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GM Truck Speedometer CLuster Sales & Service  

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89-94 S-10 Digital Cluster Schematic & Pinout

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Here is a pinout Looking at the 34 pin connector on the back of the dash cluster.

 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

 
 1 Temperature Sensor Input

 2 Oil Pressure Input

 3 Not Used

 4 Tach Input

 5 Not Used

 6 Park Lamp Input

 7 Right Turn Signal

 8 Left Turn Signal

 9 Signal Ground

10 Voltage Input

11 Speed Sensor Input

12 Fuel Sensor Input

13 Panel lamp Input

14 Service Engine Soon Light

15 Ignition 1

16 Brake Warning Light

17 High Beam Warning Light

18 Ignition 3

19 Ignition 3

20 Not Used

21 Battery Feed

22 Not Used

23 Not Used

24 Ground

25 Not Used

26 Not Used

27 Not Used

28 Not Used

29 Check Fluids Warning Light

30 Cruise Warning Light

31 UpShift Warning Light

32 Running Lights Warning Light

33 Anti-lock Warning Light

34 Fasten Belts Warning Light