Description and principle of interior lighting (Defender 2007+)

Location of elements

NOTE: Left hand drive vehicle shown (LHD), a similar device has a car with right-hand drive (RHD).

Pos.	spare part no	Name
1	-	Switch right (RH) back door (if installed)
2	-	Front dome light
3	-	Rear dome light (except model 90)
4	-	Tailgate switch (except model 90)
5	-	Switch left (LH) back door (if installed)
6	-	reading lamp (SVX model only (60th anniversary))
7	-	Driver door switch
8	-	Anti-theft module
9	-	central fuse box (CJB)
10	-	Passenger door switch
11	-	Reading light switch (SVX model only (60th anniversary))
12	-	reading lamp (SVX model only (60th anniversary))

Review

Each dome light contains a 3-position switch (permanently on, permanently off and automatic mode). In the permanently on mode, the light is powered from the battery via the CJB. In automatic mode, the operation of the interior lighting is controlled by the anti-theft system module. The anti-theft system module controls the status of the doors, including the tailgate, using a microswitch system. When any door is opened, a ground loop is created in the corresponding switch. Upon detecting a ground loop, the anti-theft system module turns on the interior lighting. If the door is then closed, the anti-theft system module switches off the interior lighting after about 15 seconds.


The anti-theft system module also turns on the interior lighting when it receives a valid unlock signal from the radio remote control.

For more information, see the chapter: Anti-theft system - active (419-01A Anti-theft system - active, Description and principle of operation).

Model SVX (60th Anniversary)

Pos.	spare part no	Name
1	-	(Left) reading lamp
2	-	Local lighting switch
3	-	(Right) reading lamp

The SVX has all the interior lighting features of the standard models plus two additional reading lights. Reading lights are located on the front surface of the storage compartment with a control switch located between them. The lights use a W3W bulb. To replace the bulb, use a suitable lever to gently pry off the lantern on the storage compartment, remove it and remove the bulb holder from the back of the lantern.

The reading lights are connected directly to the vehicle battery via fuses in the CJB and the battery electrical junction box (BJB). Therefore, the reading lights can work regardless of the position of the ignition switch. Each lamp receives battery voltage and the lamp lights up when the switch is activated, which completes the ground circuit.

Control scheme

NOTE: A = wired connection

Pos.	spare part no	Name
1	-	Battery
2	-	Anti-theft module
3	-	Driver door switch
4	-	Passenger door switch
5	-	Tailgate switch
6	-	Switch (left) back door (if installed)
7	-	Switch (right) back door (if installed)
8	-	Rear dome light
9	-	Reading light switch (SVX model only (60th anniversary))
10	-	Left reading light (SVX model only (60th anniversary))
11	-	Right Reading Light (SVX model only (60th anniversary))
12	-	Front dome light
13	-	CJB
14	-	BJB