Diagnose-Testumgebung | Posts 16+

Hi,

@Gremlin: Thank you!

Does anyone have a list showing which engine types are compatible with which generation of EDC (Engine Control Unit)? I assume that all VE (Variable Geometry Turbocharger) engines are at most EDC15, is that correct?

Best regards,

Jan.

It's not entirely simple.

VP37 modules in passenger cars are likely to be mostly EDC-15 (excluding older models).

However, the EDC-15 can also support PD and CR, so it's not easy to say definitively. Since it's vehicle manufacturer-specific, the best approach is probably to search through the Bosch online catalog.

CU Gremlin.

Hi.

thank you again

Regarding the ABS control unit, I should be able to provide you with more information in the next few days, as it's scheduled to arrive then. I'll also take it apart right away to see how it works.

For just one euro, you can't really go wrong.

Best regards,

Jan.

Regarding the ABS control unit, I should be able to provide you with more information in the next few days, as it's scheduled to arrive then. I'll also take it apart at that point to examine it.


You should actually be able to fit two processors in there .


CU Gremlin.

Hi,

Quote:

You should actually find two processors inside.

2 CPUs for one euro, not bad, right?

"To be honest, I'm not really surprised. An ABS control unit should have some level of redundancy."

I don't know exactly what the year of manufacture and type of this ABS is, so it would probably be pointless to guess what's exactly inside, but we'll know soon .

Best regards,

Jan.

Hello everyone,

My package has arrived, and now the disassembled item is lying in front of me.

It's an ABS unit, likely from an older Golf 3 (model number 1H0 907 379D, now superseded by ...375), which, according to the markings on the chips, either comes from Teves or uses Teves software.

Gremlin is correct; there are two CPUs inside, specifically MHS 83C154 controllers, which are part of the 80C51 family, likely with 16K of ROM and 256 bytes of RAM.

"On the two EEPROMs, besides the TEVES marking and some (unsearchable) data, one of the other chips is from Siemens Austria, and one has been deliberately ground down so that the markings cannot be read."

For those who are curious... I've attached the pictures.

Does anyone happen to have information about the pin configuration of this part? It's probably possible to find that information in the wiring diagrams for the Golf or Polo, but before I try that, I thought I'd ask if anyone knows.

Best regards,

Jan.

P.S.: Just to be clear: I have no intention of installing this modified engine control unit in any car; it is solely for diagnostic purposes.

1H0 907 379 is replaced by 1H0 907 379 B and later replaced by 1H0 907 379 D.

This is an ITT Mark 04, formerly known as a Teves 04.

In this case, it's a pure ABS system, without Electronic Stability Control (ESC).

This part was originally installed in the Corrado, Golf (1992-1995), Golf Cabriolet (1994-1998), and Passat 35i.

Ideally, only functions 01, 02, 05, and 06 should be accessible through the self-diagnosis feature.

You probably don't need much more information now...

Contact assignment of the T55 connector, wiring harness/control unit - J104.

1 - Mass (Grade 31)
2 - ABS pressure relief valve, front left - N102.
3 - Class 30, regarding the ABS relay - J102.
7 - Relay for EDS - J263
13 - ABS pressure control switch - F137.
15 - ABS hydraulic pump relay - J185.
16 - Pedal position sensor for the brake pedal - G100.
18 - ABS pressure relief valve, rear right - N135.
19 - Mass (Grade 31)
20 - ABS inlet valve, front left - N101.
21 - ABS pressure relief valve, front right - N100.
26 - ABS pressure control switch - F137.
27 - Rear right wheel speed sensor - G44
28 - Rear left wheel speed sensor - G46.
29 - Front right speed sensor - G45.
30 - Front wheel speed sensor, left side - G47.
31 - Hydraulic pump fitting - G101.
32 - Brake light switch - F
33 - Class 30, regarding ABS relay - J102.
34 - ABS Relay - J102
35 - Battery + via S54.
36 - ABS pressure relief valve, rear left - N136.
37 - Valve 1 for limited-slip differential - N125.
38 - ABS inlet valve, front right - N99.
40 - Valve 2 for limited-slip differential - N126
41 - Pedal position sensor for the brake pedal - G100.
42 - T2z/2 connector (K-line).
45 - Rear right wheel speed sensor - G44.
46 - Rear left speed sensor - G46.
47 - Front wheel speed sensor, right side - G45.
48 - Front left speed sensor - G47
49 - Hydraulic pump port - G101.
52 - ABS control lamp - K47.
53 - Size 15 connector, T1 type.
54 - ABS intake valve, rear left - N134.
55 - Rear right ABS intake valve - N133

Hi,

Thank you very much!

That's exactly what I was looking for; it should be perfectly sufficient to get this thing up and running for the intended purpose.

I will provide further updates later.

Best regards,

Jan.

If you want to test custom-built interfaces, get the problem cases, and then you'll have fun .

Although there are problem children that I wouldn't want to deal with... for example, a speed limiter device.

Hi,

"No, I'm more interested in the technology of the control unit itself than in the diagnostics (although that's also important, but not my primary focus). To get meaningful insights from the interfaces, you would probably need more than just one control unit."

Best regards,

Jan.

My MSG and ABS modules should be on their way, the post office sends its regards...
Where can I find information about the pinout of the MSG connector?

Which one?

Um, I also need something like that for mine.
VW part number 811 906 264, BOSCH part number 0 280 800 104(105).
I'm not sure if there's a diagnostic possibility .

While we're at it, I need a part number for a diagnostic connector.
My desk is a complete mess, and I want to tidy it up.

Current test environment:

Engine Control Unit (ECU) for VW Golf 3, MKB: ABS.
Audi ZV/DWA/FFB control unit.
Audi interior monitoring.
Combination instrument panels for Golf 4/Passat.

MSG 032 906 030 from a Volkswagen Golf III.
Airbag control unit, also for Golf 3.

Perhaps another MSG (Motor Steuergerät - Engine Control Unit) from a Polo will be added.

Okay, the first control unit is right here in front of me. It's an airbag control unit.

Type: 1H0 959 656

The device contains a Motorola IC (ZC408999CFNA), a Siemens IC (TLE4261, a 5V voltage regulator), and another SA20 component, which is part of a 'loose mass' (crash sensor).

Does anyone know the pinout configuration for this control unit (STG) off the top of their head, or does anyone have more detailed information about it?