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Electrical


ECU

Honda ECU Definition Codes

OBD ID Market ECU Car/Engine notes
OBD1 A6 JDM P13-J00/J50 93-95 Prelude H22A (4 plug => ABS)
OBD1 A8 Oz DM P14-Q00 93-95 Prelude Si H23A 4WS
OBD1 A9 ? P12-A00 ?  
OBD2 K A61 Oz DM PLR-Q71 Civic 66q591 KS, PA, immo?
OBD1 B9 JDM P39-N50 92-95 Accord SOHC VTEC 66911
OBD1 C0 Oz DM P14-Q00 93-95 Prelude Si H23A  
OBD1 C1 ? P12-A00 ?  
OBD1 C2 USDM P13-A10/A11 92-95 H22A Prelude stock ROM
OBD1 D2 JDM PT6-J50 Accord  
OBD1 D5 Oz DM P0A-Q00/Q50 94-95 Accord Ex 66911
OBD1 D8 Oz DM P0C-Q00 Accord Exi F22B 66911
OBD1 E4 Oz DM P14-Q52 93-95 Prelude Si H23A  
OBD1 E6 JDM P13-N01 93-95 Prelude H22A  
OBD1 F6 Oz DM P39-N01 92-95 Accord SOHC VTEC 66911
OBD1 L3 Oz DM P0C-Q10 Accord Exi F22B 66911, immo
OBD1 S40 JDM P0F-902 Accord 95 CB5 H22a Hitachi
OBD0 10 JDM PK2-0133 Prelude 90-91  
OBD0 12 Oz DM PK2-6214 Prelude 88-89  
OBD0 27 Oz DM PK2-6220 Prelude 90-91  
OBD0 33 Oz DM PR4-Q51 88-89 Integra LS/GS B18a  
OBD0 45 JDM PM7-E04 CRX 88-89  
OBD0 50 JDM/EDM PM7-9040/0330 CRX Si 89-  
OBD0 51 JDM PK2 Prelude 90-91  
OBD0 54 Oz DM PR4-Q02 90-91 Integra LS/GS B18a  
OBD0 ?? USDM PR4-A02 90 Integra LS B18a  
OBD0 53 USDM PK2-6660 Prelude 90-91  
OBD0 58 JDM PR3-901 89-91 B16A EF8/9  
OBD0 59 JDM PR5-003 90-91 Integra ZXi (1.6 sohc)  
OBD0 65 USDM/CDM PM6-A09/C00 CRX 90-91  
OBD0 71 JDM PW0-000 CRX SiR 89-91  
OBD0 79 EDM Pm7-000 CRX 90-91  
OBD1 83 Oz DM PT3-Q50 Accord  
OBD0 92 Oz DM PR4-Q60 90-91 Integra LS/GS B18a  
OBD0 93 JDM PR3-J00/900 89-91 B16A DA6  
OBD1 97 Oz DM PT6-Q50 Accord  
OBD2 B 111 USDM P73-A04 ITR knock, immobilizer, PA sensor PCB: A3Y-B 001AC-L5002-00
OBD2 B 117 Oz DM PCX-??? ????  
OBD0 120 JDM PM7-Q020 CRX 88-89  
OBD0 121 EDM PM7-E020 CRX 88-89  
OBD1 202 JDM P29-900/000 Civic D16A ZC DOHC OBD1 ZC
OBD1 203 JDM P30-? Civic B16A DOHC Vtec common dev rom
OBD1 204 JDM P54-900 Domani B18B DOHC  
OBD1 205 JDM PR3-J01 92-93 Integra XSi B16A no inj test, no PA, yes knock
OBD1 206 JDM P08-020 D15B SOHC Vtec  
OBD1 208 EDM P28-G00/G50 Civic D16Z6 SOHC VTec  
OBD1 209 EDM P30-G00 Civic B16A2 DOHC Vtec no PA, no knock, no ELD
OBD1 210 ?      
OBD1 211 USDM P07 Civic VX D15Z1 Sohc Vtec-E 5wire o2, 02D011F0-1500 and 02D01720-1500 chipable, 02D01560-1500 not (yet)
OBD1 214 USDM P74 Integra B18  
OBD1 215 USDM P61 Integra B17A DOHC Vtec  
OBD0 216 USDM PM5/PM9 D15B DPFI only 90-91
OBD1 218 JDM P07-G01 Civic SOHC Vtec-E 1500 complement to "252" proc - Wideband?
OBD1 219 JDM PR3-J51 92-93 Integra XSi B16A no inj test, no PA, yes knock
OBD1 223 JDM P27-T50 SOHC  
OBD1 224 JDM P07-T50 SOHC Vtec-E  
OBD1 224 EDM? P29 DOHC D16A9 by ELF
OBD1 229 USDM P06 Civic DX D15B SOHC auto
OBD0 230 USDM PM5 Civic DX 66201 proc
OBD1 230 USDM P28-A00 D16Z6 SOHC manual, 66207 proc
OBD1 231 USDM P05 Civic CX D15B8 SOHC 1 wire O2 link
OBD1 232 USDM P75 Integra B18B GS DOHC (Also PR4)
OBD1 233 USDM PR4-A61 unknown car B18 non-vtec 5spd
OBD1 ??? USDM PR4-A11 Integra B18A GS DOHC B18 non-vtec 5spd
