Honda compatible OBD2 and ELM327

Several thousand OBD2-compatible vehicles have been tested by our customers with klavkarr. You can read their feedback on this page. Check that the klavkarr diagnostic scanner will work with your car.

Select the make of your car

Our registered users have enabled us to create this table, and we thank them. It contains 11473 vehicles tested including 3905 of different types or configuration.

We remind you that the EOBD standard is governed by legislation that states that vehicles must be compatible from a specific date. More information on presentation of the OBD.

To easily diagnose your own car, download our EOBD-Facile car diagnostic software..

All GASOLINE vehicle since 2001and DIESEL vehicle since 2004 are COMPATIBLE even if they are not in the list.

Find a vehicle make rapidly by using the search function in your web browser (CTRL + F) and for more details about the meaning of modes, check out our page OBD modes & PID.

Make(1)	Engine	AM	Fuel	P(2)	Compatible OBD2 ?
Honda Accord
Where is the OBD2 port on Honda Accord 7 (2003 - 2008) ?
Accord (x5)	2.2 i-CDTI	2004 2005 2006	Diesel	140	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 983B0011 A0180000 583B0001 20180000 Non Non Non Non
Accord	2.0	2003	Essence	140	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EA811 80001001 08000000 7E3E8001 00000001 08000000 00000001 00000001 00000000 00000181 00000001 00000001 0001C001 00000000 Non 3C000000
Accord (x2)	2.0 iES	1998 1999	Essence	147	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB810 7E3A8000 00000001 00008001 00000001 00000001 B0000000 84040180 Oui Non
Accord	2.0 SE	2003	Essence	150	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EA811 80001001 08000000 7E3E8001 00000001 08000000 00000001 00000001 00000080 20000181 00000001 00000001 0001C001 00000000 Non 3C000000
Accord	2.2 i-DTEC	2011	Diesel	150	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb 983B8011 A0180001 0A100000 583B8001 20180001 0A100000 Non 80000001 00008001 80000001 00000001 08000001 78004000 Oui 10000000
Accord	2.0	2011	Essence	155	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 801DB011 7AD00000 Non Non Non Oui 54000000
Accord	2.2 I-DTEC	2013	Diesel	180	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb 983B8011 A0180001 0A100000 583B8001 20180001 0A100000 Non 80000001 00008001 80000001 00000001 08000001 78004000 Oui 10000000
Accord (x5)	2.4	2003 2006 2007	Essence	190	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EA811 80001001 08000000 7E3E8001 00000001 08000000 00000001 00008001 00000007 00000001 040C0100 00000181 00000001 00000001 4001C000 Non 3C000000
Honda CR-V
Where is the OBD2 port on Honda CR-V (2002 - 2006) ?
CR-V	2.0	2003	Essence	134	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 983EA000 583A8000 Non Non Non Non
CR-V (x3)	2.2 CDTI	2005 2006 2007	Diesel	140	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 983B0011 A0180000 583B0001 20180000 Non Non Non 30000000
CR-V (x2)	2.2 CTDi	2007 2008	Diesel	140	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb 983B0011 A0180000 583B0001 20180000 Non Non Oui 10000000
CR-V	2.0 i-vtec	2013	Essence	155	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 801DB011 7AD08000 7E3F8003 001C2001 7AD08000 Non C0000001 80008001 00000001 00000001 00000001 78000000 Oui 15400000
Honda CR-Z
Where is the OBD2 port on Honda CR-Z (2010 - 2016) ?
CR-Z (x2)	1.5	2010	Hybride Essence	124	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 801DB011 7AD00000 7E3F8003 001C2001 7AD00000 Non C0000001 80008001 00000001 00000001 00000001 78000000 Oui 14400000
Honda City
Where is the OBD2 port on Honda City (2008 - 2014) ?
City	1.3L	2014	Essence	80	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BC3FA803 8005B001 7AD00000 Non Non Non Oui Non
Honda Civic
Where is the OBD2 port on Honda Civic 8 (2006 - 2011) ?
Civic (x2)	1.4 I-DSI	2006 2008	Essence	83	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 801DB011 7AD00000 7E3F8003 001C2001 7AD00000 Non C0000001 80008001 00000001 00000001 80000001 78000000 Oui 14000000
Civic (x5)	1.4 IS	1999 2000 2001	Essence	90	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB810 7E3A8000 00000001 00000001 00000001 00000001 00000000 00010100 Non Non
Civic	1.6	1998	Essence	100	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB810 7E3A8000 00000001 00010000 04018181 80040000 Non Non
