Boot mode Wiring for Temic ECU
144300K213

Notice: There are two types of cable for this protocol; power requirements to work correctly is +24V.

Old cable

New cable with Bootloader Adapter 14P600KT04

To explain the procedure about how to tune a MERCEDES truck, we will use an ACTROD 1857 as example.

Locate the Electronic Control Unit placed on the right of the engine base, next to the oil sump. The ECU externally has two external junctions for Diesel fuel and two connectors for circuitry visible from the front splashboard next to the crossmember. In some cases you can find two plastic shields covering the ECU.

The electric connectors can be detached by sliding the lower part laterally (the smallest one has the movable part in yellow). This is the connector we will use to communicate with the control unit.

Remove the ECU from its compartment and open it: After cutting all the sides of the case, including the parts near the screws, proceed VERY CAREFULLY to lift the cover. Insert a screwdriver into the corners near the screw and then lever up, thus avoiding any possible damage to the aluminum edge of the ECU. Take great care to not let the screwdriver (or any other leverage tool you may use) fall into the ECU.

Once the ECU is open you can carefully lift the cover and get to the parts below.

Now that the ECU is open, you have to check the 16 pins connector (on the truck side of the ECU): it is important to know whether the pin 7 is free or not.

Jak postępować when PIN7 is free

You have to connect Pin 7 of the 16 pins connector to a pad on the ECU. The position of the pin to use in the 16 pin connector is always the same, regardless of the type of hardware (PSOP Flash EPROM or TSOP Flash EPROM).

The other end of the wire must be welded to the programming pad of the ECU, located in different positions depending on the layout of the ECU.

There are 4 different TYPES of ECU:

1) PSOP OLD

2) PSOP NEW

3) TSOP

4) PSOP 4MB

Ostrzeżenie: We suggest you to use the wire supplied in the kit, as it is high-temperature resistant. To avoid any problem you can remove the wire once you have finished the reading and/or programming.

Podłączyć przewód to the ECU and to the tool, następnie kontynuuj programowanie, postępując zgodnie z instrukcjami podanymi przez oprogramowanie.

When Pin 7 is not free, the end of the wire is NOT soldered to the 16 pins connector: you need to use the gray wire with crocodile clasp, as pokazanego na zdjęciu.
Pin 7 can be not free both on ECU with PSOP 4 Mb memory and TSOP memory.

Every time that the ECU has been programmed or read, you have to REMOVE the wire soldered to the pad, otherwise the ECU can’t work properly and the engine will NOT start.

To program the ECU, follow the instructions given by the tool.

When Pin 7 is not free, the end of the wire is NOT soldered to the 16 pins connector: you have to use a wire equipped with a Switch as the one pokazanego na zdjęciu below.
Pin 7 can be not free both on ECU with PSOP 4 Mb memory and TSOP memory.

Every time that the ECU has been programmed or read, you have to REMOVE this wire, otherwise the ECU can’t work properly and the engine will NOT start.

After you have welded the wire to the ECU

Turn the switch PROG/ON so that the PROG led is OFF. Connect the wires to the ECU connector and to the device, and then feed the Control Unit of the wiring.

Follow the instructions given by the software, which shows you when to put the switch on PROG/ON or PROG/OFF position. Where PIN7 is not free DO NOT USE the switches of the Control Unit of the wiring: you must use the switch of the wire you have just welded.

The red LED (ECU/ON) will be lighting when the device gives power to the ECU and the communication starts.

Ostrzeżenie: When the red LED is on, do not touch the ECU or any of its components: the ECU has voltage.

Ostrzeżenie: Niewłaściwe podłączenie przewodów może powodować problemy i zwarcia: nie ponosimy odpowiedzialności za ewentualne szkody wynikające z nieprawidłowego podłączenia.