What are the part numbers for a DDEC V ECU?
Part number for the DDEC V ECU is listed in Table 3-3. Description Part Number Voltage No. of Cylinders DDEC V – ECU 23530802 12/24 Volts 6 Table 3-3 ECU Part Numbers The part numbers for the ECU connectors are listed in Table 3-4.
Where is the engine harness installed in a DDEC V?
7SA821 0509Copyright © 2005 DETROIT DIESEL CORPORATION DDEC V APPLICATION AND INSTALLATION MANUAL 3.3 ENGINE HARNESS The Engine Harness (EH) is installed at the factory and is delivered connected to all engine sensors, the fuel injection system and the ECU.
How is the engine harness connected to the ECU?
Engine Harness (refer to section 3.3) Factory installed harness that facilitates the receipt of input and output signals, controlling the fuel injection process and engine speed. Harness is connected to DDC installed sensors, the injection unit and the ECU(s).
What is the Shroud for ECU J1939 node?
Also connects the ECU J1939 node to other vehicle systems. Connector Shroud for VIH Connector (refer to section 3.2.1) The shroud protects the connectors from dirt and direct spray and routes the wires in the correct orientation.
Where does the power come from in an ECM?
1) keyed from the ignition switch to pin 70, 2) 12 volt battery power to pin 52, 3) 12volt battery power pin 53 Usually pin 52 and 53 are feed power from the battery on one wire that splits before the two pins at the ECM. You should find a fuse in the battery box for this power source.
What causes a battery to go dead on an ECM?
Battery drain or dead battery A failed ECM power relay can also cause a battery drain or dead battery. If the relay shorts it can leave power on to the computer, even when the vehicle is turned off. This will place a parasitic drain on the battery, which will eventually cause it to go dead.
What should I do if I lose power on my ECM?
You should find a fuse in the battery box for this power source. If you lose power at both these pins at the same time the ECM will never show a fault code. You also have two seperate ground wires on pins 65 and 67. Again this wire usually leaves the battery box as a single wire splitting into two at the ECM.