For 1990-2009 cars

Table 1: | C1
Table 2: | Instrument Panel Cluster -- Buick And Oldsmobile
Table 3: | Instrument Panel Cluster -- Pontiac Only
Table 4: | Sensing Diagnostic Module (SDM)

#### C1

Connector Part Information |

• | 12160707

• | 22-Way (GRY)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | PNK | 539 | Fuse Output - Ignition 1 - Type III Fuse
2 | ORN | 140 | Fuse Output - Battery - Type III Fuse
3 | BRN | 27 | Hazard Flasher Output
4 | PPL | 16 | Turn Signal Flasher Output
5 | BLK | 150 | Ground
A | DK GRN/WHT | 817 | Vehicle Speed Signal - 4000 Pulses/Mile
B | -- | -- | Not Used
C | PPL | 16 | Turn Signal Flasher Output
D | BRN | 9 | Park Lamp Feed
E | LT GRN | 80 | Key Reminder Switch Signal
F | LT BLU | 292 | Rear Defogger Switch Signal - Primary
G | LT BLU | 395 | Door Handle Switch Signal - Right Front
H | LT GRN/BLK | 394 | Door Handle Switch Signal - Left Front
J | ORN/BLK | 17866 | Transaxle Park/Neutral Signal
K | BLK/WHT | 238 | Seat Belt Switch Signal
L | PPL | 681 | Rear Defogger Switch Signal - Secondary
M | PNK | 39 | Fuse Output - Ignition 1 - Type III Fuse
N | BRN | 994 | Automatic Door Lock/Unlock Power Feed
P | LT BLU | 195 | Power Door Lock Relay Feed - Lock Coil
R | ORN | 1640 | Fuse Output - Battery - Type III Fuse
S | BLK | 28 | Horn Relay Output - Coil
T | DK GRN | 29 | Horn Feed

#### Instrument Panel Cluster -- Buick And Oldsmobile

Connector Part Information |

• | 12045575

• | 32-Way F Micro-Pack Series 100 Instrument Panel Cluster (BLK)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
C1 | GRA | 8 | Instrument Panel Lamp Feed
C2 | -- | -- | Not Used
C3 | WHT | 1459 | Magnetic Rotation Detection Ignition Key Cylinder Sensor Feed -12 Volt Reference
C4 | -- | -- | Not Used
C5 | YEL | 1836 | Magnetic Rotation Detection Sensor Signal
C6 | BLK | 1835 | Magnetic Rotation Detection Sensor Return
C7 | BLK | 1350 | Ground
C8 | TAN | 800 | Serial Data Signal - UART - 8192 BAUD - Primary
C9 | -- | -- | Not Used
C10 | BLK | 150 | Ground
C11 | PNK | 1020 | Fuse Output - Off, Run, Crank - Type III Fuse
C12 | WHT | 991 | Automatic Lamp Control Relay Ground
C13 | GRN LT/BLK | 592 | Daytime Running Lamp Relay Output - Coil
C14 | ORN | 1440 | Fuse Output - Battery - Type III Fuse
C15 | BLK/WHT | 451 | Engine Control Module Ground
C16 | BLU LT | 1134 | Park Brake Switch Signal
D1 | PPL | 30 | Fuel Gage Sensor Signal
D2 | GRN LT | 11 | High Beam Headlamp Feed
D3 | TAN | 12 | Low Beam Headlamp Feed
D4 | GRN DK/WHT | 817 | Vehicle Speed Signal - 4000 Pulses/Mile
D5-D6 | -- | -- | Not Used
D7 | BLU DK | 15 | Turn Signal Lamp Feed - Right Front
D8 | BLU LT | 15 | Turn Signal Lamp Feed - Left Front
D9 | BRN/WHT | 419 | Check Engine Indicator Lamp Output
D10 | -- | -- | Not Used
D11 | GRN LT | 66 | Air Conditioning Switch Output
D12-D13 | -- | -- | Not Used
D14 | BRN/WHT | 1571 | Traction Control System Switch Signal
D15 | -- | -- | Not Used
D16 | TAN | 185 | Low Windshield Washer Fluid Indicator Lamp Output

#### Instrument Panel Cluster -- Pontiac Only

Connector Part Information |

• | 12045575

• | 32-Way F Micro-Pack Series 100 Instrument Panel Cluster (BLK)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
C1 | BLK | 1350 | Ground
C2 | LT GRN | 11 | High Beam Headlamp Feed
C3 | YEL | 1836 | Magnetic Rotation Detection Sensor Signal
C4 | -- | -- | Not Used
C5 | PPL | 30 | Fuel Gauge Sensor Signal
C6 | RED | 1789 | Catalytic Converter Temperature Sensor Signal
C7-C9 | -- | -- | Not Used
C10 | PNK | 1020 | Fuse Output - Off, Run, Crank -Type III Fuse
C11 | LT GRN/BLK | 592 | Daytime Running Lamp Relay Output - Coil
C12 | WHT | 991 | Automatic Lamp Control Relay Ground
C13 | -- | -- | Not Used
C14 | ORN | 1440 | Fuse Output - Battery - Type III Fuse
C15 | -- | -- | Not Used
C16 | GRY | 8 | Instrument Panel Lamp Feed
D1 | -- | -- | Not Used
D2 | TAN | 12 | Low Beam Headlamp Feed
D3 | DK GRN/WHT | 817 | Low Beam Headlamp Feed
D4 | WHT | 1459 | Magnetic Rotation Detection Device 12-Volt Feed
D5 | TAN | 800 | Serial Data Signal - UART - 8192 BAUD - Primary
D6 | BLU DK | 15 | Turn Signal Lamp Feed - Right Front
D7 | LT BLU | 14 | Turn Signal Lamp Feed - Left Front
D8 | BRN/WHT | 419 | Check Engine Indicator Lamp Output
D9 | -- | -- | Not Used
D10 | BRN/WHT | 1571 | Traction Control Switch Signal
D11 | LT BLU | 1134 | Park Brake Switch Signal
D12 | BLK | 1835 | Magnetic Rotation Detection Sensor Return
D13 | BLK/WHT | 451 | Engine Control Module Ground
D14 | LT GRN | 66 | A/C Switch Output
D15 | BLK | 150 | Ground
D16 | -- | -- | Not Used

#### Sensing Diagnostic Module (SDM)

Connector Part Information |

• | 12160342

• | 12-Way F Micro-Pack Series 100 (YEL)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | WHT/BLK | 1403 | SIR Inflator Feed-Passenger
2 | WHT | 347 | SIR Inflator Feed-Driver
3 | GRN DK | 348 | SIR Inflator Output-Driver
4 | GRN DK/WHT | 1404 | SIR Inflator Output-Passenger
5 | TAN | 800 | Serial Data Signal-UART-8192 Baud-Primary
6 | BLK/WHT | 1751 | SIR Ground
7 | -- | -- | Not Used
8 | BLK/WHT | 238 | Seat Belt Switch Signal
9 | YEL | 1834 | SIR Forward Sensor Signal
10 | YEL | 1139 | Fuse Output-Ignition 1-Type III Fuse-SIR
11 | -- | -- | Not Used
12 | -- | -- | Not Used