BMW MSD80 MSD81 MSD85 MSD87 ECU Pinouts to Ktag

How to: clone Siemens MSDxx (MSD80, MSD81, MSD85, MSD87, MSD85.4) ECUs for BMW SSM vehicles using original Ktag K-suite ecu programmer.
To use this protocol of communication you have to remove and open the ECU. It is a risky operation, to be done with great care and caution to avoid damaging the ECU beyond repair.
After opening the ECU and before proceeding with reading and/or programming, you are strongly advised to reconnect the unit to the vehicle and start the engine, to make sure it still works.
To use this protocol you also need to connect to the ECU connector through a cable, and solder one or more wires to the programming pads.
Incorrect or poorly made connections and solderings may damage the ECU, often beyond repair.
Under no circumstances we shall be liable for any damage caused to the ECU during the opening, due to connections and soldering that do not comply with the instructions provided in this manual. If you are using Ktag clone, you are at your risk.
Notice
When writing the modified file, the checksum of the data may last several minutes, depending on the performances of your computer.
The first time you work on the ECU, before opening the ECU, you need to retrieve the protection password. Follow the instructions provided for each model to connect to the connector.
Retrieve Password
1.Remove the ECU from the vehicle;
2. Connect to the ECU connector to retrieve the password, according to the pinout provided for each model connection instructions:
● Plug-in 986: SIEMENS MSD80 IROM TC1796
ktag-clone-bmw-msd80-1
Material needed:
•Cable 14P600KT02
a.Connect the cable 14P600KT02 to the ECU connector according to the pinout below:
ktag-clone-bmw-msd80-2
Pin Color Description
Pin 1,1    Red       +12V
Pin 4      Noir       Ground
Pin 22    White    CAN-H
Pin 44    Green    CAN-L
b.Click on the Read Password button.
ktag-clone-bmw-msd80-3
Plug-in 989: SIEMENS MSD85 IROM TC1796
ktag-msd85-1
Material needed:
•Cable 14P600KT02
a.Connect the cable 14P600KT02 to the ECU connector according to the pinout below:
ktag-msd85-2
b.Click on the Read Password button
ktag-msd85-3
● Plug-in 991: SIEMENS MSD81 IROM TC1796
ktag-msd81-1
Material needed:
•Cable 14P600KT02
a.Connect the cable 14P600KT02 to the ECU connector according to the pinout below:
ktag-msd81-2
b.Click on the Read Password button
ktag-msd81-3
● Plug-in 992: SIEMENS MSD87 IROM TC1796
ktag-msd87-1
Material needed:
•Cable 14P600KT02
a.Connect the cable 14P600KT02 to the ECU connector according to the pinout below:
ktag-msd87-2
b.Click on the Read Password button
ktag-msd87-3
● Plug-in 1012: SIEMENS MSD85.4 IROM TC1796
ktag-msd854-1
Due to the ECU high power consumption, you have to supply the K-TAG with an external battery or a stabilized power supply (+12/24V – 5A).
Material needed:
•Cable 14P600KT02
•Battery supply cable 144300TALI
•External Battery or regulated power supply (+12/24V – 5A)
a.Connect the cable 14P600KT02 to the ECU connector according to the pinout below:
ktag-msd854-2
b.Connect the cable 144300TALI to the tool and the external battery;
c.Click on the Read Password button.
ktag-msd854-3
3. Proceed with the normal operations to read and write.

Recommendation

1.Open the ECU, taking care in not damaging the parts inside;
2.Reconnect the ECU to the vehicle and start the engine, in order to make sure that it is still working and has not been damaged in the opening;
3.Remove again the ECU from the vehicle;
4.Select the right plug-in;
5.Always make a backup copy of the ECU before Reading and / or Writing.

