For 1990-2009 cars

Connector 1: | Ambient Air Temperature Sensor
Connector 2: | Engine Oil Pressure (EOP) Switch
Connector 3: | Fuel Pump and Sender Assembly
Connector 4: | Instrument Panel Cluster (IPC)

### Ambient Air Temperature Sensor

#### Connector Part Information

- OEM: 12052642
- Service: 12101856
- Description: 2-Way F Metri-Pack 150 Series Sealed (GN)

#### Terminal Part Information

- Terminal/Tray: 12048074/2
- Core/Insulation Crimp: E/1
- Release Tool/Test Probe: 12094429/J-35616-2A (GY)

#### Ambient Air Temperature Sensor

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | D-GN/WH | 636 | Ambient Air Temperature Sensor Signal
B | YE/BK | 61 | Low Reference

### Engine Oil Pressure (EOP) Switch

#### Connector Part Information

- OEM: 12065299
- Service: 12085500
- Description: 1-Way F Metri-Pack 150 Series Sealed (L-GY)

#### Terminal Part Information

- Terminal/Tray: 12048074/2
- Core/Insulation Crimp: E/1
- Release Tool/Test Probe: 12094429/J-35616-2A (GY)

#### Engine Oil Pressure (EOP) Switch

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | TN/BK | 231 | Oil Pressure Switch Signal

### Fuel Pump and Sender Assembly

#### Connector Part Information

- OEM: 15326631
- Service: 15306360
- Description: 4-Way F AMP (BK)

#### Terminal Part Information

- Terminal/Tray: See Terminal Repair Kit
- Core/Insulation Crimp: See Terminal Repair Kit
- Release Tool/Test Probe: See Terminal Repair Kit

#### Fuel Pump and Sender Assembly

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | BK | 120 | Ground
B | GY | 120 | Fuel Pump Supply Voltage
C | PU | 1589 | Fuel Level Sensor Signal
D | TN | 2759 | Fuel Level Sensor low Reference

### Instrument Panel Cluster (IPC)

#### Connector Part Information

- OEM: 15429805
- Service: 89047195
- Description: 16-Way F Micro 64 (GY)

#### Terminal Part Information

- Terminal/Tray: 15359541/4
- Core/Insulation Crimp: M/M
- Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

#### Instrument Panel Cluster (IPC)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1-4 | -- | -- | Not Used
5 | D-GN/WH | 1358 | DIC Switch Signal
6 | BN/WH | 419 | MIL Control
7 | -- | -- | Not Used
8 | GY | 8 | Instrument Panel Lamp Supply Voltage
9 | D-GN | 5060 | Low Speed GMLAN Serial Data
10 | -- | -- | Not Used
11 | PK | 339 | Ignition 1 Voltage
12 | -- | -- | Not Used
13 | RD/WH | 1440 | Battery Positive Voltage
14 | D-GN | 264 | Security Indicator Supply Voltage
15 | BK/WH | 1051 | Ground
16 | BK | 550 | Ground