Pin out for Monte Carlo instrument cluster connector
| Pin # | Circuit # | Color | Connects to |
| 1 | 25 | BRN | Alt lamp or Volt gauge |
| 2 | 31 | TAN | Oil Press lamp or Oil Press Gauge |
| 3 | 35 | DK GRN | Temp lamp or Temp gauge |
| 4 | 30 | PNK | Fuel Gauge |
| 5 | 8 | GRA | Dash Lights (Illum) |
| 6 | 14 | LT BLU | Left Turn Signal |
| 7 | open | ||
| 8 | 15 | DK BLU | Right Turn Signal |
| 9 | 150 | BLK | Ground |
| 10 | 489 | YEL | SES (Check Engine) lamp |
| 11 | 39 | PNK/BLK | +12 volts (from 20 amp Gauges fuse) |
| 12 | 11 | LT GRN | Bright Light lamp |
| 13 | 237 | YEL | Seat Belt lamp |
| 14 | 931 | DK GRN/WHT | Choke lamp |
| 15 | 33 | TAN/WHT | Brake lamp |
| 16 | 39 | PNK/BLK | +12 volts (from 20 amp Gauges fuse) |
| 17 | 121 | WHT | Tach signal |
| 18 | 40 | ORN | Clock supply voltage (always hot) |