Auxiliary Transmission Fluid Pump Removal, Installation, and Test (2020 2021): Test

NOTE:

Hydraulic pressure measurement of the auxiliary transmission fluid pump is performed by the driven pulley pressure inspection port .
Check for DTCs. If any DTCs are stored, troubleshoot and clear them first.
Keep all foreign particles out of the transmission.
Be sure to check the transmission fluid level after the test. When installing or removing the A/T oil pressure gauge, transmission fluid may run out of the inspection port.

A/T Oil Pressure Gauge - Set

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1. When testing the auxiliary transmission fluid pump pressure at the driven pulley pressure inspection port, select pressure gauge adapters A and E.

NOTE: Other pressure gauge adapters are not used.

Inspection port	Tool
Forward clutch pressure	Pressure gauge adapter B
CVT drive pulley pressure	Pressure gauge adapter B
CVT driven pulley pressure	Pressure gauge adapter A Pressure gauge adapter E
Reverse brake pressure	Pressure gauge adapter B

HDS - Connect
Transmission Fluid Level - Check

Auxiliary Transmission Fluid Pump - Test

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1. Remove the air cleaner .
2. Remove the CVT driven pulley pressure sensor (A)

3. Temporarily install the CVT driven pulley pressure sensor with the sealing washer (B) to pressure gauge adapter A.

4. Assemble the pressure gauge; install the A/T low pressure gauge set to pressure gauge adapter A.

5. Install pressure gauge adapter E (quick connector) to the CVT driven pulley pressure inspection port.

Courtesy of HONDA, U.S.A., INC.

6. Install pressure gauge to pressure gauge adapter E (quick connector).

7. Connect the connector (A) to the CVT driven pulley pressure sensor (B).

8. Temporarily install the air cleaner.

9. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on twice).

10. Turn the engine off.

11. Select the Electrical Oil Pump Activation in the Miscellaneous Test Menu with the HDS, and measure the driven pulley pressure while driving the auxiliary transmission fluid pump.

NOTE:

Do not drive the auxiliary transmission fluid pump for more than 160 seconds at a time.

Pressure	Standard
CVT driven Pulley	216-270 kPa (2.20-2.75 kgf/cm 2, 31.3-39.2 psi)

12. If the pressure is out of the standard, replace the auxiliary transmission fluid pump.

13. Remove the air cleaner.

14. Disconnect the connector from the CVT driven pulley pressure sensor.

15. Remove the pressure gauge and pressure gauge adapter E (quick connector).

16. Remove the CVT driven pulley pressure sensor.

17. Install the CVT driven pulley pressure sensor

18. Install the air cleaner .

All Removed Parts - Install

1. Install the parts in the reverse order of removal.
Transmission Fluid Level - Check