Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2005 Pontiac Vibe GTFACTORY OEM SERVICE PROCEDURE
Engine Controls Connector End Views
Identifying Ambient Air Temperature Sensor Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK | Ambient Air Temperature Sensor Input |
| 2 | BK/BU | Ground |
Identifying Backup Lamp Switch Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | RD/BK | Backup Lamp Switch Signal Circuit |
| 2 | RD/WH | Backup Lamp Switch Feed Circuit |
Identifying Camshaft Position (CMP) Sensor Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK | Camshaft Position Input |
| 2 | WH | Sensor Ground |
Identifying Camshaft Position (CMP) Actuator Solenoid Valve Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | YE | CMP Actuator High Control |
| 2 | BK/YE | CMP Actuator Low Control |
Identifying Circuit Opening Relay Connector
| Connector Part Information | - | |
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK | Relay Coil Supply Voltage |
| 2 | GN/RD | Relay Coil Control |
| 3 | BK/RD | Switch Fuel Pump |
| 5 | WH/BK | Switch Supply Voltage |
Identifying Clutch Pedal Position (CPP) Switch Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | RD | CPP Feed Circuit |
| 2 | BK | CPP Signal Circuit |
Identifying Crankshaft Position (CKP) Sensor Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK | Crankshaft Position Input |
| 2 | WH | Sensor Ground |
Identifying Engine Coolant Temperature (ECT) Sensor Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BN | Sensor Ground |
| 2 | WH | ECT Input |
Identifying EFI Relay Connector
| Connector Part Information | - | |
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK/WH | Relay Coil Supply Voltage |
| 2 | WH/BK | Relay Coil Control |
| 3 | BK | Switch Load |
| 5 | RD/WH | Switch Supply Voltage |
Identifying EVAP Purge Solenoid Valve Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BU/BK | EVAP Control Circuit |
| 2 | BK | EVAP Feed Circuit |
Identifying EVAP System Vacuum Leak Pump Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | GY | Vacuum Pump Control |
| 2 | BN | Sensor Ground |
| 3 | BU | Fuel Tank Pressure (FTP) Input |
| 4 | YE | 5-Volt Reference |
| 5 | - | Not Used |
| 6 | WH/BK | Ground |
| 7 | - | Not Used |
| 8 | RD | EVAP Vent Solenoid Control |
| 9 | BK | EVAP Vent Solenoid Supply Voltage |
| 10 | - | Not Used |
Identifying Auxiliary Intake Air Solenoid Valve Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BU/WH | Ignition Positive Voltage |
| 2 | BK | Solenoid Control Circuit |
Identifying Fuel Injector #1 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK/WH | Fuel Injector #1 Feed Circuit |
| 2 | YE | Fuel Injector #1 Control Circuit |
Identifying Fuel Injector #2 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK/WH | Fuel Injector #2 Feed Circuit |
| 2 | BK | Fuel Injector #2 Control Circuit |
Identifying Fuel Injector #3 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK/WH | Fuel Injector #3 Feed Circuit |
| 2 | WT | Fuel Injector #3 Control Circuit |
Identifying Fuel Injector #4 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK/WH | Fuel Injector #4 Control Circuit |
| 2 | BU | Fuel Injector #4 Feed Circuit |
Identifying Fuel Sender Assembly Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | - | Not Used |
| 2 | YE | Fuel Gage |
| 3 | BN | Low Fuel Indicator |
| 4 | BK/RD | Fuel Pump Feed Circuit |
| 5 | WH/BK | Ground |
Identifying Heated Oxygen Sensor (HO2S) 1 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK | HO2S1 Heater Feed Circuit |
| 2 | PK | HO2S1 Heater Control Circuit |
