Quote:
Originally Posted by MB-Dude
First things first… If you own a pre-OBDII Mercedes and have *not* made one of these ‘Home Brew DTC Readers', you are missing one of the best values for your tool box. All the parts are standard at Radio Shack and with an hour of your time, you can build a great little test box.
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Wow, you're good! Not just good but a
Quote:
Originally Posted by MB-Dude
So what codes did my ’94 SL500 generate?a
Test Pin #19 (Diagnostic Module) – 19 LED blinks
Test Pin #4 (LH-SFI) – 1 LED blink
Test Pin #7 (EA/CC/ISC w/ASR) – 3 blinks, 5 blinks, 14 blinks
The diagnostic code data I have (if I am reading these correctly) indicates (in the order listed above):
A) Injector open or short circuit or emission control system adaptation at limit.
B) Right EA/CC/ISC Actuator (left cylinder bank) (M16/1)
C) Stop Lamp Switch (S9/1)
D) Closed Throttle Position Contact Switch
Now for the fun part… what does it all mean? What I can tell you is what the problem isn’t.
One of the things I have suspected is the wiring that is part of the Main Throttle Actuator. This may help satisfy D and perhaps A.
I’m open to any and all thoughts, feedback and input.
Cheers,
Jeff
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Ahh . . . the infamous DTC#19 . . . check my page about halfway down and that can be fixed so you won't have to reset the CEL to pass smog!
I'd next replacet the brake stop lamp switch . . cheap to do and it has fixed a lot of suspect ETAs . . . Just as in my case, bad Neutral Safety Switch, that one also in in the 'path'. As you saw in MENU#24 (update: 10/19), replacing the NSW fixed my "ETA" problem.
Of course, reset all the codes and see what returns. . . .
I added your (re-sized) pics to my MENU#2 . . .