NHTSA ID Number: 10152435
Manufacturer Communication Number: A18-137
TSB/Document Date: 2019-01-05
Summary
"Service bulletin - Under certain circumstances, the vehicle may experience driveability issues which may result in DTCs P0300 (random misfire detected), P0301 (No. 1 cylinder misfire detected), P0302 (No. 2 cylinder misfire detected), P0303 (No. 3 cylinder misfire detected), P0304 (No. 4 cylinder misfire detected), or P0172 (fuel system too rich)."
PGM-FI
ANA750
37805-5AN-A750
TCU
CKA150
28101-5CK-A150
2017 Civic (LX 5-Door)
PGM-FI
ANL540
37805-5AN-L540
TCU
CKA040
28101-5CK-A040
PGM-FI
AN9540
37805-5AN-9540
TCU
CKA040
28101-5CK-A040
PGM-FI
ANB540
67805-5AN-B540
TCU
CKA040
28101-5CK-A040
PGM-FI
ANA150
37805-5AN-A150
2017 Civic (Sport 5-Door) (CVT) PGM-FI
ANA640
37805-5AN-A640
TCU
CKC040
28101-5CK-C040
PGM-FI
ANL640
37805-5AN-L640
TCU
CKC040
28101-5CK-C040
2017 Civic (Sport Touring 5Door)
PGM-FI
ANA850
37805-5AN-A850
TCU
CKC150
28101-5CK-C150
2018 Civic (Si 2-Door, 4-Door)
(M/T)
PGM-FI
AMA050
37805-5AM-A050
2018 Civic (EX 2-Door) (EX-T 4- PGM-FI
Door) (M/T)
AAA110
37805-5AA-A110
2018 Civic (EX 2-Door) (EX-T 4- PGM-FI
Door) (CVT)
TCU
AAA720
37805-5AA-A720
GCA820
28101-5CG-A820
2018 Civic (EX 2-Door) (EX-T 4- PGM-FI
Door)
TCU
AAL720
37805-5AA-L720
GCA820
28101-5CG-A820
PGM-FI
AAA820
37805-5AA-A820
TCU
GCA820
28101-5CG-A820
PGM-FI
AAL820
37805-5AA-L820
TCU
GCA820
28101-5CG-A820
2017 Civic (EX, EX-L 5-Door)
2017 Civic (EX, EX-L 5-Door)
2017 Civic (Sport 5-Door) (M/T)
2017 Civic (Sport 5-Door)
2018 Civic (Touring 2-Door)
(EX-T w/ Honda
Sensing 4Door)
2018 Civic (Touring 2-Door)
(EX-T w/ Honda
Sensing 4Door)
Page 5 of 10
Year/Model
Software
System
Program ID (or later)
Program P/N (or later)
2018 Civic (EX-A 4-Door)
PGM-FI
BAA510
37805-5BA-A510
TCU
GCA820
28101-5CG-A820
PGM-FI
BAL410
37805-5BA-L410
TCU
GCA820
28101-5CG-A820
2018 Civic (EX w/ Honda![]()
Sensing 4-Door)
PGM-FI
AJA620
37805-5AJ-A620
TCU
GCA820
28101-5CG-A820
2018 Civic (EX w/ Honda![]()
Sensing 4-Door)
PGM-FI
AJL620
37805-5AJ-L620
TCU
GCA820
28101-5CG-A820
2018 Civic (EX Navigation 4Door)
PGM-FI
AJA520
37805-5AJ-A520
TCU
GCA820
28101-5CG-A820
2018 Civic (EX Navigation 4Door)
PGM-FI
AJL520
37805-5AJ-L520
TCU
GCA820
28101-5CG-A820
2018 Civic (LX 5-Door) (M/T)
PGM-FI
ANA040
37805-5AN-A040
2018 Civic (LX 5-Door) (CVT)
PGM-FI
ANA540
37805-5AN-A540
TCU
CKA040
28101-5CK-A040
PGM-FI
ANL540
37805-5AN-L540
TCU
CKA040
28101-5CK-A040
2018 Civic (LX w/ Honda![]()
Sensing 5-Door)
PGM-FI
ANA750
37805-5AN-A750
TCU
CKA150
28101-5CK-A150
2018 Civic (LX w/ Honda![]()
Sensing 5-Door)
PGM-FI
ANL750
37805-5AN-L750
TCU
CKA150
28101-5CK-A150
2018 Civic (EX, EX-L 5-Door)
PGM-FI
AN9540
37805-5AN-9540
TCU
CKA040
28101-5CK-A040
PGM-FI
ANB540
37805-5AN-B540
TCU
CKA040
28101-5CK-A040
2018 Civic (EX w/ Honda![]()
Sensing 5-Door)
PGM-FI
ANA950
37805-5AN-A950
TCU
CKA150
28101-5CK-A150
2018 Civic (EX w/ Honda![]()
Sensing 5-Door)
PGM-FI
ANA950
37805-5AN-L950
TCU
CKA150
28101-5CK-A150
2018 Civic (Sport 5-Door) (M/T)
PGM-FI
ANA150
37805-5AN-A150
2018 Civic (EX-A 4-Door)
2018 Civic (LX 5-Door)
2018 Civic (EX, EX-L 5-Door)
Page 6 of 10
Year/Model
Software
System
Program ID (or later)
Program P/N (or later)
ANA640
37805-5AN-A640
TCU
CKC040
28101-5CK-C040
PGM-FI
ANL640
37805-5AN-L640
TCU
CKC040
28101-5CK-C040
2018 Civic (Sport Touring 5Door)
PGM-FI
ANA950
37805-5AN-A950
TCU
CKC150
28101-5CK-C150
2018 Civic (Sport Touring 5Door)
PGM-FI
ANL850
37805-5AN-L850
TCU
CKC150
28101-5CK-C150
2018 Civic (Sport 5-Door) (CVT) PGM-FI
2018 Civic (Sport 5-Door)
Page 7 of 10
REPAIR PROCEDURE
1. Reset the maintenance minder.
2. Drain and refill the engine oil. 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 dash side lid and the undercover.
Page 8 of 10
4.2. Remove the glove box.
4.3. Remove and replace the A/C control unit.
4.4. Install all parts in the reverse order of removal.
4.5. Run the HVAC self-diagnostics procedure with the i-HDS to make sure there are no problems in the system.
Page 9 of 10
5. Use the i-HDS to update the PGM-FI and TCU software.
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 see then do the PCM idle learn procedure. Refer to the service information
for additional instructions.
NOTE
For more information on the PCM idle learn procedure, see Tech2Tech video, "A Look at PCM Idle Learn".
END
Page 10 of 10
- Restores fuel economy
- Stabilizes ethanol
- Maximizes horsepower
- Improves responsiveness
- For use in both gasoline and diesel engines
- DESIGNED TO EXCEED EXPECTATIONS: Red Line complete SI-1 fuel...
- PERFORM AND PROTECT: Fuel additive cleans injectors...
- EFFICIENT FUEL BURN: Gas treatment that enhances gasoline...
- EASY TO USE: Use one bottle per tank for most effective...
- 15 Ounce (2 Pack)
Last update on 2026-06-21 / Affiliate links / Images from Amazon Product Advertising API
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TSB/Document ID: A18-137
Replacement Service Bulletin Number:
MFR Communication Date: 2018-12-21
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM:SOFTWARE
MFR Component System:
MFR Component Subsystem:
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