Civic (x3)	1.7 CTDI	2002 2004	Diesel	100	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 983B8011 A0000000 583B8001 20000000 Non 00000000 Oui 30000000
Civic	1.4 Ivtec	2013	Essence	100	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 801DB011 7AD00000 7E3F8003 001C2001 7AD00000 Non C0000001 80008001 00000001 00000001 00000001 78000000 Oui 15400000
Civic	1.7 mfi	2003	Essence	115	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB811 00000000 7E3A8000 00000001 00010001 00000001 00000001 00000000 00000001 00000001 08000000 04018181 80040045 01000010 Non 3C000000
Civic (x2)	1.6 iDTec	2013	Diesel	120	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb 983B8011 A0180001 0AD00000 583B8001 20180001 0AD00000 Non 80000001 00008001 80000001 00000001 08000001 00004000 Oui 54600000
Civic (x5)	1.8	2009 2010 2013	Essence	140	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 801DB011 7AD00000 7E3F8003 001C2001 7AD00000 Non C0000001 80008001 00000001 00000001 80000001 78000000 Oui 14000000
Civic (x3)	1.8 VTCE	2006 2008 2009	Essence	140	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 801FF011 FAD00000 7E3F8003 001E2001 7AD00000 Non C0000001 800080D9 00000001 00000001 80000001 78000000 Oui 55000000
Civic (x13)	2.2 i-CtdI	2006 2007 2008 2009 2010	Diesel	140	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb 983B0011 A0180000 583B0001 20180000 Non Non Oui 10000000
Civic	2.2	2012	Diesel	150	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb 983BA013 B019A011 4AD20000 583B8003 20182001 4AD00000 Non 80000001 00008001 80000001 00000001 08000001 78004000 Oui 54600000
Civic (x3)	2.0 16V	2002 2005	Essence	200	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB811 80000000 7E3A8000 00000001 00010001 00000001 00000001 00000000 04018180 Non 30000000
Honda Civic Type-R
Civic Type-R	2.0	2003	Essence	200	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB000 7E3A8000 Non Non Non Non
Honda Element
Element (x5)	2.4	2004 2005 2006	Essence	160	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EA811 80001001 08000000 7E3E8001 00000001 08000000 00000001 00000001 00000080 00000181 00000001 01040001 0001C001 C0200000 Oui 3C000000
Honda FR-V
Where is the OBD2 port on Honda FR-V (2004 - 2009) ?
FR-V	1.7 Vtec	2006	Essence	125	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB811 80000000 7E3E8000 00000001 00010001 00000001 00000001 00000000 84000000 Non 3C000000
FR-V (x3)	2.2 CDTI	2006 2007	Diesel	140	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 983B0011 A0180000 583B0001 20180000 Non Non Non 30000000
FR-V	2.0 Vtec	2005	Essence	150	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EA811 80001001 08000000 7E3E8001 00000001 08000000 00000001 00000001 00000080 00000181 00000001 00000001 4001C000 Non 3C000000
Honda Fit
Where is the OBD2 port on Honda Fit (2002 - 2008) ?
Fit	1.2	2003	Essence	65	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB810 7E3A8000 00000001 00010001 00000001 00000001 00000000 00000001 00000001 08000000 84018180 Non Non
Fit	1.3	2007	Essence	110	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3EA813 801FF011 FAD00000 7E3E8003 001E2001 7AD00000 Non C0000001 800080D9 00000001 00000001 80000001 78000000 Oui 55000000
Honda Fit II
Where is the OBD2 port on Honda Fit II (2007 - 2014) ?
Fit II	1.5	2010	Essence	117	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 8005B011 7AD00000 7E3F8003 00042001 7AD00000 Non C0000001 80000001 00000001 00000001 00000001 78000000 Oui 14000000
Honda HR-V
Where is the OBD2 port on Honda HR-V (1999 - 2006) ?
HR-V (x2)	1.6	2000 2004		105	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB010 7E3A8000 Non Non Non Non
HR-V	1.6	2001	Essence	124	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB810 7E3A8000 00000001 00010001 00000001 00000001 00000000 04018180 Non Non
Honda HR-V II
Where is the OBD2 port on Honda HR-V (2014 - 2018) ?
HR-V II	1.5 i-VTEC	2016	Essence	130	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 A01DB011 7AD08000 7E3F8003 201C2001 7AD08000 Non C0000001 Oui 55400000
Honda Insight
Where is the OBD2 port on Honda Insight (2009 - 2014) ?
Insight	1.3 i-VTEC	2010	Essence	88	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA811 801DB011 7AD00000 7E3F8003 001C2001 7AD00000 Non C0000001 80008001 00000001 00000001 00000001 78000000 Oui 14000000
Honda Integra