OBD1 235 Oz DM PR4-Q61 Integra B18A GS DOHC  
OBD1 236 Brazil P30-G00 EG6 B16A2 DOHC Vtec  
OBD1 237 JDM P08-001 D15B SOHC Vtec  
OBD1 238 EDM P04-G00 D15B2 SOHC  
OBD1 240 JDM P30-J00 Civic B16A DOHC Vtec (square ECU) Usually already ready for a chip
OBD1 243 JDM P08-010/911 D15B SOHC Vtec  
OBD1 244 Oz DM P29-Q01 Civic D16A ZC DOHC OBD1 ZC
OBD1 245 JDM P30-010 Civic B16A DOHC Vtec (square ECU) Not ready for a chip. You need to get the small Resistors and the small 74HC373 (good luck finding one)
OBD1 246 JDM P30-901 ECU B16 DOHC Vtec auto
OBD1 248 USDM P09-A00 Civic DX D15B7 SOHC  
OBD1 248 USDM P09-L00 Civic CX D15B8 SOHC 1 wire o2(same as P05)
OBD1 248 USDM P05-L01 Civic CX D15B7 SOHC 1 wire o2
OBD1 249 USDM P05 Civic D16B7 SOHC 1wire o2
OBD1 251 USDM P28-A51/L51 92-95 Civic EX D16Z6 SOHC Vtec auto
OBD1 252 JDM P07-G01 Civic SOHC Vtec-E 1500 (2nd CPU)
OBD1 253 JDM P91-900 Civic EJ1 Coupe D16Z SOHC Vtec  
OBD1 254 EDM P28-G01/G51 Civic SOHC D16Z6 Vtec  
OBD1 259 JDM P70-900 ZC Vtec AT
OBD1 262 JDM P07-900 Civic SOHC Vtec-E 1500 auto
OBD1 269 JDM P72-? Integra B18C4 DOHC Vtec  
OBD1 270 JDM P75-? Integra Integra B18B Esi DOHC  
OBD1 273 USDM P72-? Integra B18C1-3 DOHC Vtec  
OBD1 274 USDM P75-? Integra B18B LS DOHC  
OBD1 283 JDM P08-N01 D15B SOHC Vtec  
OBD1 300 USDM P05 Civic CX SOHC D15 (94-95)  
OBD2 A 301 USDM P2N-A31 96-98 Civic HX Second processor - 66201
OBD1 301 USDM/CDN P06-A02 Civic DX D15B7 SOHC  
OBD1 303 USDM P07 Civic VX D15Z1 SOHC Vtec  
OBD1 304 USDM P28-A01 92-95 Civic EX D16Z SOHC Vtec manual
OBD1 305 USDM P30-A02 Civic/Delsol B16A DOHC Vtec Manual
OBD1 306 JDM P08-N01 D15B SOHC vtec  
OBD1 309 JDM P91-901 92-95 Civic Coupe (sohc vtec 1.6)  
OBD1 312 JDM P30-901 Civic B16A DOHC Vtec Automatic  
OBD1 314 Oz DM P06-Q00/Q50 Civic D15B SOHC  
OBD1 315 Oz DM P28-Q50 Civic D16Z? SOHC Vtec  
OBD1 317 EDM P28-G02 Delsol D16Z6 SOHC Vtec '94
OBD1 318 JDM/Export P30G-? Civic B16A DOHC Vtec  
OBD2 A 320 Oz DM P2P-Q01 96-98 Civic Ex D16Y8 MT, 66507, board M1Y-C 014T-L5000-01 1st gen immo, KS, no PA
OBD1 321 EDM P29-T01 Civic 92-95 ZC engine Without O2
OBD1 327 US/JDM P28-? Civic D16Z SOHC Vtec auto w/datalogging
OBD2 A 328 Canada P2P-A31 Civic EX 96-98 66507, L5000-01, PA, no immo
OBD1 332 USDM P75-? Integra B18B GS DOHC  
OBD2 A 338 USDM P72-??? Integra B18C1 MT, 66507, ???
OBD2 A 339 JDM P72-013 Integra B18C MT, 66507, board M1Y-C 014T-L5000-01 KS, no PA
OBD2 A 340 USDM P75-??? Integra B18B ? ???
OBD2 A 341 Oz DM P75-Q02 Integra GS B18B MT, 66507, board M1Y-C 014T-L5000-01 no PA, no immo, no KS
OBD2 A 357 Oz DM P72-Q13 Integra B18C MT, 66507, board M1Y-C 014T-L5000-01 immo, KS, no PA
OBD2 A 359 JDM P73-003 ITR B18C5 MT, 66507, no immo, no PA, knock
OBD2 A 361 JDM P2T-J91 99-00 Civic Si B16A3 MT, 66507, board M1Y-C 014T-L5000-01 no PA, no immo, KS
OBD2 A 365 EDM P2T-G01 96-99 Euro Civic VTI EK4 MT, PCB Denshigiken : M1Y-C 0014T-L5000-11, no PA sensor, Knock module, Immo module
OBD2 A 388 Oz DM P2M-Q61 98 Civic D16Y AT, 66507 M1Y-C 014T-L5000-11 no PA, immo, KS
