Causes: Communication error between the Engine Controller PCB and the Main Controller PCB occurred.
Remedy: 1. Check the connection of connector between the Engine Controller PCB and the Main Controller PCB. 2. Install the set of the controller firmware. 3. Replace the Main Controller PCB. 4. Replace the Engine Controller PCB.
Code: E736 0000
Description: Communication error with CCU/modem
Causes: Communication error with CCU/modem. NCU PCB type error.
Remedy: 1. Install the set of the controller firmware. 2. Replace the NCU PCB. 3. Replace the Main Controller PCB.
Code: E744 0001
Description: Language file version error
Causes: Language file version was not matched with the main program.
Remedy: Install the set of the controller firmware.
Code: E744 0002
Description: Language file size error
Causes: The size of the language file exceeded the upper limit.
Remedy: Install the set of the controller firmware.
Code: E744 1001
Description: Firmware version error
Causes: Version of the main program and the version of the start-up program was not matched.
Remedy: Install the set of the controller firmware.
Code: E744 4000
Description: Engine ID error
Causes: Invalid engine connection was detected.
Remedy: 1. Turn OFF and then ON the main power. 2. Check the Engine Controller PCB. 3. Install the Engine Controller PCB. 4. Install the set of the controller firmware. 5. Check the model code. (When the model code and the engine code are mismatched, E744-4000 occurs.)