Integra	2.0	2002	Essence	220	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB800 7E3A8000 Non Non Non Non
Honda Jazz 1
Where is the OBD2 port on Honda Jazz (2001 - 2008) ?
Jazz 1	1.2	2003	Essence	65	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB810 7E3A8000 00000001 00010001 00000001 00000001 00000000 00000001 00000001 08000000 84018180 Non Non
Jazz 1 (x3)	1.2	2002 2003	Essence	78	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB810 7E3A8000 Non 84018180 Non Non
Jazz 1 (x3)	1.4 i-dsi	2005 2006 2007	Essence	83	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB811 80000000 7E380000 C3800001 00004000 00000001 00000001 00000001 80000001 00000001 80000000 Oui 30000000
Honda Jazz 2
Where is the OBD2 port on Honda Jazz (2007 - 2014) ?
Jazz 2 (x2)	1.2 i-VTEC	2012 2014	Essence	90	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 801DB011 7AD00000 7E3F8003 001C2001 7AD00000 Non C0000001 80008001 00000001 00000001 00000001 78000000 Oui 14000000
Jazz 2 (x2)	1.3 i-VTEC	2009 2013	Essence	98	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 801DB011 7AD00000 7E3F8003 001C2001 7AD00000 Non C0000001 80008001 00000001 00000001 00000001 78000000 Oui 14000000
Jazz 2	1.4 i-VTEC	2009	Essence	99	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 801DB011 7AD00000 7E3F8003 001C2001 7AD00000 Non C0000001 80008001 00000001 00000001 00000001 78000000 Oui 14000000
Jazz 2	1.5 i-VTEC	2014	Essence	117	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BC3FA803 8005B001 7AD00000 7C3F8003 00042001 7AD00000 Non C0000001 00000001 00000001 00000001 00000001 00000000 Oui 14000000
Honda Jazz 3
Where is the OBD2 port on Honda Jazz (2015 - 2020) ?
Jazz 3	1.3 i-VTEC	2016	Essence	102	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA813 801DB011 7AD08000 7E3F8003 001C2001 7AD08000 Non C0000001 80008801 00000001 00000001 00000001 78000000 Oui 55400000
Honda Legend
Where is the OBD2 port on Honda Legend (1996 - 2004) ?
Legend	3.5 VTEC	2006	Essence	295	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BFBEA891 80001101 08000000 7FBE8001 00000001 08000000 00000001 00000001 00000201 00000001 040E0000 20000001 00000001 00C00001 50000601 00000001 00000000 Non 3C000000
Honda Mobilio
Mobilio	1.5	2016	Diesel	90	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb 983B0011 A0180001 00C00000 583B0001 20180001 00C00000 Non Non Oui 50400000
Honda Odyssey
Odyssey	3.1	2001	Essence	150	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB810 7E3A8000 00000001 00000001 00000000 80018101 80080001 00000000 Oui 30000000
Odyssey	2.3ltr	2002	Essence	190	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB000 7E3A8000 Non Non Non Non
Odyssey	3.5L V6	2011	Essence	248	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BFBFA893 801FF119 FAD00000 7FBF8003 001E2001 7AD00000 Non CC000001 C0008059 00000001 00000001 00000001 7E000000 Non 55400000
Honda Pilot
Where is the OBD2 port on Honda Pilot (2002 - 2008) ?
Pilot	3.5 V6	2003	Essence	250	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EB810 7E3A8000 00000001 00000001 08000000 88018181 80040001 00000018 Non 30000000
Honda Pilot II
Pilot II	3.5 V6 J35Z4	2011	Essence	250	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BFBFA893 801FF119 FAD00000 7FBF8003 001E2001 7AD00000 Non CC000001 C0008059 00000001 00000001 00000001 7E000000 Non 55400000
Honda Ridgeline I
Ridgeline I (x3)	3.5 V6 J35A9	2006 2007	Essence	250	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BFBEA891 80001101 80000000 7FBE8001 00000001 80000000 Oui 20000001 00000001 00A00001 500006C1 C0000001 00014800 Oui FF000000
Honda S2000
Where is the OBD2 port on Honda S2000 (1999 - 2009) ?
S2000 (x7)	2.0 dohc 16s	2000 2002 2003 2004	Essence	240	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 ISO 9141 BE3EF810 7E3A8000 00000001 00010001 00000001 00000001 00000000 04018180 Non Non
S2000 (x2)	2.2	2006 2008	Essence	240	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3EA813 8007F011 FAD00000 7E3E8003 00062001 7AD00000 Non C0000001 800000D9 00000001 00000001 80000001 78000000 Oui 55000000
Honda Stream
Where is the OBD2 port on Honda Stream (2000 - 2006) ?
Stream	1.7	2006	Essence	125	Go to the compatible scanner
+ More info
Protocol Mode 1 Mode 2 Mode 5(3) Mode 6 Mode 7 Mode 9 CAN 29bit 500kb BE3FA803 801D9001 7AD00000 7E3F8003 001C0001 7AD00000 Non Non Oui Non
Go to the car scanner for HONDA

