26-Point Connector (Yellow), Identification

26-point connector (yellow) on instrument cluster, identification



1 - plus (+) connection from light switch to instrument panel light rheostat
2 - negative (-) connection to coolant temperature gauge
3 - Audi 80:
plus (+) connection to Auto-Check button, coolant temperature warning light, tachometer
Audi 90, Coupe:
plus (+) connection to clock light 4 - plus (+) connection, connected to pin 1
5 - plus (+) connection to instrument panel rheostat
6 - not used
7 - not used
8 - Audi 80:
negative (-) connected to instrument panel lights, clock reset button, turn signal indicators, left and right, Auto-Check display, tachometer, digital clock
Audi 90, Coupe:
negative (-) connected to instrument panel lights, turn signal indicators, left and right, tachometer, digital clock light, digital cock
9 - plus (+) connection to flashers
10 - negative (-) connection to overheat warning light
11 - negative (-) connection to brake warning light
12 - not used
13 - negative (-) connection to alternator warning light, Auto-Check display, coolant temperature warning light, brake warning light
14 - not used
15 - not used
16 - not used
17 - not used
18 - not used
19 - plus (+) connection (30al) to clock
20 - not used
21 - not used
22 - input signal, for tachometer
23 - negative (-) connection coding for tachometer (5 cylinder only)
24 - negative (-) connection to oil pressure warning light
25 - negative (-) connection to park brake warning indicator
26 - Audi 80:
negative (-) connection to brake fluid level warning light
Audi 90, Coupe:
not used