Help identifying electrical connector - The 1947 - Present Chevrolet & GMC Truck Message Board Network

focusedontheprize · 07-04-2019, 09:09 AM

I have been able to clean up all the wiring on the truck and have one connector left I am trying to identify. This connector runs toward the passenger side and drops out down by the glove box. Does anyone know what this goes to? Thank you.

bigdaddy4x4 · 07-04-2019, 12:48 PM

looks like its for the dual tank switch ???

**hatzie** · 07-04-2019, 03:54 PM

Not the dual tank switch plug. That only has four terminals and they are female Packard 56 terminals to mate with the 1/4" Male disconnects on the switch.
It may be the Hot Fuel Module plug. It's the right plug...
http://67-72chevytrucks.com/vboard/s...d.php?t=757299

sweetk30 · 07-05-2019, 10:13 AM

as said not the fuel selector plug for sure .

not even close to hot fuel plug from the link . look at the plug shape . read his location .

power window and door lock plug if i was to guess since its all the way over by the glove box location . this is if i had to guess on it since i mostly play with man windows and locks .

focusedontheprize · 07-05-2019, 10:17 AM

Quote:

Originally Posted by bigdaddy4x4

looks like its for the dual tank switch ???

Thanks, I actually have the dual tank switch already identified and hooked up so it was not that.

Quote:

Originally Posted by hatzie

Not the dual tank switch plug. That only has four terminals and they are female Packard 56 terminals to mate with the 1/4" Male disconnects on the switch.
It may be the Hot Fuel Module plug. It's the right plug...
http://67-72chevytrucks.com/vboard/s...d.php?t=757299

So the wiring on that plug (in the link) is a bit different than mine. My plug has 6 wires going to it which include orange, brown, and white. I looked at the wiring diagram (see attached) and it shows a black wire, but does not identify what the other connectors were.

**hatzie** · 07-05-2019, 12:00 PM

Look on the 1988 R/V series wiring diagram page 43 PDF page 285... The plug in question is in the lower centre of the page.
PDF pages 289 & 290 have the ECM circuit number assignments and wire colors.

GM circuit #s Circuits follow

419 Brown/White ECM A-5 Inst Cluster #15 Malfunction Indicator Lamp
434 Orange/Black ECM B-10 Park Neutral Switch
437 Brown VSS to ECM A-10
450 Black Engine Ground to ALDL, ECM, ...
451 White/Black ECM A-9, ALDL B. Diag Enable
461 Orange ECM A-8, ALDL E. ECM Serial data

07-04-2019, 12:48 PM	#2
bigdaddy4x4 Registered User Join Date: Aug 2012 Location: concord ga Posts: 188	Re: Help identifying electrical connector looks like its for the dual tank switch ???

07-04-2019, 03:54 PM	#3
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: Help identifying electrical connector Not the dual tank switch plug. That only has four terminals and they are female Packard 56 terminals to mate with the 1/4" Male disconnects on the switch. It may be the Hot Fuel Module plug. It's the right plug... http://67-72chevytrucks.com/vboard/s...d.php?t=757299 __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.

07-05-2019, 10:13 AM	#4
sweetk30 Registered User Join Date: May 2012 Location: horseheads,ny rust belt Posts: 2,794	Re: Help identifying electrical connector as said not the fuel selector plug for sure . not even close to hot fuel plug from the link . look at the plug shape . read his location . power window and door lock plug if i was to guess since its all the way over by the glove box location . this is if i had to guess on it since i mostly play with man windows and locks . __________________ 77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great.

07-05-2019, 12:00 PM	#6
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: Help identifying electrical connector Look on the 1988 R/V series wiring diagram page 43 PDF page 285... The plug in question is in the lower centre of the page. PDF pages 289 & 290 have the ECM circuit number assignments and wire colors. GM circuit #s Circuits follow 419 Brown/White ECM A-5 Inst Cluster #15 Malfunction Indicator Lamp 434 Orange/Black ECM B-10 Park Neutral Switch 437 Brown VSS to ECM A-10 450 Black Engine Ground to ALDL, ECM, ... 451 White/Black ECM A-9, ALDL B. Diag Enable 461 Orange ECM A-8, ALDL E. ECM Serial data __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.

07-04-2019, 09:09 AM	#1
focusedontheprize Registered User Join Date: Feb 2012 Location: CA Posts: 846	Help identifying electrical connector I have been able to clean up all the wiring on the truck and have one connector left I am trying to identify. This connector runs toward the passenger side and drops out down by the glove box. Does anyone know what this goes to? Thank you. Attached Images __________________ "Dixie" - 1988 Chevrolet V30 CC DRW "3+3" \| 7.4L 454 (L19) \| TH400 \| 4" lift \| 35"s "Lucille" - 1949 Chevrolet 3100 (on hold)



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