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.
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HOMESERVICE MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 417 (COMPONENT LOCATIONS & COMPONENT CONNECTOR END VIEWS)
2008 Pontiac Grand Prix Base
Section 417 (Component Locations & Component Connector End Views)
2008 Pontiac Grand Prix BaseSECTION Section 417 (Component Locations & Component Connector End Views)
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- Door Component Views
- Luggage Compartment/Rear of Vehicle Component Views
- Wheels/Vehicle Underbody Component Views
- Electrical Center Identification Views
- Fuse Block - Underhood - Label
- Fuse Block - Underhood - Top View
- Fuse Block - Underhood - Bottom View
- Fuse Block - Underhood X1
- Fuse Block - Underhood X2
- Fuse Block - Underhood X3
- Fuse Block - Underhood X4
- Fuse Block - Instrument Panel - Label
- Fuse Block - Instrument Panel - Top View
- Fuse Block - Instrument Panel - Bottom View
- Fuse Block - Instrument Panel - X1
- Fuse Block - Instrument Panel - X2
- Component Connector End Views
- 1-2 Shift Solenoid (1-2 SS) Valve
- 2-3 Shift Solenoid (2-3 SS) Valve
- A/C Compressor Clutch (C67)
- A/C Compressor Clutch (CJ2)
- A/C Refrigerant Pressure Sensor (L26+C67)
- A/C Refrigerant Pressure Sensor (LS4+C67)
- A/C Refrigerant Pressure Sensor (L26+CJ2)
- A/C Refrigerant Pressure Sensor (LS4+CJ2)
- A/C Refrigerant Pressure Sensor (LY7+C67)
- A/C Refrigerant Pressure Sensor (LY7+CJ2)
- A/T Shift Lock Control Solenoid (-D55)
- Accelerator Pedal Position (APP) Sensor
- Air Temperature Actuator (C67)
- Air Temperature Actuator - Left (CJ2)
- Air Temperature Actuator - Right (CJ2)
- Air Temperature Sensor - Inside (CJ2)
- Air Temperature Sensor - Lower Left (CJ2)
- Air Temperature Sensor - Lower Right (CJ2)
- Air Temperature Sensor - Upper Left (CJ2)
- Air Temperature Sensor - Upper Right (CJ2)
- Ambient Air Temperature Sensor
- Ambient Light Sensor (C67)
- Audio Amplifier X1 (U88)
- Audio Amplifier X2 (U88)
- Audio Amplifier X3 (U88)
- Automatic Transaxle Fluid Temperature (TFT) Sensor
- Automatic Transmission Fluid Pressure Manual Valve Position Switch
- Automatic Transmission Input Shaft Speed (A/T ISS) Sensor
- Auxiliary Power Outlet
- Backup Lamp - Left
- Backup Lamp - Right
- Battery Current Sensor
- Blower Motor (C67)
- Blower Motor (CJ2)
- Blower Motor Control Processor (C67)
- Blower Motor Control Processor (CJ2)
- Body Control Module (BCM) X1
- Body Control Module (BCM) X2
- Body Control Module (BCM) X3
- Brake Booster Vacuum Sensor (LS4)
- Brake Fluid Level Switch
- Brake Fluid Pressure Sensor (JL4/JL9)
- Brake Pedal Position Sensor
- Camshaft Position (CMP) Actuator Solenoid Exhaust Bank 1 (LY7)
- Camshaft Position (CMP) Actuator Solenoid Intake Bank 1 (LY7)
- Camshaft Position (CMP) Actuator Solenoid Exhaust Bank 2 (LY7)
- Camshaft Position (CMP) Actuator Solenoid Intake Bank 2 (LY7)
- Camshaft Position (CMP) Sensor (L26)
- Camshaft Position (CMP) Sensor (LS4)
- Camshaft Position (CMP) Sensor Bank 1 Exhaust (LY7)
- Camshaft Position (CMP) Sensor Bank 1 Intake (LY7)
- Camshaft Position (CMP) Sensor Bank 2 Exhaust (LY7)
- Camshaft Position (CMP) Sensor Bank 2 Intake (LY7)
- Center High Mounted Stop Lamp (CHMSL)
- Cigar Lighter
- Cooling Fan - Left
- Cooling Fan - Right
- Crankshaft Position (CKP) Sensor (L26)
- Crankshaft Position (CKP) Sensor (LS4)
- Crankshaft Position (CKP) Sensor (LY7)
- Cruise Control Switch
- Data Link Connector (DLC)
- Digital Radio Antenna (U2K)
- Digital Radio Receiver (U2K)
- Dome/Reading Lamp - Left
- Dome/Reading Lamp - Right
- Door Lock - Driver
- Door Lock - Front Passenger
- Door Lock - Left Rear
- Door Lock - Right Rear
- Door Lock Switch - Driver
- Door Lock Switch - Front Passenger
- Driver Information Center (DIC)
- Electronic Brake Control Module (EBCM) X1
- Electronic Brake Control Module (EBCM) X2
- Electronic Compass Module
- Engine Control Module (ECM) X1 (LS4)
