Note:
Below are the wiring diagrams of the Citroen C-Crosser for controlling and operating the rear light, brake light and license plate lighting to understand the functionality of the individual elements of the system and their relationship.
Scheme 1. License plate lighting, brake light and taillight Citroen C-Crosser:
1 - fuse;
2 - to the distribution system;
3 – a chain of control of a back lantern;
4 - rear left lamp;
5 - rear right lamp;
6 – the left lamp of a lantern of illumination of license plate;
7 – the right lamp of a lantern of illumination of license plate;
8 - lighting of the glove box, seat heating;
9 – a stoplight lamp in the left back lantern;
10 – a stoplight lamp in the right back lantern;
11 - starting circuit;
12 - conjugation circuit;
13 - diagnostic connector;
14 – a chain for cars with the right arrangement of a wheel;
15 - chain for cars with left-hand drive;
16 - electronic control unit ETACS;
17 - reminder switch about the key left in the lock;
18 - contact door switches.
Scheme 2. License plate lighting, brake light and taillight Citroen C-Crosser:
1, 5 - fuses;
2 - relay block in the engine compartment;
3 - ignition lock;
4 - electronic control unit ETACS;
6 - ignition lock relay;
7, 14 - starting circuit;
8, 15 - conjugation circuit;
9 - steering column control unit;
10 - light switch;
11 – windshield wiper switch;
12 – a chain for cars with the left arrangement of a wheel;
13 - electric window regulator;
16 – CAN 1 connector;
17 - liquid crystal display;
18 – transmission line circuit;
19 - processor module;
20 - rheostat;
21 - automatic breaker;
22 - instrument cluster.
Scheme 3. License plate lighting, brake light and taillight Citroen C-Crosser:
1 - electronic control unit ETACS;
2, 5, 10 – analog interface circuit;
3, 12 - starting circuit;
4 - conjugation circuit;
6 - input signal (wheel speed sensors);
7 – CAN 2 connector;
8 – CAN 3 connector;
9 - electronic control unit ABS;
11 - photosensor;
13 - fuse;
14 – hatch electric drive in the lid;
15 – light sensor;
16 - for cars without an automatic windshield wiper system;
17 - for vehicles with an automatic windshield wiper system.
Source: Operation, maintenance and repair manual for Mitsubishi Outlender XL, Peugeot 4007, Citroen C-Crosser