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451 ESP Controller Pin Out

Modification Details




The traction control (ESP & ABS) controller is attached to the side of the ABS pump underneath the car.
It's shielded by the plastic undertray for protection.

It's easily recognised by the several hard brake pipes coming from the unit.


Pin Number Wire Colour Connection Notes
1 Brown Earth To Body
2 Red/Green SAM Plug 7, Pin 2 Permanent Live, Fuse 34, 40A
3 Red/Pink SAM Plug 1, Pin 5 Permanent Live, Fuse 11, 25A
4 Brown Earth To Body
5 Red/Green Left Front RPM Sensor
6 Red/Yellow Left Rear RPM Sensor
7 Blue/Black Right Rear RPM Sensor
8
9 Blue/Grey Right Front RPM Sensor
10 Red/Grey Right Front RPM Sensor
11
12
13 Black Brake Light Switch N/O, requires voltage
14 Green Speedo Pin 9 CAN Bus Low
15
16
17 Brown/White Brake Fluid Level Switch
18
19
20 Brown/Black Handbrake Switch N/O, Earthed
21
22
23
24
25
26 Blue/Green Left Front RPM Sensor
27 Blue/Yellow Left Rear RPM Sensor
28 Black/Red SAM Plug 3, Pin 2 Switched Live, Fuse 18, 10A
29 Red/Black Right Rear RPM Sensor
30 Black/Red Brake Switch N/C, Earthed
31
32
33
34
35 Green/White Speedo Pin 6 CAN Bus High


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