94109-14000

1

Auto Air Conditioner CPU Assembly (A/C Control Unit)

79600-TLA-A62

1

Part Name

Part Number

Quantity

Spark Plugs

12290-5PA-A01

4

REQUIRED MATERIAL
NOTE
For Non-Bulk oil and Bulk oil dealers, add the correct information into the Required Material section of your
claim.
Part Name

Part Number

Quantity

0W-20 (Non-Bulk Oil Participants) (quarts)

08798-9063

4

0W-20 (Bulk Oil Participants) (gallons)

FS020-BAS-N0L

1

SOFTWARE INFORMATION
NOTE
Unnecessary or incorrect repairs resulting from a failure to update the i-HDS are not covered under warranty.
i-HDS Software Version: 1.004.064 or later
J2534 Software Information:
•

PC Application Version 1.1.0.6 or later

•

Database update 12-MAR-2019 or later

Before beginning the repair, make sure that both the i-HDS and J2534 software are updated as listed above.
For more information about updating the i-HDS, the MVCI, and vehicle systems, refer to Service Bulletin 01-023,
Updating Control Units/Modules.
Year/Model

Software
System

Program ID (or later)

Program P/N (or later)

2017 CR-V (2WD)

PGM-FI

PA3060

37805-5PA-306

2017 CR-V (AWD)

PGM-FI

PA3080

37805-5PA-308

2018 CR-V (2WD)

PGM-FI

PAA690

37805-5PA-A69

2018 CR-V (AWD)

PGM-FI

PAA890

37805-5PA-A89

2017-18 CR-V (2WD)

TCM

RHA040

28101-5RH-A04

2017-18 CR-V (AWD)

TCM

RGA040

28101-5RG-A04

Page 5 of 21

REPAIR PROCEDURE A
If misfire or fuel system too rich DTCs are set, follow the procedure below.
1. Reset maintenance minder main code A. Refer to the service information.
2. Drain and refill the engine oil (3.4 quarts). Do not replace the oil filter.
3. Connect the i-HDS and click on the Body Electrical. From there, select HVAC and open Data List/Snapshot to
check if the A/C control unit has been replaced. One of three options will appear; Not Complete, Completed, or
Not Applicable.
•

If it reads Completed or Not Applicable, skip to step 5.

•

If it reads Not Complete, go to step 4.

4. Replace the A/C control unit.
4.1. Remove the passenger's dashboard side lid and the dashboard undercover.

Page 6 of 21

4.2. Remove the glove box.

4.3. Remove the A/C control unit and replace with the new unit.

4.4. Install all parts in reverse order.
4.5. Run the self-diagnostics procedure with the i-HDS to make sure there are no problems in the system and
clear any HVAC system DTCs that might appear.

Page 7 of 21

5. With the i-HDS, check to see if the PGM-FI and TCM software has been updated by using the J2534 rewriting
application.
•

If they are up to date, the procedure is complete.

•

If not, go to step 6.

6. Update the PGM-FI and TCM software using the i-HDS J2534 rewrite software with the MVCI or DST-i. Refer to
Service Bulletin 01-023, Updating Control Units/Modules.
NOTES
•

Connect a fully charged jumper battery and leave it connected during the entire procedure to maintain steady
voltage.

•

Never turn the ignition to OFF or ACCESSORY during the update. If there is a problem with the update, leave
the ignition turned to ON.

•

To prevent control unit damage, do not operate anything electrical (headlights, audio system, brakes, A/C power
windows, door locks, etc.) during the update.

•

Do not use the MongoosePro VCI tool.

7. Reset the throttle position learned values by referencing the throttle body removal and installation in the service
information, then do the PCM idle learn procedure. Refer to service information for additional instructions.
NOTE
For more information on the PCM idle learn procedure, see the Tech2Tech® video, "A Look at PCM Idle Learn".

Page 8 of 21

SPARK PLUG INSPECTION PROCEDURE
1. In some cases, the DTCs may return. If this happens, inspect the spark plugs.

•

If the spark plugs are OK, the procedure is complete. Continue with normal troubleshooting.

•

If the spark plugs are fouled, go to step 2.

2. Replace the spark plugs per service information and check for stored DTCs.
NOTE
Make sure to write down the stored DTCs on the R.O.
•

If the applicable DTCs do not return, the procedure is complete.

•

If the applicable DTCs return, this bulletin does not apply. Continue with normal troubleshooting.

Page 9 of 21

REPAIR PROCEDURE B
If there is a whirling noise coming from the engine, follow the procedure below.
1. Warm up the engine by increasing the engine speed to 3,000 rpm for two fan cycles.
2. After the warm-up procedure is completed, let the car return to idle for 10 seconds.
3. After 10 seconds, slowly increase the engine speed up to 3500 rpm (this should take at least 20 seconds).
4. Once the engine speed reaches 3500 rpm, release the accelerator pedal and let the engine speed return to idle.
5. With the hood closed and inside the cabin, compare the audio file here to the noise heard.
•

If the noise is similar, continue to step 6.

•

If the noise is not similar, this bulletin does not apply. Continue with normal system troubleshooting.

6. Remove the cylinder head cover. See service information for additional instructions.
7. Compare the appearance of the camshaft lobes to the photo below.

•

If the camshafts appear similar to the no good photo, go to step 8.

•

If the camshafts appear similar to the good photo, this bulletin does not apply. Continue with normal system
troubleshooting.

