Honda Pilot: A/T Pressure Test

Exploded View

1. Pressure Inspection Port - Exploded View

Exploded View

Test

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.
• 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.
• Disable the VSA by entering the VSA Maintenance Mode.
• 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. Vehicle - Lift Set

2. ATF Level - Check

3. HDS DLC - Connect

4. A/T Oil Pressure Gauge - Set

1. Connect the A/T pressure test hose to the A/T oil pressure gauge set.

2. When testing the oil pressure at each inspection port, select a suitable adapter from the following table, and connect each adapter to the A/T oil pressure gauge assembled in the previous step.

Inspection port	Tool
Line pressure	Pressure gauge adapter D A/T pressure adapter
Torque converter clutch pressure	Pressure gauge adapter C A/T pressure adapter
1st clutch pressure	Pressure gauge adapter C A/T pressure adapter
2nd clutch pressure	Pressure gauge adapter A Pressure gauge adapter E
3rd clutch pressure	Pressure gauge adapter D A/T pressure adapter
4th clutch pressure	Pressure gauge adapter A Pressure gauge adapter G A/T pressure adapter
5th clutch pressure	Pressure gauge adapter B
6th clutch pressure	Pressure gauge adapter D A/T pressure adapter

5. Vehicle - Lift Up

6. Splash Shield - Remove

7. Line Pressure - Test

1. Remove the connector clamp (A) and the harness clamp (B).

2. Remove the sealing bolt (A).
3. Install the A/T oil pressure gauge with pressure gauge adapter D and the A/T pressure adapter to the line pressure inspection port.

4. Start the engine in P, and warm it up to normal operating temperature (ATF temperature between 122 ºF and 212 ºF (50 ºC and 100 ºC) ).
5. Shift the shift lever to D.
6. Measure the low line pressure from the A/T oil pressure gauge when the APP Sensor (%) is less than 25 % and Line Pressure Sol VLV. A is ON with the HDS in the A/T Data List.
7. Shift the shift lever to P or N.
8. Measure the high line pressure from the A/T oil pressure gauge 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.

9. Turn the engine off.
10. If the line pressures are out of the service limit, refer to the problem and probable cause(s) listed in the table.

Problem	Probable cause(s)
No or low line pressure	Torque converter ATF pump Main regulator valve Clogged ATF strainer

11. Remove the A/T oil pressure gauge.

12. Install a new sealing bolt (A).

NOTE: Do not reuse the old sealing bolt.

13. Install the harness clamp (A) and the connector clamp (B).

8. Torque Converter Clutch Pressure - Test

1. Remove the sealing bolt (A).
2. Install the A/T oil pressure gauge with pressure gauge adapter C and the A/T pressure adapter to the torque converter clutch pressure inspection port.

3. Enter the VSA Maintenance Mode.
4. Start the engine.
5. Shift the shift lever to L.
6. Run the vehicle in 2nd gear.

   NOTE: Make sure the gear position with the HDS in the A/T Data List.

7. Measure the torque converter clutch pressure from the A/T oil pressure gauge while holding the engine speed at 2,000 rpm in 2nd gear.

8. Bring the engine back to an idle, then apply the brake pedal to stop the wheels from rotating.
9. Shift the shift lever to P.
10. Turn the engine off.
11. If the torque converter clutch pressure is out of the service limit, refer to the problem and probable cause(s) listed in the table.

Problem	Probable cause(s)
No or low torque converter clutch pressure	Lockup control valve Lockup shift valve Shift solenoid valve C

12. Remove the A/T oil pressure gauge.

13. Install a new sealing bolt (A).

    NOTE: Do not reuse the old sealing bolt.

9. Line Pressure Solenoid Valve A Connector - Disconnect

NOTE: Disconnect the line pressure solenoid valve A connector because the 1st, 2nd, 3rd, 4th, 5th, and 6th clutch pressure tests must be done by the normal line pressure mode.

1. Disconnect the line pressure solenoid valve A connector (A) located behind the starter (B).

10.Engine Undercover - Remove

11.A/T Oil Pressure Gauge (2nd Clutch Pressure Inspection Port) - Install

1. Disconnect the transmission fluid pressure switch A (2nd clutch) connector (B).
2. Remove transmission fluid pressure switch A (2nd clutch) with the sealing washer (C).