| 3 | BN | Ground |
| 4 | RD | HO2S1 Input |
Identifying Heated Oxygen Sensor (HO2S) 2 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK | HO2S2 Heater Feed Circuit |
| 2 | PK/BK | HO2S2 Heater Control Circuit |
| 3 | BN | Ground |
| 4 | WH | HO2S2 Input Circuit |
Identifying Idle Air Control (IAC) Motor Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK/BU | IAC Valve Open Control |
| 2 | BK | IAC Feed Circuit |
| 3 | WH/BK | Ground |
Identifying Ignition Coil 1 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK/WH | Ignition Coil Feed Circuit |
| 2 | BU/YE | Ignition Fail Safe Input |
| 3 | RD/BU | Ignition Trigger Circuit |
| 4 | WH/BK | Ground |
Identifying Ignition Coil 2 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK/WH | Ignition Coil Feed Circuit |
| 2 | BU/YE | Ignition Fail Safe Input |
| 3 | YE/GN | Ignition Trigger Circuit |
| 4 | WH/BK | Ground |
Identifying Ignition Coil 3 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK/WH | Ignition Coil Feed Circuit |
| 2 | BU/YE | Ignition Fail Safe Input |
| 3 | GY | Ignition Trigger Circuit |
| 4 | WH/BK | Ground |
Identifying Ignition Coil 4 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK/WH | Ignition Coil Feed Circuit |
| 2 | BU/YE | Ignition Fail Safe Input |
| 3 | WH | Ignition Trigger Circuit |
| 4 | WH/BK | Ground |
Identifying Knock Sensor (KS) Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | WH | KS Signal Low |
| 2 | BK | KS Signal High |
Identifying Mass Air Flow (MAF) Sensor Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK | MAF Feed Circuit |
| 2 | BU/WH | MAF Signal Low |
| 3 | GN | MAF Signal High |
| 4 | YE/BK | IAT Sensor Input |
| 5 | BN | Sensor Ground |
Identifying Noise Filter Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK/WH | Noise Filter Feed Circuit |
| 2 | - | Not Used |
Identifying PCM Connector C1 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | YE | Fuel Injector 1 Control |
| 2 | BK | Fuel Injector 2 Control |
| 3 | WH | Fuel Injector 3 Control |
| 4 | BU | Fuel Injector 4 Control |
| 5 | BN | Ground |
| 6 | WH/BK | Ground |
| 7 | WH/BK | Ground |
| 8 | RD/BU | Ignition Trigger Signal Coil 1 |
| 9 | YE/GN | Ignition Trigger Signal Coil 2 |
| 10 | GY | Ignition Trigger Signal Coil 3 |
| 11 | WH | Ignition Trigger Signal Coil 4 |
| 12 | BK | Crank Signal |
| 13 | BK/YE | Camshaft Position (CMP) Actuator Solenoid Valve High Control |
| 14 | YE | Camshaft Position (CMP) Actuator Solenoid Valve Control Low |
| 15 | BU/WH | Auxiliary Intake Air Control Solenoid Control |
| 16 | BK/BU | Idle Air Control (IAC) Valve Control |
| 17 | - | Not Used |
| 18 | YE | 5-Volt Reference Circuit |
| 19 | WH | Engine Coolant Temperature (ECT) Sensor Input |
| 20 | YE/BK | Intake Air Temperature (IAT) Sensor Input |
| 21 | L-GN | Throttle Position (TP) Sensor Input |
| 22-23 | - | Not Used |
| 24 | BU/YE | Ignition Fail Safe Input |
| 25 | RD | EVAP Canister Vent Solenoid Valve Control |
| 26 | BK | Camshaft Position (CMP) Sensor Input |
| 27 | BK | Crankshaft Position (CKP) Sensor Input |
| 28 | BN | Sensor Ground |
| 29 | BU/WH | Mass Air Flow (MAF) Sensor Signal Low |
| 30 | GN | Mass Air Flow (MAF) Sensor Signal High |
| 31-33 | - | Not Used |
| 34 | WH | CMP Sensor and CKP Sensor Ground |
Identifying PCM Connector C2 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK | Knock Sensor (KS) Signal High |
| 2 | WH | Knock Sensor (KS) Signal Low |
| 3-5 | - | Not Used |
| 6 | PK | Heated Oxygen Sensor (HO2S) 1 Heater Circuit Control |
| 7 | WH/BK | Ground |
| 8 | GY | EVAP Vacuum Leak Pump Control |