8. Take a photo of the cam lobe, then follow the directions in the parts catalog when ordering the necessary parts.
NOTE
Please send photos of failed camshafts to PART_RELEASE@AHM.HONDA.COM to receive approval and release
parts.

Page 10 of 21

The following instructions are for replacement of the intake and exhaust camshafts and all rocker arm assemblies. This
is only if you have been approved by following the instructions in the parts catalog.
1. Relieve the fuel pressure and remove the high pressure fuel pump. Refer to the service information for additional
instructions.
2. Set the crankshaft to top dead center (TDC) for No. 1 cylinder. Refer to step 4 of the Camshaft Timing Inspection in
the service information.
3. Mark the timing chain at the punch marks on the exhaust and intake camshaft sprocket and VTC actuator as seen
below.

Page 11 of 21

4. Raise the vehicle on a lift.
5. Remove the right front wheel and the engine undercover.
6. Remove the cam chain auto-tensioner (chain case) cover.
7. Slightly rotate the crankshaft counterclockwise to compress the auto-tensioner. Line up the hole in the lock and
auto-tensioner, then insert a 1.2 mm diameter lock pin.

8. Rotate the crankshaft clockwise back to TDC on the No. 1 cylinder to secure the lock pin in place.
9. Remove the camshaft chain auto-tensioner with the lock pin inserted.

Page 12 of 21

10. Lower the vehicle.
11. Loosen the locknuts and adjusting screws.

Page 13 of 21

12. Remove the high pressure fuel pump base.

13. Remove the camshaft holder bolts, then remove the camshaft holders. To prevent damaging the camshafts, loosen
the bolts in sequence, two turns at a time.

Page 14 of 21

14. Lift up the cam chain, then carefully remove the intake camshaft followed by the exhaust camshaft.
NOTE
You must maintain tension on the cam chain while you do this.

15. Use a bungee cord to hold tension on the cam chain while you are replacing the camshafts.

16. When removing the camshaft holders, cam chain guide, and intake and exhaust camshaft, make sure to place them
in order of installation on a clean, padded workbench.

Page 15 of 21

17. Remove the rocker arm assembly, and install the new set. Refer to the service information for additional instructions.

Page 16 of 21

18. With the camshafts out of the engine, hold them with an open-end wrench and loosen the VTC actuator mounting
bolts on both camshafts.
19. Install the VTC actuators on the new camshafts.
NOTE
You may need an assistant to help you with this procedure.

20. Apply fresh engine oil to the new camshafts, and install.

Page 17 of 21

21. When installing the new camshafts, ensure the previously made marks on the VTC actuator and cam chain line up.

22. Install the camshaft holders and the cam chain guide, then torque them to specification.
23. Install the camshaft chain tensioner and release the lock pin.
24. Install the new cam chain auto-tensioner (chain case) cover.

25. To check the camshaft timing, rotate the crankshaft in the direction of engine rotation (clockwise) two full turns, then
stop at the TDC mark. Refer to step 4 of the Camshaft Timing Inspection in the service information.
26. Do a valve adjustment.

Page 18 of 21

27. Install the high pressure fuel pump base and new camshaft holder cover. Refer to step 07 of the installation section
of the Cylinder Head Removal and Installation (1.5L Engine) in the service information.

28. Install the cylinder head cover. Refer to the service information for additional instructions.
29. Install the high pressure fuel pump with the new o-ring and fuel joint pipe. Refer to the service information for
additional information.
30. Install the engine undercover and any other remaining parts.
31. During the first start up, check for DTCs set or abnormal noises. Refer to service information for additional
instructions.
32. Connect the i-HDS and click on the Body Electrical. From there, select HVAC and open Data List/Snapshot to
check if the A/C control unit has been replaced. One of three options will appear: Not Complete, Completed, or
Not Applicable.
•

If it reads Completed or Not Applicable, skip to step 34.

•

If it reads Not Complete, go to step 33.

Page 19 of 21

33. Replace the A/C control unit.
33.1. Remove the dashboard side lid and the dashboard undercover.

33.2. Remove the glove box.

Page 20 of 21

33.3. Remove the A/C control unit and replace with the new unit.

33.4. Run the self-diagnostics procedure with the i-HDS to make sure there are no problems in the system and
clear any HVAC system DTCs that might appear.
34. Reset maintenance minder main code A. Refer to the service information.
35. Drain and refill the engine oil (3.4 quarts). Do not replace the oil filter.
36. With the i-HDS, check to see if the PGM-FI and TCM software has been updated by using the J2534 rewrite
application.
•

If updated, the procedure is complete.

•

If not, continue with step 37.

37. Update the PGM-FI and TCM software using the i-HDS J2534 rewrite software with the MVCI or DST-i. Refer to
Service Bulletin 01-023, Updating Control Units/Modules.
NOTES
•

Connect a fully charged jumper battery and leave it connected during the entire procedure to maintain steady
voltage.

•

Never turn the ignition to OFF or ACCESSORY during the update. If there is a problem with the update, leave
the ignition turned to ON.

•

To prevent control unit damage, do not operate anything electrical (headlights, audio system, brakes, A/C power
windows, door locks, etc.) during the update.

•

Do not use the MongoosePro VCI tool.

38. Reset the throttle position learned values by referencing the throttle body removal and installation in the service
information, then do the PCM idle learn procedure. Refer to service information for additional instructions.
NOTE
For more information on the PCM idle learn procedure, see the Tech2Tech® video, "A Look at PCM Idle Learn".
END
Page 21 of 21