FORD LDM Localization

The following command message is used to actuate each load individually. The LDM shall only consider LF EEL and RF EEL depending on the mounting location detected.
For writing requirements (Service 2F) please refer to 6.5.3.70 0x427E- Enhanced Exterior Lighting Load Sequencing Request Status in BCM FS.

o Name: VO_Load_Seq
o Size: 8 Bytes
o Type: Command frame
o Identifier: 0x07
o Sampling: 80 ms

Table 34: LIN VO Load Sequencing FRAME DEFINITION
The Vehicle Operation Load Sequencing command provides a methodology that allows individual lamp loads to be active via diagnostics command to the BCM. The tester will look for the change in load to verify operation and that all connections in the functional path are intact (nothing is left unplugged). The message consists of 5 bytes of data, 1 byte per Lighting Module. The high order bit will enable load switching for that Module. The lower order 7 bits will be tied to a single load each in software (Supplier Defined). All loads OFF will be 0x00. To turn an output ON, the high order bit is set to 1 along with the desired load bit. Because the intent is to operate one load at a time, when a Lighting Module is actively commanded to drive a load the other four Lighting Modules will be OFF (0x00). This message will be broadcast only upon a diagnostics command to the BCM; the BCM will execute a separately defined schedule table (With No Standard Functional messages) and will set the Modules into the Load Sequencing Test State. The Signal definition table in the next section illustrates the signals for one Lighting Module only (Extra LDM/FCM).

Table 35: LIN VO Load Sequencing Signal Definition
The LDM shall consider the following loads:
Load 0: Static Bending Light (All applicable light sources)
Load 1: LB
Load 2: HB
Load 3: TI
Load 4: DRL
Load 5: POS
Load 6: PWMx(All applicable Light Sources)