A/T Pressure Test
A/T Pressure Test
Special Tools Required
- A/T Oil Pressure Gauge Set 07406-0020400 or 07406-0020401
- A/T Pressure Hose, 2,210 mm 07MAJ-PY4011A
- A/T Pressure Adapter 07MAJ-PY40120
- Pressure Gauge Adapter 070AJ-RT4A101
NOTE:
- Check for DTCs. If any DTCs are stored, troubleshoot and clear them first.
- Do not allow dust or other foreign particles to enter the port while installing the pressure gauge adapter.
- Disable the VSA by pressing the VSA OFF button.
- Be sure to check the ATF level after each pressure port test. When installing or removing the pressure gauge adapter, ATF may run out of the pressure inspection ports.
- VSA DTC(s) may come on during the test-drive. If the VSA DTC(s) come on, clear the DTC(s) after testing is done with the HDS.
1. Make sure the transmission fluid is filled to the proper level ATF Level Check.
2. Raise the vehicle on a lift, and make sure it is securely supported.
3. Allow all four wheels to rotate freely.
4. Remove the splash shield Service and Repair.
5. Connect the HDS to the DLC (A).
6. Turn the ignition switch to ON (II). 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.
7. Connect the A/T pressure adapter to the A/T pressure hose, then connect the A/T pressure hose to the A/T oil pressure gauge set.
8. When testing the oil pressure with each inspection port, select a suitable adapter from the following table, and connect each adapter to the pressure gauge assembled in step 7.
Line Pressure Test
9. Install pressure gauge adapter C to the line pressure inspection port (A), then connect the A/T pressure adapter to pressure gauge adapter C.
10. Start the engine in P, and warm it up to normal operating temperature (ATF temperature between 122 °F and 212 °F (50 °C and 100 °C)).
11. Shift the shift lever to D.
12. With the APP Sensor opening less than 18 % with the HDS in the A/T Data List, measure the low line pressure from the A/T oil pressure gauge.
13. Measure the normal line pressure while holding the engine speed at 2,000 rpm with the shift lever in P or N.
NOTE: When measuring the normal line pressure, do not measure with the shift lever in other than P or N.
14. Turn the engine off, then remove pressure gauge adapter C from the line pressure inspection port.
15. Install a new sealing bolt to the line pressure inspection port, and tighten the bolt to 20 Nm (2.0 kg-m, 14 lb-ft). Do not reuse the old sealing bolt.
4th Clutch Pressure Test - Engaging 4th Gear
16. Disconnect the transmission fluid pressure switch C (4th clutch) connector, and remove transmission fluid pressure switch C (4th clutch).
17. Install transmission fluid pressure switch C (4th clutch) to pressure gauge adapter A, then connect the A/T pressure adapter (B) to pressure gauge adapter A.
18. Install pressure gauge adapter E (quick connector) to the 4th clutch pressure inspection port (D), then connect pressure gauge adapter A to pressure gauge adapter E (quick connector). Connect the transmission fluid pressure switch C (4th clutch) connector to transmission fluid pressure switch C (4th clutch).
19. Start the engine, and run the vehicle with the sequential sportshift mode in 4th gear.
20. Quickly press the accelerator pedal to read the APP Sensor at 20 % or more with the HDS in the A/T Data List. Measure the 4th clutch pressure from the A/T oil pressure gauge.
NOTE: Do not press the accelerator pedal slowly.
21. Bring the engine back to an idle, then apply the brake pedal to stop the wheels from rotating.
4th Clutch Pressure Test - Engaging Reverse Gear
22. Shift to R, then release the brake pedal. Quickly press the accelerator pedal to read the APP Sensor at 20 % or more with the HDS in the A/T Data List. Measure the 4th clutch pressure from the A/T oil pressure gauge.
NOTE: Do not press the accelerator pedal slowly.
23. Turn the engine off.
24. Disconnect the transmission fluid pressure switch C (4th clutch) connector. Remove the pressure gauge adapter E from the 4th clutch pressure inspection port.
25. Remove transmission fluid pressure switch C (4th clutch) from pressure gauge adapter A.
26. Install transmission fluid pressure switch C (4th clutch) and a new sealing washer, and tighten transmission fluid pressure switch C (4th clutch) to 20 Nm (2.0 kg-m, 14 lb-ft). Do not reuse the old sealing washer.
27. Check the transmission fluid pressure switch C (4th clutch) connector for corrosion, dirt, or oil, and clean or repair if necessary, then connect the connector securely.
Torque Converter Clutch Pressure Test
28. Install pressure gauge adapter B to the torque converter clutch pressure inspection port (A), then connect the A/T pressure adapter to pressure gauge adapter B.
29. Start the engine, and run the vehicle with sequential sportshift mode in 2nd gear.
30. Measure the torque converter clutch pressure while holding the engine speed at 4,000 rpm.
31. Turn the engine off, then remove pressure gauge adapter B from the torque converter clutch pressure inspection port.
32. Install a new sealing bolt to the torque converter clutch pressure inspection port, and tighten the sealing bolt to 20 N-m (2.0 kgf-m, 14 lbf-ft). Do not reuse the old sealing bolt.
1st Clutch Pressure Test
33. Remove the air cleaner Service and Repair.
34. Remove the bolts (A) and clamp (B) securing the under-hood fuse/relay box.
35. Install pressure gauge adapter B to the 1st clutch pressure inspection port (A), then connect the A/T pressure adapter to pressure gauge adapter B.
36. Temporarily install the air cleaner.
37. Start the engine, and run the vehicle with the sequential sportshift mode in 1st gear.
38. Quickly press the accelerator pedal to read the APP Sensor at 20 % or more with the HDS in the A/T Data List. Measure the 1st clutch pressure from the A/T oil pressure gauge.
NOTE: Do not press the accelerator pedal slowly.
39. Turn the engine off, remove the air cleaner.
40. Remove pressure gauge adapter B from the 1st clutch inspection port.
41. Install a new sealing bolt in the 1st clutch pressure inspection port, and tighten the sealing bolt to 20 Nm (2.0 kg-m, 14 lb-ft). Do not reuse the old sealing bolt.
5th Clutch Pressure Test
42. Install pressure gauge adapter B to the 5th clutch pressure inspection port (A), then connect the A/T pressure adapter to pressure gauge adapter B.
43. Temporarily install the air cleaner.
44. Start the engine, and run the vehicle with the sequential sportshift mode in 5th gear.
45. Quickly press the accelerator pedal to read the APP Sensor at 20 % or more with the HDS in the A/T Data List. Measure the 5th clutch pressure from the A/T oil pressure gauge.
NOTE: Do not press the accelerator pedal slowly.
46. Turn the engine off, remove the air cleaner.
47. Remove pressure gauge adapter B from the 5th clutch inspection port.
48. Install a new sealing bolt in the 5th clutch pressure inspection port, and tighten the sealing bolt to 20 Nm (2.0 kg-m, 14 lb-ft). Do not reuse the old sealing bolt.
2nd Clutch Pressure Test
49. Disconnect the transmission fluid pressure switch A (2nd clutch) connector, and remove transmission fluid pressure switch A (2nd clutch).
50. Install transmission fluid pressure switch A (2nd clutch) (B) to pressure gauge adapter A, then connect the A/T pressure adapter (C) to pressure gauge adapter A.
51. Install pressure gauge adapter E (quick connector) to the 2nd clutch pressure inspection port (D), then connect pressure gauge adapter A to pressure gauge adapter E (quick connector). Connect the transmission fluid pressure switch A (2nd clutch) connector to transmission fluid pressure switch A (2nd clutch).
52. Temporarily install the air cleaner.
53. Start the engine, and run the vehicle with the sequential sportshift mode in 2nd gear.
54. Quickly press the accelerator pedal to read the APP Sensor at 20 % or more with the HDS in the A/T Data List. Measure the 2nd clutch pressure from the A/T oil pressure gauge.
NOTE: Do not press the accelerator pedal slowly.
55. Turn the engine off, remove the air cleaner.
56. Disconnect the transmission fluid pressure switch A (2nd clutch) connector from transmission fluid pressure switch A (2nd clutch). Remove the pressure gauge adapter E from the 2nd clutch pressure inspection port.
57. Remove transmission fluid pressure switch A (2nd clutch) from pressure gauge adapter A.
58. Install transmission fluid pressure switch A (2nd clutch) and a new sealing washer, and tighten transmission fluid pressure switch A (2nd clutch) to 20 Nm (2.0 kg-m, 14 lb-ft). Do not reuse the old sealing washer.
59. Check the transmission fluid pressure switch A (2nd clutch) connector for corrosion, dirt, or oil, and clean or repair if necessary, then connect the connector securely.
3rd Clutch Pressure Test
60. Install pressure gauge adapter D to the 3rd pressure inspection port (A), then connect the A/T pressure adapter to pressure gauge adapter D.
61. Temporarily install the air cleaner.
62. Start the engine, and run the vehicle with the sequential sportshift mode in 3rd gear.
63. Quickly press the accelerator pedal to read the APP Sensor at 20 % or more with the HDS in the A/T Data List. Measure the 3rd clutch pressure from the A/T oil pressure gauge.
NOTE: Do not press the accelerator pedal slowly.
64. Turn the engine off, remove the air cleaner.
65. Remove pressure gauge adapter D from the 3rd clutch inspection port.
66. Install the sealing bolt in the 3rd clutch pressure inspection port with a new sealing washer, and tighten the sealing bolt to 27 Nm (2.8 kg-m, 20 lb-ft). Do not reuse the old sealing washer.
6th Clutch Pressure Test
67. Install pressure gauge adapter D to the 6th pressure inspection port (A), then connect the A/T pressure adapter to pressure gauge adapter D.
68. Temporarily install the air cleaner.
69. Start the engine, and run the vehicle with the sequential sportshift mode in 6th gear.
70. Quickly press the accelerator pedal to read the APP Sensor at 20 % or more with the HDS in the A/T Data List. Measure the 6th clutch pressure from the A/T oil pressure gauge.
NOTE: Do not press the accelerator pedal slowly.
71. Turn the engine off, remove the air cleaner.
72. Remove pressure gauge adapter D from the 6th clutch inspection port.
73. Install the sealing bolt in the 6rd clutch pressure inspection port with a new sealing washer, and tighten the sealing bolt to 27 Nm (2.8 kg-m, 20 lb-ft). Do not reuse the old sealing washer.
74. Secure the under-hood fuse/relay box with the bolts.
75. Install the air cleaner Service and Repair.
76. If any of the pressures are out of the service limit, refer to the problems and probable causes listed in the table.
77. Install the splash shield Service and Repair.
78. Check the ATF level ATF Level Check.
79. Do an all DTC check with the HDS. If necessary, clear the DTC(s) with the HDS.