Hardware pinouts information and cables schemes

OBD-2 ISO 9141-2 (14230-4, KWP2000) simple RS-232 cable schematic pinout

connector or cable wiring scheme

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Simple OBD-2 iso9141-2 RS-232 cable schema

Components:

R1-R10 - 560 ohm, 0.25W
T1     - BC556 or 2N3906
T2,T3  - BC546 or 2N3904


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Pinouts.ru > Cars and bikes interfaces >  Pinout of OBD-2 ISO 9141-2 (14230-4, KWP2000) simple RS-232 cable schematic and layout of 9 pin D-SUB female connector and 16 pin car OBD2 special connector
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Source(s) of this and additional information: hem.passagen.se/tomasf/obd2/ 1 reports
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