Wiring diagram symbols

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bellaireroad

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Is there a symbol sheet, or a tutorial on reading OEM wiriing diagrams? For example, I circled some of the things I couldnt interpret, and I am assuming the green line is where the bed harness attaches to the cab harness?

thanks

39d634d2-b3ce-4998-a4d7-09ef05994460.png
 

chrisbh17

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First green circle - A904 is the circuit and circuit level (Im not sure what they mean by level). 10 is the gauge of wire. RD = red (color of wire)

Second green circle - 3 in the square means pin 3 of the connector. C2/B is the connector in the module itself (so BCM connector C2/B..pic attached so you can put it all together)

Third green circle - P235 is the circuit and circuit level again, 0.75 represents the wire gauge (NOTE: Im not sure what the decimal gauges mean, anyone that can answer I would appreciate it as well!), GN/BG = Green / Beige = wire color

You are correct about the line....there is an "inline connector" named Body/Chassis, the lock and unlock drivers from the BCM connect to pins 21 and 20 on the inline connector.

upload_2019-8-17_19-47-15.png

upload_2019-8-17_19-50-41.png
 
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bellaireroad

bellaireroad

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First green circle - A904 is the circuit and circuit level (Im not sure what they mean by level). 10 is the gauge of wire. RD = red (color of wire)

Second green circle - 3 in the square means pin 3 of the connector. C2/B is the connector in the module itself (so BCM connector C2/B..pic attached so you can put it all together)

Third green circle - P235 is the circuit and circuit level again, 0.75 represents the wire gauge (NOTE: Im not sure what the decimal gauges mean, anyone that can answer I would appreciate it as well!), GN/BG = Green / Beige = wire color

You are correct about the line....there is an "inline connector" named Body/Chassis, the lock and unlock drivers from the BCM connect to pins 21 and 20 on the inline connector.

View attachment 176996

View attachment 176997

Thanks, starting to become more clear.... where can the actual line drawings of the circuits be found? Thanks


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Jimmy07

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First green circle - A904 is the circuit and circuit level (Im not sure what they mean by level). 10 is the gauge of wire. RD = red (color of wire)

Second green circle - 3 in the square means pin 3 of the connector. C2/B is the connector in the module itself (so BCM connector C2/B..pic attached so you can put it all together)

Third green circle - P235 is the circuit and circuit level again, 0.75 represents the wire gauge (NOTE: Im not sure what the decimal gauges mean, anyone that can answer I would appreciate it as well!), GN/BG = Green / Beige = wire color

You are correct about the line....there is an "inline connector" named Body/Chassis, the lock and unlock drivers from the BCM connect to pins 21 and 20 on the inline connector.

View attachment 176996

View attachment 176997
I can answer the wire gauge question. They are all metric cross section measurements in mm2. So, 10 in the first green circle would convert to 8awg, .75 is 18awg, etc.
 

chrisbh17

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I can answer the wire gauge question. They are all metric cross section measurements in mm2. So, 10 in the first green circle would convert to 8awg, .75 is 18awg, etc.

Awesome, thanks....I always thought the whole numbers were the actual gauge (i.e. 10 = 10 AWG), but I was thinking wrong all along.

Good to know now, though.
 

chrisbh17

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bellaireroad

bellaireroad

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