OBD2 A 409 USDM? ??? ??? ???
OBD2 A 422 USDM? P72 ??? ??? ???
OBD2? 471 USDM? ??? Civic HX? ?
OBD2? 474 USDM? ??? Integra ??? ???
OBD2? 475 USDM? P75??? Integra LS ??? ???
OBD2 A 484 Oz DM P2M-Q01 98 Civic D16Y MT, 66507 M1Y-C 014T-L5000-01 no PA, immo, KS
OBD2 A 493 USDM P2P-A33 96-98 Civic Ex D16Y8 MT, 66507, board M1Y-C 014T-L5000-01 Has provision for immobilizer but not present
OBD2? 497 USDM P73 ??? USDM ITR ??? ???
OBD2 A 498 EDM P3F-G01 CR-V 97-98 B20B4 MT,66507, board M1Y-C 014T-L5000-01 no PA, immo?, KS?
OBD2 K 505 Oz DM PRB-Q01 2001+ ITR DC5(aka RSX USA)  
OBD2 K 515 Oz DM PND-Q51 Integra 66592 PA
OBD2 A 526 Oz DM P5M-Q01/Q51 97-01 Prelude H22a MT/AT, 66p509, board E2Y-B 0014F-L5000-0, KS, immo, PA
OBD2 A 083 EDM P5M-G61 97-01 Prelude H22a AT, M66509 @ 31 MHz, board E2Y-B 0014F-L5000-0, KS, immo, PA
OBD2 A 527 Oz DM P5L-Q51 97-01 Prelude MT/AT, 66p509, board E2Y-B 0014F-L5000-0, immo, PA
OBD2 K 669 USDM PAA-A06 CRV ??? ??? 66Q592, immo?
OBD2 K 686 Oz DM PPA-Q53 CRV 2002 K24 66Q592 PA, immo?
OBD2 A 700 Oz DM P3F-Q01 ? MT, 66507, board M1Y-C 014T-L5000-01 no PA, immo, no KS
OBD2 A 711 USDM P2N-A31 96-98 Civic HX main processor - 66507 PCB: L1Y-D 0012B-L5001-00
OBD2 A 712 USDM P72-??? ? ???
OBD0 713 Oz DM PP4-Q510 88-89 Concerto AT
OBD2 A 713 JDM P73-023 ITR B18C5 MT, 66507, no immo, no PA
OBD2 A 714 USDM P73-??? ITR B18C5 MT, 66507, ..
OBD2 A 715 EDM P73-G01 ITR B18C6 MT, 66507, board M1Y-C 014T-L5000-01 no PA, immo, KS
OBD0 717 Oz DM PP4-Q020 88-89 Concerto  
OBD2 A 719 USDM P2P-A34 98 Civic D16Y8 66507, M1Y-C 0014T-L5000-21, PA, no immo
OBD0 721 EDM Pm7-000 CRX 89  
OBD2 A 796 Oz DM P73-Q01 ITR B18C7 MT, 66507, board M1Y-C 014T-L5000-01 no PA, immo, KS
OBD2 A 836 Oz DM PEA-Q50 Odessey 96 F22B KS, PA, 2nd gen immo
OBD2 B 858 JDM PCT-J11 97-01 Civic EK9 CTR KS, no PA, no immo
OBD2 B 866 Oz DM P2T-Q12 99-00 Civic Si B16A3 MT, 66589, board M2Y-D 0016Z-L5004-A0 2nd gen immo, KS, no PA
OBD2 B 933 USDM P2T-A11 99-00 Civic Si B16A3 MT, 66589, board M2Y-D 0016Z-L5004-A0 Provision for immobilizer?
OBD1 952 Oz DM P75-Q51 95 Integra B18A AT NEC B5J-D 2D190-1501
OBD1 ? USDM P28-L50 92-95 Civic D16Z6 SOHC Vtec AT, 66207, 02D01720-1500, California, actually P30 code (!)
? ? Oz DM P2K-Q01 96 Civic EK1 GLi SOHC non-VTEC (D16Y4) Manual, 'denshigiken' brand
OBD1 B4 JDM P51-900 92 Ascot Innova 2,3Si-Z H23A DOHC 66911
OBD1   JDM P30-900 91 EG9 Civic Ferio Sir B16A AT (155 hp 15,6 kg*m) This dump was in an external ROM of the stock P30-900 ECU.
OBD1   JDM P30-901 92 EG6 Civic Sir B16A AT (155 hp 15,6 kg*m) This dump was in an internal ROM of the stock P30-901 ECU. But Crome opens it as a P28 Based... This ECU doesn't have ELD.
OBD1   JDM P30-950 92 EG2 CRX Del-Sol Sir B16A MT (170 hp 16 kg*m) This dump was in an external ROM of the stock P30-950 ECU. You can upgrade your second generation B16A (CR is 10,4:1) with tables of this dump up to 170 hp and 16 kg*m.
OBD1   USDM P30-A10 94-95 Del-Sol B16A Automatic
Source: pgmfi.org - Share Alike License


OBD1

"OBD1" is generally used to refer to honda engine electronics from 92-95. Accords/Preludes used OBD1 connectors as early as 1990. This is not an official standard, unlike OBD2.

OBD1 ECUs (92-95)

P05 : 92-95 OBD-1 Civic CX (D15B)

P06 : 92-95 OBD-1 Civic DX (D15B)

P07 : 92-95 OBD-1 Civic VX (D15Z1)

P08 : 92-95 OBD-1 Civic/CRX VTi/VXi (sohc vtec)

PR3 : 92-93 OBD-1 JDM Integra RSi/XSi (B16A)

PR4 : 92-93 OBD-1 Integra RS/LS/GS (B18A)

P27 : 92-95 OBD-1 Euro/Asian Civic (non-vtec 1.6l)

P28 : 92-95 OBD-1 Civic Si/Ex (sohc vtec d16z6)

P29 : 92-95 OBD-1 JDM Domani (sohc zc)

P30 : 92-95 OBD-1 USDM Del Sol DOHC Vtec Si/EG SiR

P51 : 92-93 OBD-1 JDM Ascot Innova 2.3l Si-Z H23A CC-4 DOHC non-vtec

P54 : 92-95 OBD-1 JDM Domani/1.8l Accord (1.8L B18B DOHC)

P61 : 92-93 OBD-1 Integra GSR

P70 : 92-95 OBD-1 Domani (sohc vtec zc - no oil pressure sensor reading)

P71 : 92-95 OBD-1 Integra (sohc vtec d16a)

P72 : 94-95 OBD-1 Integra GSR

P74/75 : 94-95 OBD-1 Integra RS/LS/GS

P76: 94-95 OBD-1 JDM Integra (sohc zc)

P84 : 92-95 OBD-1 JDM Civic ETi (VTEC-E auto)

P91 : 92-95 OBD-1 JDM Civic Coupe (sohc vtec 1.6)

P11 : 92-95 OBD-1 Prelude 2.0i BB3 (F20A4 non-vtec)

P0 A : 94-95 OBD-1 Accord EX (F22B)

P0 C : 92-95 OBD-1 Accord 2.2L (??? F22B DOHC non-vtec)

P39 : 92-95 OBD-1 JDM Accord SOHC VTEC

P13 : 93-95 OBD-1 Prelude Vtec (H22A)

P14 : 93-95 OBD-1 Prelude Si (non Vtec - H23A)

PT3 : 90-93 OBD-1 Accord SOHC F22A non-vtec OBD-1

PK2 : 88-91 OBD-0 Prelude (B20A5 motor) OBD-0 Plugs

PK3 : 90-91 OBD-1 Prelude (B21a1 motor) OBD-1 Plugs

PR7 : 92-95 OBD-1 NSX C-series V6
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