Can someone check a frunk ground for me?

como · 09-16-2009, 08:33 AM

According to the haynes manual, there are grounding points "under" the front left and front right pillars. In my aw11, I see one on the right, and on the left I see a bolt where it looks like one may be, just near a silver cylinder (something to do with the AC), pretty much directly across from the right side- But there are no wires bolted to it, and I think that may be the cause of some of my ground-fault woes.

Can someone check over there, see if they can find a grounding point, and if so tell me roughly where the wires go, so that I might find mine and re-ground them? I inspected the harness the best I can in that area and don't see any loose ends, let alone a grounding strap....

The haynes manual also speaks of a grounding point on one of the fenders, but again I cannot locate such a strap. Anyone have an idea? I'd think it would be on the chassis side, since the fenders themselves (at least on mine) were insulated with weather stripping, so may have not even been grounded.

mr2tim · 09-16-2009, 10:24 AM

Bro, just don't check 1 or 2 if they all aren't 100% then your car is not 100%

Most Grounds are a 10mm bolt. Discard those old bolts and use new shiny new ones with washers they only cost pennies!!

Ground point "C" (page 26 of 1989 Electrical Service Manual) is located just above the drivers foot area fuse box.
Ground Point "B" is opposite on the pass side kick area, under and front of the AC fuse area.

Ground Point "A" is located inside the front trunk just inside the right wheel and attaches to the frame

Ground Point "D" is on the chassis below the battery within the negative grounding assembly (Main grounding!!tied into negative wire on battery))

Ground Point "F" is inside the trunk at license plate area.

Ground Point "E" (Supercharged) under the fuel rail mid-way on block.
(N/A) rear firewall

Ground Point "G" is behind the driver seat on the sidewall

Those Haynes manual are "very" generic and do not address much from model to model.

como · 09-16-2009, 12:41 PM

Okay, I have A,

not sure about B, didn't see a ground there unless its the part of the harness that bolts on, in which case its grounded,

C is on for sure,

I never touched wiring in the engine bay, so D should be good (she cranks fine, too, so I'd imagine that uses D),

E is a mystery to me, but if its in the engine bay, again should be fine...

F is on for sure

G... No idea, don't recall seeing a grounding strap there.

So, I'll have to check for G, and inspect the B area to see if theres a strap seperate from that bulk of wires. I know I checked there, but I since installed the hvac system

Thanks so much for that list, I'm going to print it up and shove it inside my fuse box.

YellowJacket · 09-16-2009, 01:06 PM

Engine Bay: http://ic2.pbase.com/u6/aw11mr2/larg...2.File0046.jpg

Front: http://k53.pbase.com/v3/01/187001/1/...4.frontend.jpg

como · 09-16-2009, 02:18 PM

Those are points A and C, (thanks for the picture, is this in the BGB?) which I have- it's B and G I'm having a hard time with. B is supposedly inside the car not far from A, and G is supposedly behind the drivers seat somewhere, which is out of frame. I downloaded the BGB last night, if this picture is in there I'd love to know the page number- I'm still digging through that PDF (over a thousand pages!) but not coming up with diagrams for the other ground points.
Is there a different manual I can download? I'd like to get all the documentation on this car I can.

como · 09-16-2009, 05:55 PM

Okay, there is no grounding strap for G, all we have on the sidewall there is the door buzzer. The wiring harness passes by, but theres no wire sticking out to ground.
Can someone verify that this ground exists?

Ditto for B; the only thing there is in the block where the plugs plug in, it has a metal tab thats grounded quite well.

YellowJacket · 09-16-2009, 08:17 PM

Dont know why the pics are not BOTH loading.
These are coming from Ron's fabulous picture resource site. Its awesome.
Some are BGB but others are not.
Go to the electrical section and prowl around
aw11mr2's Photo Galleries at pbase.com

Engine Bay Grounding Points:

09-16-2009, 08:33 AM	#1 (permalink)
como Road Warrior Join Date: Jan 2009 Location: Southern Maine Posts: 652 Thanks: 13 Thanked 10 Times in 9 Posts iTrader Rating: (2/100% )	Can someone check a frunk ground for me? According to the haynes manual, there are grounding points "under" the front left and front right pillars. In my aw11, I see one on the right, and on the left I see a bolt where it looks like one may be, just near a silver cylinder (something to do with the AC), pretty much directly across from the right side- But there are no wires bolted to it, and I think that may be the cause of some of my ground-fault woes. Can someone check over there, see if they can find a grounding point, and if so tell me roughly where the wires go, so that I might find mine and re-ground them? I inspected the harness the best I can in that area and don't see any loose ends, let alone a grounding strap.... The haynes manual also speaks of a grounding point on one of the fenders, but again I cannot locate such a strap. Anyone have an idea? I'd think it would be on the chassis side, since the fenders themselves (at least on mine) were insulated with weather stripping, so may have not even been grounded.

