OBD PORT Current Limitation?

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Sep 7, 2014 | 10:10 PM

sanwal

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OBD PORT Current Limitation?

Can anybody tell me the supply current limit of the OBD port of the car?

Sep 7, 2014 | 10:14 PM

holmesnmanny

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Joined: Dec 2008

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Re: OBD PORT Current Limitation?

Just look at the fuse that supplies it.

Sep 7, 2014 | 10:23 PM

sanwal

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Re: OBD PORT Current Limitation?

No i am asking as a general perspective , i am developing OBD solutions device for which i need to know the current limitations of the OBD Port.

Sep 8, 2014 | 08:47 AM

veks

Honda-Tech Member

Joined: Dec 2004

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From: pasadena, ca

Re: OBD PORT Current Limitation?

For tuning or diagnostics use?

Sep 8, 2014 | 12:21 PM

HondaPartsHero

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Joined: May 2002

Posts: 9,875

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From: Charlotte, NC, 28227

Re: OBD PORT Current Limitation?

I suggest you try here pgmfi.org

Sep 9, 2014 | 10:26 PM

slowcivic2k

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Joined: Jul 2006

Posts: 2,817

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From: Kansas

Re: OBD PORT Current Limitation?

Most OBD-2 ports use an accessory fuse or cigar lighter fuse to power any added devices. 10A is the lowest I have seen. Anything pre-OBD (meaning OBD1 or OBD0) is schematic dependent.

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