Honda HR-V: Rear Differential Pressure Test (AWD)

Test

NOTE: Before doing the pressure test, check the following conditions.

• Check that the AWD system indicator does not come on. If it does, check for AWD with intelligent control system DTCs.
• Check the rear differential fluid level.
• Check for rear differential fluid leaks at the rear differential assembly.

1. HDS - Connect

2. Rear Differential Fluid Pressure - Test

1. Select DATA LIST in the AWD WITH INTELLIGENT CONTROL with the HDS
2. Select OIL TEMPERATURE FOR REAR DIFFERENTIAL in the DATA LIST with the HDS.
   • If the temperature is above 68ºF (20ºC), go to step 3.
   • If the temperature is below 68ºF (20ºC), drive the vehicle to warm up the rear differential until fluid temperature reaches at least 68ºF (20ºC), then go to step 3.
3. Start the engine
4. Select FUNCTIONAL TEST in the AWD WITH INTELLIGENT CONTROL with the HDS
5. Select OIL PRESSURE CONTROL TEST in the FUNCTIONAL TEST with the HDS
6. Check the results displayed on the HDS.
   • If Normal is displayed, the test is completed.
   • If 1-1 is displayed, go to steps 7 through 21.
   • If 2-1 and 5-1 are displayed: go to steps 22 through 36.
   • If 3-1 is displayed: go to steps 37 through 50.
   • If 4-1 and 6-1 are displayed: go to steps 51 through 58.
7. Turn the vehicle to the OFF (LOCK) mode
8. Disconnect the connector (A)
9. Remove the rear differential fluid pressure sensor (B)
10. Reconnect the connector (A) to the rear differential fluid pressure sensor (B)
11. Turn the vehicle to the ON mode
12. Select the DATA LIST in the AWD WITH INTELLIGENT CONTROL with the HDS.
13. Check the ACTUAL OIL PRESSURE OF THE OIL PRESSURE SENSOR FOR REAR DIFFERENTIAL in the DATA LIST with the HDS.
    • If the fluid pressure is not within -50-50 kPa (-0.51-0.51 kgf/cm2, -7.3-7.3 psi), replace the rear differential fluid pressure sensor.
    • If the fluid pressure is within the range of -50-50 kPa (-0.51-0.51 kgf/cm2, -7.3-7.3 psi), go to step 14.
14. Replace the rear differential fluid.
15. Install the rear differential fluid pressure sensor.
16. Do the AWD system bleeding with the HDS.
17. Select FUNCTIONAL TEST in the AWD WITH INTELLIGENT CONTROL with the HDS.
18. Start the engine.
19. Select OIL PRESSURE CONTROL TEST in the FUNCTIONAL TEST with the HDS.
20. Check the results displayed on the HDS.
    • If Normal is displayed, the test is completed.
    • If 1-1 is displayed: go to step 21.
21. Do the rear differential fluid pressure sensor test with the HDS. If the rear differential fluid pressure sensor test is OK, replace the rear differential assembly.
22. Turn the vehicle to the OFF (LOCK) mode.
23. Turn the vehicle to the ON mode.
24. Do the AWD system bleeding with the HDS.
25. Start the engine.
26. Select FUNCTIONAL TEST in the AWD WITH INTELLIGENT CONTROL with the HDS.
27. Select OIL PRESSURE CONTROL TEST in the FUNCTIONAL TEST with the HDS.
28. Check the results displayed on the HDS.
    • If Normal is displayed, intermittent failure, the system is OK at this time, the test is completed.
    • If 2-1 and 5-1 are displayed: go to step 29.
29. Replace the rear differential fluid.
30. Do the AWD system bleeding with the HDS.
31. Start the engine.
32. Select FUNCTIONAL TEST in the AWD WITH INTELLIGENT CONTROL with the HDS.
33. Select OIL PRESSURE CONTROL TEST in the FUNCTIONAL TEST with the HDS.
34. Check the results displayed on the HDS.
    • If Normal is displayed, the test is completed.
    • If 2-1 and 5-1 are displayed: go to step 35.
35. Replace the rear differential fluid.
36. Do the rear differential fluid pressure sensor test and the rear differential solenoid valve test with the HDS. If the rear differential fluid pressure sensor test and the rear differential solenoid valve test is OK, replace the rear differential assembly.
37. Turn the vehicle to the OFF (LOCK) mode.
38. Turn the vehicle to the ON mode.
39. Do the AWD system bleeding with the HDS.
40. Start the engine.
41. Select FUNCTIONAL TEST in the AWD WITH INTELLIGENT CONTROL with the HDS.
42. Select OIL PRESSURE CONTROL TEST in the FUNCTIONAL TEST with the HDS.
43. Check the results displayed on the HDS.
    • If Normal is displayed, intermittent failure, the system is OK at this time, the test is completed.
    • If 3-1 is displayed: go to step 44.
44. Replace the rear differential fluid.
45. Do the AWD system bleeding with the HDS.
46. Start the engine.
47. Select FUNCTIONAL TEST in the AWD WITH INTELLIGENT CONTROL with the HDS.
48. Select OIL PRESSURE CONTROL TEST in the FUNCTIONAL TEST with the HDS.
49. Check the results displayed on the HDS.
    • If Normal is displayed, the test is completed.
    • If 3-1 is displayed: go to step 50.
50. Do the rear differential solenoid valve test with the HDS. If the rear differential solenoid valve test is OK, replace the rear differential assembly.
51. Turn the vehicle to the OFF (LOCK) mode.
52. Replace the rear differential fluid.
53. Do the AWD system bleeding with the HDS.
54. Start the engine.
55. Select FUNCTIONAL TEST in the AWD WITH INTELLIGENT CONTROL with the HDS.
56. Select OIL PRESSURE CONTROL TEST in the FUNCTIONAL TEST with the HDS.
57. Check the results displayed on the HDS.
    • If Normal is displayed, the test is completed.
    • If 4-1 and 6-1 are displayed: go to step 58.
58. Do the rear differential solenoid valve test with the HDS. If the rear differential solenoid valve test is OK, replace the rear differential assembly.

REAR DIFFERENTIAL SOLENOID VALVE TEST (AWD)

Test

1. HDS - Connect

2. Rear Differential Solenoid Valve - Test (With HDS)

1. Start the engine
2. Select the FUNCTIONAL TEST in the AWD WITH INTELLIGENT CONTROL with the HDS
3. Select the SOLENOID TEST in the FUNCTIONAL TEST with the HDS
4. Do LEVEL 1, then do LEVEL 7 of the SOLENOID TEST in that order with the HDS
5. Check the rear differential solenoid valve for operation with the HDS. A clicking sound should be heard.
   • If no clicking sound is heard, replace the rear differential solenoid valve.
   • If a clicking sound is heard, go to the next procedure.

3. Vehicle - Lift

4. Rear Differential Solenoid Valve - Remove

5. Rear Differential Solenoid Valve - Test

1. Connect a tube (A) to the rear differential solenoid valve (B)
2. Blow the air to the tube.
   • If the air flows out of the port, go to step 3.
   • If the air does not flow out of the port, replace the rear differential solenoid valve.

3. Connect a jumper wire from the negative battery terminal to the rear differential solenoid valve body, and connect another jumper wire from the positive battery terminal to connector terminal No. 1
4. Blow the air to the tube.
   • If the air flows out of the port, replace the rear differential solenoid valve.
   • If the air does not flow out of the port, the rear differential solenoid valve is OK, and the test is complete.

6. Rear Differential Solenoid Valve - Install

7. Rear Differential Fluid - Refill

8. AWD System - Air Bleed

9. Test Drive - Check

READ NEXT: