6E-330 Engine Control System (4HK1)
Repair Instructions
Engine Control Module (ECM)
Replacement / Fuel Injector ID Code Data
Programming
If the ECM is replaced the Fuel Injector ID Code Data
(24, 0-9 or A-F characters for each fuel injector) MUST
be reprogrammed into the new ECM.
Uploading the Fuel Injector ID Code Data from the
ECM
Important:
Only perform this procedure if the ECM is being
replaced. The current fuel injector ID code data can be
determined with the Tech 2. If the ECM does not
communicate with the Tech 2, go to the next procedure.
1. Install the Tech 2.
2. Turn ON the ignition, with the engine OFF.
3. Select Diagnostics > appropriate vehicle
identification > 4HK1 (Common Rail) >
Programming > Injector ID Code > Upload ID
Code.
4. After complete the upload, turn OFF the Tech 2.
5. Turn OFF the ignition.
Retrieving the Fuel Injector ID Code Data with a
Non-communicating ECM
Important:
Only perform following procedure if the ECM is being
replaced and the Tech 2 does not communicate. The
current fuel injector ID code data can not be
determined with the Tech 2, the fuel injector numbers
must be recorded from the factory affixed label on the
cylinder head cover or each fuel injector ID plate.
Recording from the label on cylinder head cover;
Important:
Only perform this procedure if the fuel injectors are not
being replaced in the past.
1. Record all numbers of each cylinder on the label.
Legend
1. Cylinder Number 1 Fuel Injector ID Code
2. Cylinder Number 2 Fuel Injector ID Code
3. Cylinder Number 3 Fuel Injector ID Code
4. Cylinder Number 4 Fuel Injector ID Code
5. Injector ID Code Label
6. Cylinder Head Cover
Recording from the each fuel injector ID plate
1. Remove the cylinder head cover. Refer to Fuel
Injector replacement in this section.
2. Record 24 figures of each fuel injector ID plate.
The correct order for the fuel injector ID code for
the following illustration is as follows:
56 00 D1 CA 00 00 EC 00 23 14 21 B7
N6A6477E
1
2
3
4
5
6