NOTE: Loosen the switch by gripping the metal part, not the plastic part.

3. Temporarily install transmission fluid pressure switch A (2nd clutch) (B) with the sealing washer (C) to pressure gauge adapter A .

4. Install the A/T oil pressure gauge with pressure gauge adapter A, pressure gauge adapter E, and the A/T pressure adapter to the 2nd clutch pressure inspection port (B).
5. Connect the transmission fluid pressure switch A (2nd clutch) connector (C).

12.Vehicle - Lift Down

13.Front Bulkhead Cover - Remove

14.Air Intake Tube - Remove

15.Air Cleaner - Remove

16.Intake Air Duct - Remove

1. Disconnect the breather pipe (A).

17.Harness Holder Bracket - Remove

1. Remove the harness holder (A).
2. Remove the harness holder bracket (B).

18.A/T Oil Pressure Gauge (1st Clutch Pressure Inspection Port) - Install

1. Remove the sealing bolt (A).

2. Install the A/T oil pressure gauge with pressure gauge adapter C and the A/T pressure adapter to the 1st clutch pressure inspection port.

19.A/T Oil Pressure Gauge (3rd Clutch Pressure Inspection Port) - Install

1. Remove the bolt (A) with the sealing washer (B).

2. Install the A/T oil pressure gauge with pressure gauge adapter D and the A/T pressure adapter to the 3rd clutch pressure inspection port.

20.1st, 2nd and 3rd Clutch Pressure - Test

1. Temporarily install the intake air duct and the air cleaner.
2. Enter the VSA Maintenance Mode.
3. Start the engine.
4. Shift the shift lever to L.
5. Run the vehicle in 2nd gear.

NOTE: Make sure the gear position with the HDS in the A/T Data List.

6. Measure the 1st and 2nd clutch pressure from the A/T oil pressure gauge while holding the engine speed at 2,000 rpm in 2nd gear.

7. Bring the engine back to an idle, then apply the brake pedal to stop the wheels from rotating.
8. Shift the shift lever to D.
9. Run the vehicle in 3rd gear.

   NOTE: Make sure the gear position with the HDS in the A/T Data List.

10. Measure the 3rd clutch pressure from the A/T oil pressure gauge while holding the engine speed at 2,000 rpm in 3rd gear.

11. Bring the engine back to an idle, then apply the brake pedal to stop the wheels from rotating.
12. Shift the shift lever to P.
13. Turn the engine off.
14. If the clutch pressure is out of the service limit, refer to the problem and probable cause(s) listed in the table.

Problem	Probable cause(s)
No or low 1st clutch pressure	1st clutch
No or low 2nd clutch pressure	2nd clutch
No or low 3rd clutch pressure	3rd clutch

15. Remove the air cleaner and the intake air duct.

21.A/T Oil Pressure Gauge (3rd Clutch Pressure Inspection Port) - Remove

1. Install the bolt (A) with a new sealing washer (B).

   NOTE: Do not reuse the old sealing washer.

22.A/T Oil Pressure Gauge (1st Clutch Pressure Inspection Port) - Remove

1. Install a new sealing bolt (A).

   NOTE: Do not reuse the old sealing bolt.

23.Vehicle - Lift Up

24.A/T Oil Pressure Gauge (2nd Clutch Pressure Inspection Port) - Remove

1. Install the transmission fluid pressure switch A (2nd clutch) with a new sealing washer (B).

   NOTE: Tighten the switch by gripping the metal part, not the plastic part.

2. Connect the transmission fluid pressure switch A connector (C).

25.Engine Undercover - Install

26.A/T Oil Pressure Gauge (4th Clutch Pressure Inspection Port) - Install

1. Disconnect the transmission fluid pressure switch C (4th clutch) connector (A).
2. Remove transmission fluid pressure switch C (4th clutch) with the sealing washer (B).

   NOTE: Loosen the switch by gripping the metal part, not the plastic part.

3. Temporarily install transmission fluid pressure switch C (4th clutch) with the sealing washer (B) to pressure gauge adapter A.

4. Install the A/T oil pressure gauge with pressure gauge adapter A and pressure gauge adapter G to the 4th clutch pressure inspection port.
5. Connect the transmission fluid pressure switch C (4th clutch) connector (B).

