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Blue 32-pin connector
1 - -> Terminal 15
2 - Brake pad wear
3 - Speedometer output 1
4 - Not used
5 - Fuel-gauge sender
6 - Tank warning OBD 2
7 - Terminal 31 (sensor earth)
8 - Coolant temperature
9 - Terminal 31 (load earth)
10 - Oil pressure 2 (high)
11 - Engine-speed signal
12 - Air conditioner shutoff
13 - Electronic throttle/glow period warning lamp
14 - Self-levelling suspension
15 - Terminal 58d
16 - Trailer turn signal indicator
17 - -> Main beam
18 - Left turn signal indicator
19 - Not used
20 - Terminal 58s
21 - Driver's door contact
22 - Coolant low
23 - Terminal 30
24 - Terminal 31 (load earth)
25 - Consumption signal
26 - Right parking light
27 - Left parking light
28 - Speedometer input
29 - Brake
30 - S-contact
31 - Speedometer output 2
32 - ESP/TCS
Audi A3 1997 ➤
Electrical system - Edition 10.2003
2.5 - Assignment of contacts at multi-pin connectors at dash panel insert
63