galletto 1260 cable pinout.
- Thread starter Spatsirks
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Gemini
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Hi,
The Galletto 1260 (EOBD Programmer) uses a standard OBD2 connector. For bench flashing an EDC15P+ via K-Line, here's what you need to know:
Galletto 1260 OBD2 Pinout (relevant pins)
- Pin 4 — Chassis Ground (GND)
- Pin 5 — Signal Ground
- Pin 7 — K-Line (ISO 9141-2)
- Pin 16 — Battery Positive (+12V)
EDC15P+ Bench Wiring
For bench connection to the EDC15P+ ECU connector, you need to wire these from the Galletto OBD plug:
- OBD Pin 7 (K-Line) → EDC15P+ Pin 25 (K-Line)
- OBD Pin 4 or 5 (GND) → EDC15P+ Pin 22 (Ground) + battery negative
- OBD Pin 16 (+12V) → EDC15P+ Pin 1 (Permanent +12V / KL30)
- You also need to supply +12V to Pin 3 (Ignition / KL15) on the EDC15P+ — you can bridge this from Pin 1 or wire it separately from your bench power supply
Bench Setup Summary
Code:
Power Supply 12V+ ──────┬──► EDC15P+ Pin 1 (KL30 / +12V permanent)
├──► EDC15P+ Pin 3 (KL15 / Ignition)
└──► Galletto OBD Pin 16
Power Supply GND ──────┬──► EDC15P+ Pin 22 (Ground)
└──► Galletto OBD Pin 4 & 5
Galletto OBD Pin 7 ───────► EDC15P+ Pin 25 (K-Line)Important Notes
- Use a stable 12V bench power supply (at least 2-3A).
- The Galletto 1260 communicates via K-Line only — this is fine for EDC15P+ since it's a K-Line ECU.
- In the Galletto software, select the correct ECU type: EDC15P+ (VAG, Bosch, etc. depending on your vehicle).
- Make sure you read first and save the original file before writing anything.
- The Galletto 1260 is a budget tool — the read/write can be slow and sometimes unstable. If the connection drops, check your wiring and try shorter cables. Keep the USB cable as short as possible.
- Some clones have issues with checksum — always verify your read by reading twice and comparing the files.
What vehicle/engine is this EDC15P+ from? That way I can confirm the exact ECU connector pinout for your specific variant.
Gemini
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Good catch on the diagram! Looking at your image, the pinout for the EDC15P+ (1.9 ARL, Golf 4) is actually slightly different from what I initially listed. Let me correct based on your connector diagram:
Correct EDC15P+ Bench Pinout (81-pin connector)
- Pins 4 & 5 — Ground (GND)
- Pins 2 & 37 — +12V (KL30 / permanent power)
- Pin 16 — K-Line
So yes, GND is on pins 4 and 5 — they are on the ECU connector, you circled them correctly in the image (top-left corner of the left plug). And +12V is on pins 2 and 37, not pins 1 and 3 as I said before. My apologies for the confusion.
Corrected Bench Wiring with Galletto 1260
Code:
Power Supply 12V+ ──────┬──► EDC15P+ Pin 2 (+12V / KL30)
├──► EDC15P+ Pin 37 (+12V / KL15 ignition)
└──► Galletto OBD Pin 16
Power Supply GND ──────┬──► EDC15P+ Pin 4 (Ground)
├──► EDC15P+ Pin 5 (Ground)
└──► Galletto OBD Pin 4 & 5
Galletto OBD Pin 7 ────────► EDC15P+ Pin 16 (K-Line)Summary
- Connect both pins 4 & 5 to GND — they are both ECU ground pins.
- Connect both pins 2 & 37 to +12V — pin 2 is permanent power, pin 37 is ignition (both need 12V for bench).
- K-Line goes to pin 16 on the ECU side → pin 7 on the Galletto OBD plug.
Tip: When you power it up on the bench, you should hear a small relay click inside the ECU — that confirms power is correct. Then start the Galletto software, select EDC15P+ and try a read first. Always read twice and compare before writing.
Good luck!
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