KISSMYAURA
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LOL think you can guess how I found it out right ? 
Option one light repeats the front light etc - just run feeds from the bulb connectors, same same, you can still use a TD5 lamp housing just the switch will be redundant as you will wire direct to pins, 2 wires only.
Option two (aka the 'johnny crimpset + the scotchclips" verison ) wire up via fuse straight to permanent live as a stand alone light.
The alarm ECU (BCU) detects a door is open and tells the ECU to grant an earth path for the light)
or to be more specific......
To determine when to provide an interior courtesy lamps enable output, the BCU checks the following input conditions:
A Ignition state.
B Driver’s door open.
C Passenger or rear door open.
The courtesy lamps operate at full brightness when they are first switched on. The BCU then gradually dims the lamps(fade-out) before completely switching them off.
Fade-out occurs over a period of two seconds following the logical control signal to turn off the lights.
When a door is opened, the BCU provides earth paths from the interior lamps.
The following table lists the courtesy lamps operation and duration for holding the lamps on that occurs after the BCU has detected a condition that signals the courtesy lamps should be switched on:
Control signal Additional conditions Duration
Door open - 10 minutes
Unlock signal from remote transmitter All doors closed and ignition switch not in position III - 1 minute
OR
Unlock signal from the driver’s door lock All doors closed and ignition switch not in position III - 1 minute
Ignition switch turned from position II or III to position 0 - All doors closed - 1 minute
Door changed from open to closed All other doors closed and ignition switch not in position III - 15 seconds them dim out.
Ignition switch in position III - Timer cancelled
OR
BCU receives a lock command - Timer cancelled
FFS its a truck not a space shutttle!! why make it so complicated?
Answer- mass produced electrics for posher vehicles in the range........ Discrubbery & Mange Rover
So in summery my friend, eat more carrots and don't drive at night...............
Option one light repeats the front light etc - just run feeds from the bulb connectors, same same, you can still use a TD5 lamp housing just the switch will be redundant as you will wire direct to pins, 2 wires only.
Option two (aka the 'johnny crimpset + the scotchclips" verison
) wire up via fuse straight to permanent live as a stand alone light.The alarm ECU (BCU) detects a door is open and tells the ECU to grant an earth path for the light)
or to be more specific......
To determine when to provide an interior courtesy lamps enable output, the BCU checks the following input conditions:
A Ignition state.
B Driver’s door open.
C Passenger or rear door open.
The courtesy lamps operate at full brightness when they are first switched on. The BCU then gradually dims the lamps(fade-out) before completely switching them off.
Fade-out occurs over a period of two seconds following the logical control signal to turn off the lights.
When a door is opened, the BCU provides earth paths from the interior lamps.
The following table lists the courtesy lamps operation and duration for holding the lamps on that occurs after the BCU has detected a condition that signals the courtesy lamps should be switched on:
Control signal Additional conditions Duration
Door open - 10 minutes
Unlock signal from remote transmitter All doors closed and ignition switch not in position III - 1 minute
OR
Unlock signal from the driver’s door lock All doors closed and ignition switch not in position III - 1 minute
Ignition switch turned from position II or III to position 0 - All doors closed - 1 minute
Door changed from open to closed All other doors closed and ignition switch not in position III - 15 seconds them dim out.
Ignition switch in position III - Timer cancelled
OR
BCU receives a lock command - Timer cancelled
FFS its a truck not a space shutttle!! why make it so complicated?
Answer- mass produced electrics for posher vehicles in the range........ Discrubbery & Mange Rover
So in summery my friend, eat more carrots and don't drive at night...............
