This is a '92 500E and I was working with the diagnostics and I arc'd from Pin 3 of the X11/4 to the CAN. The ignition was off. Now when I turn the key all the lights on a dash light except for the CE light. The engine cranks but will not fire.
I am getting Error codes that state no communication with the LH module.
Code 20 on PIN 4, Code 7 on Pin 7, Code 9 on Pin 8 and nothing on Pin 19. All these point to an open circuit. I've checked all the fuses I could locate. I'm hoping that there is one fuse I missed or something else before I consider bring the LH module in for service or replacement.
Any ideas?

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Mark

These guys are the experts.

http://www.500ecstasy.com/forums/index.php

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Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.

Check fuses on the top of the Base Module

I checked the 3 fuses (not 4) on the Base Module and swapped them out just as a precautionary.

Also after re-reading my thread..Let me make it clear what happened. I grounded pin 3 (+V) on the X11/4 to the metal module base. I got a small spark.

and the explanation of the codes are:
pin 4- code 20-No CAN data transmission from LF-SFI control module
pin 7- code 7-No CAN data bus signal from EA/CC/ISC,ABS/ASR,HFM-SFI or LF-SFI control module faulty.
pin 8- code 9-m104, 119 LH-SFI control module voltage supply, open circuit
pin 19-nothing, doesn't even tell me it's OK.
I've checked all the fuses I could find and before I start spending money on a module I wanted to see what else to check of if there is any more troubleshooting I can do.

Mark

Do you have power on pin 3 in the X11/4?

< >>

You have blown power to the module

What ever made you ground a 12v supply ?????

Fuses #7 and 9

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A Dalton

Trust me, it wasn't on purpose !!!
I was checking fixes to repair:
PIN 19 code 26 Upshift Delay faulty.
and when I pulled the cable off the x11/4 the pin grounded against the metal module. My BAD. But I was kinda surprised by the short , because the ignition was off. I assumed (wrongly) that since the ignition needed to be on to check codes, that there would be no power when the ignition was off.

And yes I still have power to pin 3, that's how I was able to pull these codes after my screw-up.

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Mark

Did you check 7 and 9?

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A Dalton

First off let me say Thank You Arthur for all the help! You gave me invaluable help and assistance so far. Best troubleshooting skills training I've had in a long time.
This is what I found so far.
At fuse #9 with fuse removed I have power across the holder ignition off & on.
At fuse #7 with fuse removed I have power across the holder only with the ignition on.
On the display for the N59 the red LED is lit as soon as I turn the key ON. When I hit the button it gets brighter.
What I haven't found so far is the N59 module! I have 3 wires from the display to a connector that then goes down along the wall on the right side of the engine then I lose it. Nothing that I have talks about the location of the N59 so I'll have to trace it and see where the wires go.

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Mark

Mark, N59 is in the right foot well, but I would not worry about it for now. It is a power consumer, not the source. I think you need to check your fuses again. To check fuses you need to measure voltage between the fuse holder and chassis ground. Measure on both sides with ignition ON. If the fuse is good you'll see same voltage 12VDC. If the fuse blown, you'll see 12VDC on one side and 0 on the other. Also, go back and double check fuses on the Base module. You need to check continuity on them as you can't get to the holders to measure voltage. Do not rely on visual inspection only. If you find all fuses good I'd suspect the Base module. Maybe burnt trace inside?
Mike

Went back and checked all fuses to ground and the readings are 12V, also checked for continuity on the fuses in the BM and they show 0V.
I did check the N59 at pin 4 I got a reading of 3.1V to ground. Pin 9 gave me 12V.
Mike I think your right that there is a bad lan in a module.
The LED on the X11/22 always being lit with the ignition being on is confusing along with a 9V voltage reading on pin 4 also on the X11/22.
The codes all show OPENS but this is looking more like a SHORT somewhere in a module.

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Mark

OK, went through the fuses again and all check OK.
Reseated relays, checked wiring harness, reseated all fuses.
Opened the Base Module and didn't find anything obviously wrong.
Removed and reseated all modules.
Checked codes again and now have nothing on PIN 4.
I believe that it is the BM. ( probably the circuit that is protected by FUSE 2 ).
I'm kinda at a loss on how to continue. Does anyone know if there is someone that does diagnostics on the modules? Any recommendations on a shop that repairs them? Beckmann?
TIA

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Mark

Maybe you said that you already did this,
but I hadd a similair prob once, when I first connected teh ASR defeat on my 500E. I did not have the CAN completely seated. Seat/reseat them all and close the box completely. That was the only way that I got mine to restart

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Regards,

Albert
aldedmon@yahoo.com

I just wanted to say that my 500E is now back and running.
I found 2 items that were causing problems.
1) for the "will crank but will not start" problem was the Base Module.
2) a rough idle, after I got it up and running again, was a broken Cam Sensor. I happen to find this when checking the connectors on the wiring harness.
I just didn't want to leave this thread hanging so I thought that I would state what the fix was. Thanks for everyones help

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Mark

Thanks Albert, Yeah I tried that and no help...Also tried to see what would happen if I pulled FUSE 2 on the BM and check to see if there was any change in the symptoms.
The only change I would was the LED on the X11/22(?) went out when the ignition was on. Which makes sense since it cut all power to the Diag. Module.

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Mark