Cars · Wiring

OBD2: On Board Diagnostics 2

OBD2 (On Board Diagnostics 2) is a US standard established in 1996 that specifies methods for accessing vehicle engine computers, emission controls, and related systems. Required on all North American vehicles since 1996.

Intermédio 2

Overview

OBD2 (On Board Diagnostics 2) is a standardized specification established in the United States in 1996 that defines methods for accessing vehicle engine computers, emission controls, and diagnostic parameters. Since the 1996 model year, all North American automobiles are required to provide an OBD data port for connection to diagnostic equipment.

The OBD2 port enables retrieval of emission-related diagnostic information and, in many cases, real-time vehicle operating parameters. In Europe, this standard was adapted as EOBD, with mandatory compliance required since 2001 for gasoline engines and 2003 for diesel engines.

Note

Honda ECUs from the European market (EDM) built between 1996 and 2000 utilized a 3-pin connector incompatible with OBD2 for communication with diagnostic equipment.

OBD2 ECU Models (1996–2001)

The following ECUs implement OBD2 compliance across Honda and Acura platforms:

ECU Model Model Years Vehicle Market
P72 1996–2000 Integra GSR USDM
P73 1996–2000 Integra Type-R JDM & USDM
P75 1996–2000 Integra LS/GS USDM
P2E 1996+ Civic LX Automatic (USDM)
P2N 1996+ Civic HX Coupe USDM
P2P 1996+ Civic EX Coupe USDM
P2T 1999+ Civic Si Coupe USDM
PCF 1999–2001 Accord Wagon JDM
P5P 1997–2000 Prelude Type-S JDM
P5M 1997–2000 Prelude EDM, Oz DM
P28-G03 1996+ Del Sol (SOHC VTEC) European

Aplica-se a

5 taxonomy links
Cars 5 links

Acura

1 link
Model Integra
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Honda

4 links
Model Accord
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Model Civic
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Model Integra
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Model Prelude
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