Self-diagnosis wiring connector and ABS/EDL control unit wiring connector (VW Lt 2d)

The wiring connector for the ABS/EDL system self-diagnosis is shown in the figure 8.42.

Contact 1 - ground connection (terminal 31). Contact 3 - positive terminal (terminal 30). Contact 13 - K-wire to contact 29 of the ABS/EDL control unit wiring connector.

ABS/EDL control unit wiring connector (version 5.0) - in Figure 8.43, ABS/EDL control unit (version 5.3) - in Figure 8.44.

The assignment of the contacts of the wiring connector of the ABS/EDL control unit version 5.0 is given in Table 8.2, and for the ABS/EDL control unit version 5.3 - in Table 8.3.

Table 8.2. ABS/EDL control unit wiring connector pin assignment version 5.0

Contact	Contact assignment
1	Ground connection on the left side of the engine compartment
2	Supply voltage from the positive battery terminal
3
4	Supply voltage of terminal 15
5	Not used
6
7
8
9
10
11
12	EDL warning light
13	Not used
14
15	Ground connection on the left side of the engine compartment
16	Front left wheel speed sensor
17
18	Rear left wheel speed sensor
19
20	Rear right wheel speed sensor
21
22	Not used
23	Front right wheel speed sensor
24
25	Not used
26
27
28	Brake light switch
29	T14/13 connector, self-diagnostics
30	Not used
31
32
33
34
35
36
37
38
39
40	ABS warning light

Table 8.3. ABS/EDL control unit wiring connector pin assignment version 5.3

Contact	Contact assignment
1	Rear right wheel speed sensor
2
4	Front right wheel speed sensor
5
6	Front left wheel speed sensor
7
8	Rear left wheel speed sensor
9
10	Not used
11	T14/13 connector, self-diagnostics
12	Not used
13
14	Brake light switch
15	Relay supply voltage
16	Ground connection below the battery
17	Supply voltage from the positive battery terminal
18
19	Ground connection below the battery
20	ABS warning light
21	Not used
22	EDL warning light
23	Not used
24
25
26
27
28
29
30
31

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