Z-Flash Ford BCM Manual

Disconnect your vehicle's battery before installing your module. If your F-Series truck has two batteries, be sure to disconnect both.
Open the fuse box panel located in the passenger side footwell to gain access to the vehicle’s body control module (BCM). See Figure 1 for location.
Remove factory plug A from the BCM and plug in the Z-Flash plug A into that socket. Then plug factory plug A that you removed into the Z-Flash adapter plug A.
Remove factory plug B from the BCM and plug in the Z-Flash plug B into that socket. Then plug factory plug B that you removed into the Z-Flash adapter plug B.
Remove factory plug C from the BCM and plug in the Z-Flash plug C into that socket. Then plug factory plug C that you removed into the Z-Flash adapter plug C.

Connect the remaining 10 outputs into their respective leads on the flasher module in any order. Make sure to match the two white plugs for power and ground. See Figure 2 and Figure 2.1 for details.

There are two ways to activate the module: with the provided switch or by hardwiring it into your own controller or the vehicle’s upfitter switch. See the chart below for instructions.
After installing your Z-Flash module, reconnect your vehicle's battery.

Switch	Hardwire
Plug the provided switch into the flasher and turn on to activate.	If you need to switch patterns, simply plug the red momentary switch into the other Z-Flash port that takes the 2-slot plug.

Figure 3	Hardwire Wire: One end has a 4-slot connector that plugs into the Z-Flash and the other end is bare wire that ties to a switch.
Figure 4	Resistors: If you have non-factory LED bulbs, or if you’re getting a hyperflash condition after installation, the resistors need to be installed on the lights that are having that issue.
Figure 5	Red Jumper Wires: These are used when you want to disable certain lights from flashing.
Figure 6	Fuse Wire: This fuse wire is not needed unless you’re hardwiring your module to an external switch.