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How to build a Power Supply for BMW ICOM

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OBD 16pin to OBD 16pin Cable for BMW ICOM

OBD 16pin to OBD 16pin Cable for BMW ICOM   Item No. SP101-B4

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OBD 16pin to OBD 16pin Cable for BMW ICOM

Description

Best way “I” would build a power supply for icom bmw, buy OBDII Extention, Go to your local salvage place and buy BMW OBDII+20 Pin plug+wires(cut)
Then buy power plugs (male and female) from your local electric store and DIY your final product to this forum how much it cost you at the end

 

This is BMW ICOM A2 OBD+20pin cable

icom-a2-obdii20pin-connector

Icom 20pin to 16pin cable

 

 

icom-a2-16pin-to-20pin-cable

16pin J1962 obd2 car proprietary connector at bmw

icom-a2-16pin-connector

used in all BMW models produced after 2000’s

 

PIN Signal Description
pin 1 +12v ignition (in run or start)
pin 4 CGND chassis ground
pin 5 SGND signal ground
     
pin 7 ISO 9141-2 K-line engine (iso-914 ans iso-14230), automatic transmission diagnostic (in some models)
pin 8 ISO 9141-2 K-line ike/kombi, abs, abs/asr, abs/abd, esp, dsc, airbag and other diagnostic equipment
pin 9 TD/RPM engine rotation speed
pin 15 ISO 9141-2 K-line k-line of iso 9141-2 and iso 14230-4
pin 16 +12v battery power

 

Pinout status: +0 / -0

 

20pin car proprietary connector at the car side

icom-a2-20pin-connector

used in all BMW models in 1988-2000’s

PIN Signal Description
pin 1 engine rotation speed TD
pin 2 OBDII diagnostic  
pin 7 oil service and inspection reset  
pin 11 external starter turn on  
pin 14 battery power  
pin 15 ISO 9141-2 L line RXD- Diagnostic data link
pin 16 ignition +12v  
pin 17 USI 8141-2 k line n/c?
pin 18 PGSP Programming line  
pin 19 GND  
pin 20 ISO 9141-2 K line TXD- Diagnostic data link

 

Pinout status: +6 / -1

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