27.Vehicle - Lift Down

28.A/T Oil Pressure Gauge (5th Clutch Pressure Inspection Port) - Install

1. Remove the sealing bolt (A).

2. Install the A/T oil pressure gauge with pressure gauge adapter B to the 5th clutch pressure inspection port.

29.A/T Oil Pressure Gauge (6th Clutch Pressure Inspection Port) - Install

1. Remove the bolt (A) with the sealing washer (B).
2. Install the A/T oil pressure gauge with pressure gauge adapter D and the A/T pressure adapter to the 6th clutch pressure inspection port.

30.4th, 5th and 6th Clutch Pressure - Test

1. Temporarily install the intake air duct and the air cleaner.
2. Enter the VSA Maintenance Mode.
3. Start the engine.
4. Shift the shift lever to D.
5. Run the vehicle in 4th gear.

   NOTE: Make sure the gear position with the HDS in the A/T Data List.

6. Measure the 4th clutch pressure from the A/T oil pressure gauge while holding the engine speed at 2,000 rpm in 4th gear.

7. Run the vehicle in 5th gear.

   NOTE: Make sure the gear position with the HDS in the A/T Data List.

8. Measure the 5th clutch pressure from the A/T oil pressure gauge while holding the engine speed at 2,000 rpm in 5th gear.

9. Run the vehicle in 6th gear.

   NOTE: Make sure the gear position with the HDS in the A/T Data List.

10. Measure the 6th clutch pressure from the A/T oil pressure gauge while holding the engine speed at 2,000 rpm in 6th gear.

11. Bring the engine back to an idle, then apply the brake pedal to stop the wheels from rotating.
12. If the clutch pressure is out of the service limit, refer to the problem and probable cause(s) listed in the table.

Problem	Probable cause(s)
No or low 4th clutch pressure	4th clutch
No or low 5th clutch pressure	5th clutch
No or low 6th clutch pressure	6th clutch

31.4th Clutch Pressure (Engaging Reverse Gear) - Test

1. Shift the shift lever to R.
2. Release the brake pedal.
3. Measure the 4th clutch pressure from the A/T oil pressure gauge while holding the engine speed at 2,000 rpm in R.

4. Bring the engine back to an idle, then apply the brake pedal to stop the wheels from rotating.
5. Shift the shift lever to P.
6. Turn the engine off.
7. If the 4th clutch pressure is out of the service limit, refer to the problem and probable cause(s) listed in the table.

Problem	Probable cause(s)
No or low 4th clutch pressure in R	Shift fork shaft 4th clutch

8. Remove the air cleaner and the intake air duct.

32.A/T Oil Pressure Gauge (6th Clutch Pressure Inspection Port) - Remove

1. Install the bolt (A) with a new sealing washer (B).

   NOTE: Do not reuse the old sealing washer.

33.A/T Oil Pressure Gauge (5th Clutch Pressure Inspection Port) - Remove

1. Install a new sealing bolt (A).

   NOTE: Do not reuse the old sealing bolt.

34.Vehicle - Lift Up

35.A/T Oil Pressure Gauge (4th Clutch Pressure Inspection Port)  -Remove

1. Install transmission fluid pressure switch C (4th clutch) with a new sealing washer (A).

   NOTE: Tighten the switch by gripping the metal part, not the plastic part.

2. Connect the transmission fluid pressure switch C (4th clutch) connector (B).

36.Line Pressure Solenoid Valve A Connector - Connect

1. Connect the line pressure solenoid valve A connector (A) located behind the starter (B).

37.Splash Shield - Install

38.Vehicle - Lift Down

39.Harness Holder Bracket - Install

1. Install the harness holder bracket (A).
2. Install the harness holder (B).

40.Intake Air Duct - Install

1. Install the intake air duct.

   NOTE: When you tighten the band, refer to the throttle body removal and installation procedure.

2. Connect the breather pipe (A).

41.Air Cleaner - Install

42.Air Intake Tube - Install

43.Front Bulkhead Cover - Install

44.ATF Level - Check

Special Tool Required

• Pressure Gauge Adapter 070AJ-RT4A101

• Pressure Gauge Adapter G 070AJ-RT4A170

• A/T Oil Pressure Gauge Set 07406-0020400 or 07406-0020401

• A/T Pressure Adapter 07MAJ-PY40120

• A/T Pressure Test Hose 07AAJ-PY4A100