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Home >> Porsche >> 1994 >> 911 Turbo >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System & All-Wheel Drive System >> Diagnosis & Testing >> Abs/All-Wheel Drive Control Unit & Circuits

Abs/All-Wheel Drive Control Unit & Circuits

ABS/ALL-WHEEL DRIVE CONTROL UNIT PIN ASSIGNMENTS

Pin Number Circuit/Component
1 Voltage (Terminal No. 15)
2 Rear Axle ABS Solenoid Valve
3 Ground, Right Front ABS Solenoid Valve
4 Self-Diagnostic Connector ("K" Lead)
5 Pump Motor Relay
6 Not Used
7 Valve Relay
8 Not Used
9 Acceleration Sensor Ground
10 Rear Spoiler Auxiliary Control Unit
11 Voltage (Terminal No. 30)
12 Not Used
13 Longitudinal Acceleration Sensor
14 Not Used
15 5-Volt Reference Voltage (Sensors)
16 Not Used
17 Voltage Supply, ABS Solenoid Valves
18 Longitudinal Lock Solenoid Valve
19 Left Front ABS Solenoid Valve
20 Voltage For Valve & Motor Relays
21 Transverse Lock Solenoid Valve
22 Front Right ABS Solenoid Valve
23 Voltage Supply, Lock Solenoid Valves
24 ABS Warning Light
25 Not Used
26 Not Used
27 Alternator (D+)
28 Full-Lock (Traction Control) Button
29 Brake Light Switch
30 Self-Diagnostic Connector ("L" Lead)
31 Pump Motor Monitoring
32 Not Used
33 Not Used
34 Transverse Acceleration Sensor
35 Lock (Traction Control) Warning Light
36 Not Used
37 Ground, Left Front/Rear Axle ABS Solenoid Valve
38 Not Used
39 Not Used
40 Full-Lock (Traction Control) Button Light
41 Not Used
42 Ground Shield, Right Rear Speed Sensor
43 Right Rear Speed Sensor
44 Ground Shield, Left Rear Speed Sensor
45 Left Rear Speed Sensor
46 Ground Shield, Right Front Speed Sensor
47 Right Front Speed Sensor
48 Ground Shield, Left Front Speed Sensor
49 Not Used
50 Not Used
51 Left Front Speed Sensor
52 Ground, Control Unit (Electronics)
53 Not Used
54 Not Used
55 Not Used
Fig 1: ABS/AWD Control Unit Pin Assignments
G93A82693Courtesy of PORSCHE OF NORTH AMERICA, INC.