37805-5AA-A82

TCU

GCA820

28101-5GC-A82

PGM-FI

AAL820

37805-5AA-L82

TCU

GCA820

28101-5GC-A82

PGM-FI

BAA510

37805-5BA-A51

TCU

GCA820

28101-5GC-A82

2018 Civic (EX 2-Door) (EX-T 4-Door)

KL

2018 Civic (Touring 2-Door) (EX-T
w/ Honda Sensing 4-Door)

KA

2018 Civic (Touring 2-Door) (EX-T
w/ Honda Sensing 4-Door)

KL

2018 Civic (EX-A with CVT 4-Door)

KA

Page 8 of 21

Year/Model

Emission
Code

Software
System

Program ID (or
later)

Program P/N (or
later)

2018 Civic (EX-A with CVT 4-Door)

KL

PGM-FI

BAL410

37805-5BA-L41

TCU

GCA820

28101-5GC-A82

2018 Civic (EX w/ Honda Sensing with CVT KA
4-Door)

PGM-FI

AJA620

37805-5AJ-A62

TCU

GCA820

28101-5GC-A82

2018 Civic (EX w/ Honda Sensing with CVT KL
4-Door)

PGM-FI

AJL620

37805-5AJ-L62

TCU

GCA820

28101-5GC-A82

2018 Civic (EX Navigation with CVT
4-Door)

KA

PGM-FI

AJA520

37805-5AJ-A52

TCU

GCA820

28101-5GC-A82

2018 Civic (EX Navigation with CVT
4-Door)

KL

PGM-FI

AJL520

37805-5AJ-L52

TCU

GCA820

28101-5GC-A82

2018 Civic (LX with M/T 5-Door)

KA

PGM-FI

ANA040

37805-5AN-A04

2018 Civic (LX with CVT 5-Door)

KA

PGM-FI

ANA540

37805-5AN-A54

TCU

CKA040

28101-5CK-A04

PGM-FI

ANL540

37805-5AN-L54

TCU

CKA040

28101-5CK-A04

PGM-FI

ANA750

37805-5AN-A75

TCU

CKA150

28101-5CK-A15

PGM-FI

ANL750

37805-5AN-L75

TCU

CKA150

28101-5CK-A15

PGM-FI

AN9540

37805-5AN-954

TCU

CKA040

28101-5CK-A04

PGM-FI

ANB540

37805-5AN-B54

TCU

CKA040

28101-5CK-A04

PGM-FI

ANA950

37805-5AN-A95

TCU

CKA150

28101-5CK-A15

PGM-FI

ANL950

37805-5AN-L95

TCU

CKA150

28101-5CK-A15

2018 Civic (LX with CVT 5-Door)

2018 Civic (LX w/ Honda Sensing 5-Door)

2018 Civic (LX w/ Honda Sensing 5-Door)

2018 Civic (EX, EX-L 5-Door)

2018 Civic (EX, EX-L 5-Door)

2018 Civic (EX w/ Honda Sensing 5-Door)

2018 Civic (EX w/ Honda Sensing 5-Door)

KL

KA

KL

KA

KL

KA

KL

2018 Civic (Sport with M/T 5-Door)

KA

PGM-FI

ANA150

37805-5AN-A15

2018 Civic (Sport with CVT 5-Door)

KA

PGM-FI

ANA640

37805-5AN-A64

TCU

CKC040

28101-5CK-C04
Page 9 of 21

Year/Model

Emission
Code

Software
System

Program ID (or
later)

Program P/N (or
later)

2018 Civic (Sport with CVT 5-Door)

KL

PGM-FI

ANL640

37805-5AN-L64

TCU

CKC040

28101-5CK-C04

PGM-FI

ANA850

37805-5AN-A95

TCU

CKC150

28101-5CK-C15

PGM-FI

ANL850

37805-5AN-L85

TCU

CKC150

28101-5CK-C15

2018 Civic (Sport Touring with CVT 5-Door) KA

2018 Civic (Sport Touring with CVT 5-Door) KL

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. Do not replace the oil filter. (3.4 quarts)
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 climate control unit.
4.1. Remove the climate control unit and replace with the new unit. See service information for additional
instructions.
4.2. Install all parts in reverse order.
4.3. Run the self-diagnostics procedure with the i-HDS to make sure there are no problems in the system.
5. With the i-HDS, check to see if the PGM-FI and TCU software has been updated by using the J2534 rewrite
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.
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 10 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.

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.

Page 11 of 21

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.

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 12 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.

Page 13 of 21

9. Remove the camshaft chain auto-tensioner with the lock pin inserted.

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

Page 14 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 15 of 21

14. Lift up the cam chain, then carefully remove the intake camshaft followed by the exhaust camshaft. 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 16 of 21

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

Page 17 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 18 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 19 of 21

27. Install the high pressure fuel pump base and new camshaft holder cover. Refer to step 6 of the installation section of
the Camshaft and VTC Actuator Removal, Installation, and Inspection (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.

33. Replace the climate control unit.
33.1. Remove the climate control unit and replace with the new unit. See service information for additional
instructions.
33.2. Install all parts in reverse order.
33.3. Run the self-diagnostics procedure with the i-HDS to make sure there are no problems in the system.
34. Reset maintenance minder main code A. Refer to the service information.
35. Drain and refill the engine oil. Do not replace the oil filter. (3.4 quarts)
36. With the i-HDS, check to see if the PGM-FI and TCU software has been updated by using the J2534 rewrite
application.
•

If not, continue with the procedure.

•

If updated, skip to step 38.

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.
Page 20 of 21

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