Auxiliary Transmission Fluid Pump Air Bleeding (2020 2021): Bleeding

NOTE:  The auxiliary transmission fluid pump air bleeding procedure must be done when:

• The auxiliary transmission fluid pump is removed.
• The transmission fluid is replaced.
• The TCM is replaced.
• The transmission is replaced.
• The valve body assembly is replaced.

Procedure With HDS 

1. HDS - Connect
2. Transmission Fluid Level - Check 
3. Engine - Warm Up

   1. Start the engine, and warm up the engine by raising the engine speed around 3, 000 rpm until the cooling fans comes on. 2. Turn the engine off.

4. Auxiliary Transmission Fluid Pump - Air Bleed

   1. Select the Function Test in the A/T SYSTEM, and drive the auxiliary transmission fluid pump for at least 15 seconds with the HDS. NOTE:  Do not drive the auxiliary transmission fluid pump for more than 160 seconds at a time.

5. Transmission Fluid Level - Check 

   Procedure Without HDS 

6. Transmission Fluid Level - Check 
7. Engine - Warm Up

   1. Start the engine, and warm up the engine by raising the engine speed around 3, 000 rpm until the cooling fans comes on.

8. Auxiliary Transmission Fluid Pump - Air Bleed

   1. Do the auto idle stop system operation . If the auto idle stop system does not operate for at least 15 seconds, repeat this procedure and recheck, or do the procedure with the HDS.

9. Transmission Fluid Level - Check 

   Procedure After Replacing TCM and Transmission or Only TCM 

10. Auxiliary Transmission Fluid Pump - Air Bleed

    1. Turn the vehicle to the ON mode, then wait for at least 2 seconds. 2. Turn the vehicle to the OFF mode, then wait for at least 10 seconds. NOTE:  Do not start the engine. 3. Turn the vehicle to the ON mode, then make sure the shift position indicator does not blink. If the shift position indicator does not blink, the air bleed is complete. If the shift position indicator blinks, repeat from step 2.