psi) | | Drive Pulley | 0.31-0.58 MPa
(3.2-5.9 kgf/cm2, 46-84 psi) | | Driven Pulley | 0.43-0.91 MPa
(4.4-9.3 kgf/cm2, 63-130 psi) | | Lubrication | 0.27-0.40 MPa
(2.8-4.1 kgf/cm2, 40-58 psi) |
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| 16. | Disconnect the special tools and oil pressure gauge after pressure testing.
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| 17. | Install the sealing bolts with new sealing washers, and tighten the bolts to 18 N·m, (1.8 kgf·m, 13 lbf·ft). Do not reuse the sealing washers.
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| 18. | If the measurements are out of the service limit, problems and probable causes are listed in the table below.
| Problem | Probable Cause | | No or low forward clutch pressure | | | No or low reverse brake pressure | | | No or low drive pulley pressure | - ATF pump
- PH regulator valve
- Drive pulley control valve
- Driven pulley control valve
| | Drive pulley pressure too high | - PH regulator valve
- Drive pulley control valve
- Driven pulley control valve
- CVT speed change control valve
| | No or low driven pulley pressure | - ATF pump
- PH regulator valve
- Drive pulley control valve
- Driven pulley control valve
- CVT pulley pressure control valve
| | Driven pulley pressure too high | | | No or low lubrication pressure | - ATF pump
- Lubrication valve
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Honda Fit/Jazz 02-05 Workshop Manual
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