09-16-2009, 01:06 PM	#4 (permalink)
YellowJacket 1985 16v NA 6-speed Join Date: Sep 2008 Location: Nashville, TN Posts: 415 Thanks: 8 Thanked 31 Times in 24 Posts iTrader Rating: (1/100% )	Engine Bay: http://ic2.pbase.com/u6/aw11mr2/larg...2.File0046.jpg Front: http://k53.pbase.com/v3/01/187001/1/...4.frontend.jpg Last edited by YellowJacket; 09-16-2009 at 08:16 PM..

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09-16-2009, 10:24 AM	#2 (permalink)
mr2tim SUPERcharZed ToyZ RacZer Join Date: Mar 2008 Location: South Florida Posts: 1,789 Thanks: 8 Thanked 118 Times in 111 Posts My Google Map iTrader Rating: (6/100% )	Bro, just don't check 1 or 2 if they all aren't 100% then your car is not 100% Most Grounds are a 10mm bolt. Discard those old bolts and use new shiny new ones with washers they only cost pennies!! Ground point "C" (page 26 of 1989 Electrical Service Manual) is located just above the drivers foot area fuse box. Ground Point "B" is opposite on the pass side kick area, under and front of the AC fuse area. Ground Point "A" is located inside the front trunk just inside the right wheel and attaches to the frame Ground Point "D" is on the chassis below the battery within the negative grounding assembly (Main grounding!!tied into negative wire on battery)) Ground Point "F" is inside the trunk at license plate area. Ground Point "E" (Supercharged) under the fuel rail mid-way on block. (N/A) rear firewall Ground Point "G" is behind the driver seat on the sidewall Those Haynes manual are "very" generic and do not address much from model to model.

09-16-2009, 12:41 PM	#3 (permalink)
como Road Warrior Join Date: Jan 2009 Location: Southern Maine Posts: 652 Thanks: 13 Thanked 10 Times in 9 Posts iTrader Rating: (2/100% )	Okay, I have A, not sure about B, didn't see a ground there unless its the part of the harness that bolts on, in which case its grounded, C is on for sure, I never touched wiring in the engine bay, so D should be good (she cranks fine, too, so I'd imagine that uses D), E is a mystery to me, but if its in the engine bay, again should be fine... F is on for sure G... No idea, don't recall seeing a grounding strap there. So, I'll have to check for G, and inspect the B area to see if theres a strap seperate from that bulk of wires. I know I checked there, but I since installed the hvac system Thanks so much for that list, I'm going to print it up and shove it inside my fuse box.

09-16-2009, 02:18 PM	#5 (permalink)
como Road Warrior Join Date: Jan 2009 Location: Southern Maine Posts: 652 Thanks: 13 Thanked 10 Times in 9 Posts iTrader Rating: (2/100% )	Those are points A and C, (thanks for the picture, is this in the BGB?) which I have- it's B and G I'm having a hard time with. B is supposedly inside the car not far from A, and G is supposedly behind the drivers seat somewhere, which is out of frame. I downloaded the BGB last night, if this picture is in there I'd love to know the page number- I'm still digging through that PDF (over a thousand pages!) but not coming up with diagrams for the other ground points. Is there a different manual I can download? I'd like to get all the documentation on this car I can.

09-16-2009, 05:55 PM	#6 (permalink)
como Road Warrior Join Date: Jan 2009 Location: Southern Maine Posts: 652 Thanks: 13 Thanked 10 Times in 9 Posts iTrader Rating: (2/100% )	Okay, there is no grounding strap for G, all we have on the sidewall there is the door buzzer. The wiring harness passes by, but theres no wire sticking out to ground. Can someone verify that this ground exists? Ditto for B; the only thing there is in the block where the plugs plug in, it has a metal tab thats grounded quite well.

09-16-2009, 08:17 PM	#7 (permalink)
YellowJacket 1985 16v NA 6-speed Join Date: Sep 2008 Location: Nashville, TN Posts: 415 Thanks: 8 Thanked 31 Times in 24 Posts iTrader Rating: (1/100% )	Dont know why the pics are not BOTH loading. These are coming from Ron's fabulous picture resource site. Its awesome. Some are BGB but others are not. Go to the electrical section and prowl around aw11mr2's Photo Galleries at pbase.com Engine Bay Grounding Points: