SB-10043939-8020

Service Bulletin
Applies To:

12-027
April 25, 2012

See VEHICLES AFFECTED

Engine Stalls During Cold Start
SYMPTOM
If the accelerator pedal is pressed during a cold start,
the engine may start, then stall.

WARRANTY CLAIM INFORMATION
Operation Number: 125517
Flat Rate Time:

0.2 hour

PROBABLE CAUSE
The PCM misinterprets the amount of fuel needed to
start the engine, which causes it to stall.

Failed Part:

37820-R1Y-L55

Defect Code:

03214

Symptom Code:

09303

Skill Level:

Repair Technician

VEHICLES AFFECTED
2012 Civic 2-door M/T:
From VIN 2HGFG3A..CH500001 thru
2HGFG3A..CH541694
2012 Civic 2-door A/T:
From VIN 2HGFG3B..CH500001 thru
2HGFG3B..CH541795
2012 Civic 4-door M/T:
All VINs starting with JHM
From VIN 2HGFB2E..CH500001 thru
2HGFB2E..CH559766
From VIN 19XFB2E..CE000001 thru
19XFB2E..CE059576
2012 Civic 4-Door A/T:
All VINs starting with JHM
From VIN 2HGFB2F..CH500001 thru
2HGFB2F..CH559400
From VIN 19XFB2F..CE000001 thru
19XFB2F..CE059017
From VIN 19XFB2F..CE300001 thru
19XFB2F..CE349793
2012 Civic Si 2-door:
From VIN 2HGFG4A..CH700001 thru
2HGFG4A..CH702956
2012 Civic Si 4-door:
From VIN 2HGFB6E..CH700001 thru
2HGFB6E..CH703424
CORRECTIVE ACTION
Update the PGM-FI software.

© 2012 American Honda Motor Co., Inc. – All Rights Reserved

SOFTWARE INFORMATION
NOTE: Unnecessary or incorrect repairs resulting from
a failure to update the HDS or MVCI are not covered
under warranty.
MVCI Control Module (CM) Update:
Application Version V2.16.04 or later
Database update 22-FEB-2012 or later
HDS Software Version:
3.002.033 or later
Before beginning the repair, make sure that both
the HDS and MVCI are updated as listed above.
Do only the update listed in this service bulletin.
Check that the MVCI indicates the applicable program
ID listed below (or a later program ID) as the
Recommended Update when the update begins.
If the MVCI displays This vehicle does not need an
update at this time during the update, the software for
this service bulletin is already installed.
For more information about updating the HDS, the
MVCI, and vehicle systems, refer to Service Bulletin
01-023, Updating Control Units/Modules.
Year/Model

2012 Civic MT - KA

Program ID
(or later)

Program P/N
(or later)

1AA050

37805-R1A-A05

2012 Civic AT - KA

1AA550

37805-R1A-A55

2012 Civic HF AT - KA

1AA630

37805-R1A-A63

2012 Civic AT - KL,
with Bosch fuel pump

1YL560

37805-R1Y-L56

2012 Civic AT - KL,
with Denso fuel pump

1YL730

37805-R1Y-L73

2012 Civic HF AT - KL,
with Bosch fuel pump

1YL830

37805-R1Y-L83

2012 Civic HF AT - KL,
with Denso fuel pump

1YL920

37805-R1Y-L92

2012 Civic Si

X0A040

37805-RX0-A04

ATB 47834 (1204)

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CUSTOMER INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment,
and training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume
this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an
authorized Honda automobile dealer.

REPAIR PROCEDURE
Update the PGM-FI software. Refer to Service Bulletin 01-023, Updating Control Units/Modules.
NOTE: You may be able to use the Engine Stall 2* on-board snapshot to confirm if the accelerator pedal was
pressed during engine cranking. If the snapshot captures the beginning of the engine start before the stall, you
will see these indicators:
• The APP sensor voltage rise
• The engine starts, followed by the engine speed (RPM) slowing
• The engine stalls

* For more information about Engine Stall 2, refer to the ServiceNews article titled, “Troubleshooting a Stalling
Engine? Take Some On-Board Snapshots!”

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12-027