(1) - The digits between brackets (x3) correspond to the number of vehicles of the same type tested
(2) - Power in DIN horsepower (multiplied by 0.736 for the power in kW)
(3) - PID only supported for the main oxygen sensor (no.1)
Mode X column: A vehicle showing 00000000 on a mode means that no corresponding PID is active and that as a result the mode is supported but will not reply to any requests. None of the vehicles described below support mode 8.

If your vehicle is not in the table below, go to the next site also containing a list of vehicles tested. Note, the interface and protocol used as not all are supported by an ELM type interface. http://www.blafusel.de/obd/obd2_scanned.php

Interpreting table data

The tables on this page represent lists of vehicles that are compatible with the OBD standard (EOBD or OBD2 depending on the country). Compatible vehicles can be diagnosed using generic (multibrand) ELM327 interfaces.

Table utility

There are several uses:

• While the official dates for implementing the standard have been defined, manufacturers have implemented the standard more or less early. (See the official dates). The list can be used (if your vehicle is on it), to know in advance if you can buy an ELM interface and whether it will work with your vehicle.
• The second piece of useful information is the "level" of implementation of the standard. In general, the more recent your vehicle, the more diagnoses you can do on it. The tables list the support modes and their parameters.

How was this list written?

We asked the users of our EOBD-Facile software to help create this list by returning their "log" file of the connection to their vehicle. In exchange for this contribution, the software functions are available for free. The exact procedure is explained on the EOBD-Facile software page.

Understanding sets of figures in the tables

To understand these figures, corresponding to the parameters (PID), we have included a small program free of charge in our software. It is available from the file menu and PID Decoder