| 9 | L-GN/BK | Fan 2 Relay Control |
| 10-15 | - | Not Used |
| 16 | BU/YE | Rocker Arm Oil Control Solenoid Valve Control High |
| 17 | BK | Rocker Arm Oil Control Solenoid Valve Control Low |
| 18 | - | Not Used |
| 19 | BU/BK | EVAP Canister Purge Solenoid Valve Control |
| 20 | - | Not Used |
| 21 | L-GN | Fan 1 Relay Control |
| 22 | RD | Heated Oxygen Sensor (HO2S) 1 Input |
| 23-26 | - | Not Used |
| 27 | YE | AC Pressure Switch |
| 28 | WH/BK | Ground |
| 29 | - | Not Used |
| 30 | BU/RD | Power Steering Pressure (PSP) Switch Input |
| 31-35 | - | Not Used |
Identifying PCM Connector C3 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1-2 | - | Not Used |
| 3 | BK | Engine Speed Output |
| 4 | BK/WH | EFI Relay High Control |
| 5 | YE/BK | AC Compressor Clutch Relay Control |
| 6-7 | - | Not Used |
| 8 | BU/WH | Cruise Control Idle |
| 9-13 | - | Not Used |
| 14 | YE/RD | Engine Coolant Temperature Gage Output |
| 15 | BU/RD | Serial Data |
| 16 | GN/RD | Circuit Opening Relay Control |
| 17 | PU/WH | Vehicle Speed Sensor (VSS) Input |
| 18 | - | Not Used |
| 19 | GN/WH | Brake Switch Signal |
| 20-22 | - | Not Used |
| 23 | WH | Heated Oxygen Sensor (HO2S) 2 Input |
| 24-30 | - | Not Used |
| 31 | BK/WH | Rocker Arm Oil Pressure Switch Input |
| 32 | BK/BU | Evaporator Temperature Sensor Input |
| 33 | GN/WH | AC On Signal |
| 34 | GN | Secondary AIR Pressure Sensor Input |
| 35 | - | Not Used |
Identifying PCM Connector C4 Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK | Ignition Positive Voltage |
| 2 | - | Not Used |
| 3 | RD/WH | Battery Voltage |
| 4 | BK/BU | Secondary AIR Solenoid Valve Control |
| 5 | BK/OG | Secondary AIR Pump Relay Control |
| 6 | - | Not Used |
| 7 | PK/BK | Heated Oxygen Sensor (HO2S) 2 Heater Circuit Control |
| 8 | - | Not Used |
| 9 | BK/OG | Ignition Positive Voltage |
| 10 | YE | AC Request Signal |
| 11 | RD/YE | MIL Control |
| 12 | GN | Electrical Load Idle-Up Signal, Tail Lamps |
| 13 | WH | Electrical Load Idle-Up Signal, Rear Defogger |
| 14 | YE | Supplemental Inflatable Restraint (SIR) System Signal |
| 15-18 | - | Not Used |
| 19 | PK | Data Link Connector (DLC) |
| 20 | PK/BK | Diagnostic Request Circuit |
| 21 | BU | Fuel Tank Pressure (FTP) Sensor Input |
| 22-31 | - | Not Used |
Identifying Rocker Arm Oil Control Valve Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK | Solenoid Control Low |
| 2 | WH | Solenoid Control Low |
Identifying Secondary Air Injection (AIR) Pump Motor Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| A | BK/RD | Supply Voltage |
| B | WH/BK | Ground |
Identifying Secondary AIR Pump Relay Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK/OG | Relay Coil Control |
| 2 | BK | Relay Coil Supply Voltage |
| 3 | BK/RD | Switch AIR Pump Motor |
| 4 | BK | Switch Supply Voltage |
Identifying Secondary AIR Pump Pressure Sensor Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BN | Ground |
| 2 | L-GN | Powertrain Control Module Signal |
| 3 | YE | 5-Volt Reference |
Identifying Secondary AIR Pump Solenoid Valve Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK | Supply Voltage |
| 2 | BK/BU | Powertrain Control Module Signal |
Identifying Throttle Position (TP) Sensor Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BN | Sensor Ground |
| 2 | YE | Reference Voltage |
| 3 | L-GN | Throttle Position Input |
Identifying Vehicle Speed Sensor (VSS) Connector
| Connector Part Information |
|
|
|---|---|---|
| Pin | Wire Color | Function |
| 1 | BK | Sensor Ground |
| 2 | WH | VSS Input |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