Instructions

1.Connect to the ECU according to the pinout provided for each models;

● Plug-in 986: SIEMENS MSD80 IROM TC1796

ktag-clone-bmw-msd80-1
The pins Boot can be found on the right side of the ECU.
ktag-clone-bmw-msd80-4
Available connection mode
Click on the selected mode for the instructions.
♦ Direct connection
Material needed:
•Cable 14P600KT02
•Solder wire
a.Solder a wire to the Boot pin shown in the picture;
b.Solder a wire to the two CNF1 pins shown in the picture;
ktag-clone-bmw-msd80-5
c.Connect the cable 14P600KT02 to the ECU connector according to the pinout below
ktag-clone-bmw-msd80-6
d.Remove all soldered wires before reinstalling the ECU on the vehicle.

● Plug-in 989: SIEMENS MSD85 IROM TC1796
ktag-msd85-1
The pins Boot can be found on the right side of the ECU.
ktag-msd85-4
Available connection mode
Click on the selected mode for the instructions.
♦ Direct connection
Material needed:
•Cable 14P600KT02
•Solder wire
a.Solder a wire to the Boot pin shown in the picture;
b.Solder a wire to the two CNF1 pins shown in the picture;
ktag-msd85-5
c.Connect the cable 14P600KT02 to the ECU connector according to the pinout below:
ktag-msd85-6
d.Remove all soldered wires before reinstalling the ECU on the vehicle.
● Plug-in 991: SIEMENS MSD81 IROM TC1796
ktag-msd81-1
The pins Boot can be found on the right side of the ECU.
ktag-msd81-4
Available connection mode
Click on the selected mode for the instructions.
♦ Direct connection
Material needed:
•Cable 14P600KT02
•Solder wire
a.Solder a wire to the Boot pin shown in the picture;
b.Solder a wire to the two CNF1 pins shown in the picture;
ktag-msd81-5
c.Connect the cable 14P600KT02 to the ECU connector according to the pinout below:
ktag-msd81-6
d.Remove all soldered wires before reinstalling the ECU on the vehicle.
● Plug-in 992: SIEMENS MSD87 IROM TC1796
ktag-msd87-1
The pins Boot can be found on the right side of the ECU.
ktag-msd87-4
Available connection mode
Click on the selected mode for the instructions.
♦ Direct connection
Material needed:
•Cable 14P600KT02
•Solder wire
a.Solder a wire to the Boot pin shown in the picture;
b.Solder a wire to the two CNF1 pins shown in the picture;
ktag-msd87-5
c.Connect the cable 14P600KT02 to the ECU connector according to the pinout below:
ktag-msd87-6
d.Remove all soldered wires before reinstalling the ECU on the vehicle.
● Plug-in 1012: SIEMENS MSD85.4 IROM TC1796
ktag-msd854-1
The pins Boot can be found on the right side of the ECU.
ktag-msd854-4
Due to the ECU high power consumption, you have to supply the K-TAG with an external battery or a stabilized power supply (+12/24V – 5A).
Available connection mode
Click on the selected mode for the instructions.
♦ Direct connection
Material needed:
•Cable 14P600KT02
•Solder wire
•Battery supply cable 144300TALI
•External Battery or regulated power supply (+12/24V – 5A)
a.Solder a wire to the Boot pin shown in the picture;
b.Solder a wire to the two CNF1 pins shown in the picture;
ktag-msd854-5
c.Connect the cable 14P600KT02 to the ECU connector according to the pinout below:
ktag-msd854-6
d.Connect the cable 144300TALI to the tool and the external battery;
e.Remove all soldered wires before reinstalling the ECU on the vehicle.
2.Select the right plug-in;
3.Make reading and programming

How to Read – Backup – Write using a Ktag Master tool
Backup: To make a full backup of the ECU, select Backup in the Reading box and click on Read.
Reading: Remove the check mark at the Backup option, select the component you want to read and then click on Read.
Notice: The term Maps at the side of the component indicates where the maps for engine control are stored.
Writing: Remove the check mark at the Restore option, select the component you want to write and then click on Write.
Notice: The term Maps at the side of the component indicates where the maps for engine control are stored.
Restore: To restore the backup file to the ECU, select Restore in the Writing box and click on Write.
ktag-clone-bmw-msd80-7

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