- Engine Control Module (ECM) X1 (LY7)
- Engine Control Module (ECM) X2 (LS4)
- Engine Control Module (ECM) X2 (LY7)
- Engine Control Module (ECM) X3 (LS4)
- Engine Coolant Temperature (ECT) Sensor (L26)
- Engine Coolant Temperature (ECT) Sensor (LS4)
- Engine Coolant Temperature (ECT) Sensor (LY7)
- Engine Oil Level Switch (L26)
- Engine Oil Pressure (EOP) Sensor (LY7)
- Engine Oil Pressure (EOP) Switch (L26)
- Engine Oil Pressure (EOP) Switch (LS4)
- Evaporative Emission (EVAP) Canister Purge Solenoid Valve (L26)
- Evaporative Emission (EVAP) Canister Purge Solenoid Valve (LS4)
- Evaporative Emission (EVAP) Canister Purge Solenoid Valve (LY7)
- Evaporative Emission (EVAP) Canister Vent Solenoid Valve (L26)
- Evaporative Emissions (EVAP) Canister Vent Solenoid Valve (LS4)
- Evaporative Emission (EVAP) Canister Vent Solenoid Valve (LY7)
- Exhaust Gas Recirculation (EGR) Valve (L26)
- Fog Lamp - Left (T96)
- Fog Lamp - Right (T96)
- Fuel Injector 1 (L26)
- Fuel Injector 1 (LS4)
- Fuel Injector 1 (LY7)
- Fuel Injector 2 (L26)
- Fuel Injector 2 (LS4)
- Fuel Injector 2 (LY7)
- Fuel Injector 3 (L26)
- Fuel Injector 3 (LS4)
- Fuel Injector 3 (LY7)
- Fuel Injector 4 (L26)
- Fuel Injector 4 (LS4)
- Fuel Injector 4 (LY7)
- Fuel Injector 5 (L26)
- Fuel Injector 5 (LS4)
- Fuel Injector 5 (LY7)
- Fuel Injector 6 (L26)
- Fuel Injector 6 (LS4)
- Fuel Injector 6 (LY7)
- Fuel Injector 7 (LS4)
- Fuel Injector 8 (LS4)
- Fuel Pump and Sender Assembly (L26)
- Fuel Pump and Sender Assembly (LY7)
- Fuel Tank Pressure (FTP) Sensor (L26)
- Fuel Tank Pressure (FTP) Sensor (LY7)
- Garage Door Opener
- Generator (L26)
- Generator (LY7)
- Headlamp - High Beam - Left
- Headlamp - High Beam - Right
- Headlamp - Low Beam - Left
- Headlamp - Low Beam - Right
- Heated Oxygen Sensor (HO2S) 1 (L26- NU6)
- Heated Oxygen Sensor (HO2S) 1 (L26+NU6)
- Heated Oxygen Sensor (HO2S) 1 (LS4)
- Heated Oxygen Sensor (HO2S) 1 (LY7)
- Heated Oxygen Sensor (HO2S) 2 (L26)
- Heated Oxygen Sensor (HO2S) 2 (LS4)
- Heated Oxygen Sensor (HO2S) 2 (LY7)
- Heated Seat Element - Driver Back (KA1)
- Heated Seat Element - Driver Cushion (KA1)
- Heated Seat Element - Passenger Back (KA1)
- Heated Seat Element - Passenger Cushion (KA1)
- Heated Seat Relay - Driver (KA1)
- Heated Seat Relay - Passenger (KA1)
- HVAC Control Module (C67)
- HVAC Control Module X1 (CJ2)
- HVAC Control Module X2 (CJ2)
- Hood Ajar Switch (AP3/AP8)
- Horn Assembly
- Ignition Coil 1 (LS4)
- Ignition Coil 1 (LY7)
- Ignition Coil 2 (LS4)
- Ignition Coil 2 (LY7)
- Ignition Coil 3 (LS4)
- Ignition Coil 3 (LY7)
- Ignition Coil 4 (LS4)
- Ignition Coil 4 (LY7)
- Ignition Coil 5 (LS4)
- Ignition Coil 5 (LY7)
- Ignition Coil 6 (LS4)
- Ignition Coil 6 (LY7)
- Ignition Coil 7 (LS4)
- Ignition Coil 8 (LS4)
- Ignition Control Module (ICM) (L26)
- Ignition Lock Control Actuator (D55)
- Ignition Switch
- Inflatable Restraint Passenger Air Bag ON/OFF Indicator
- Inflatable Restraint Front End Sensor - Left
- Inflatable Restraint Front End Sensor - Right
- Inflatable Restraint Front Passenger Presence System (PPS) Module X1
- Inflatable Restraint Front Passenger Presence System (PPS) Module X2
- Inflatable Restraint Instrument Panel Module X1
- Inflatable Restraint Instrument Panel Module X2
- Inflatable Restraint Roof Rail Module - Left (AY1)
- Inflatable Restraint Roof Rail Module - Right (AY1)
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Inflatable Restraint Side Impact Sensor - Left (AY1)
- Inflatable Restraint Side Impact Sensor - Right (AY1)
- Inflatable Restraint Steering Wheel Module X1
- Inflatable Restraint Steering Wheel Module X2
- Inside Rearview Mirror (UE1)
- Instrument Panel Cluster (IPC)
- Instrument Panel Compartment Lamp Switch
- Instrument Panel Courtesy Lamp - Left
- Instrument Panel Courtesy Lamp - Right
- Knock Sensor (KS) 1 (L26)
- Knock Sensor (KS) 1 (LS4)
- Knock Sensor (KS) 1 (LY7)
- Knock Sensor (KS) 2 (L26)
- Knock Sensor (KS) 2 (LS4)
- Knock Sensor (KS) 2 (LY7)
- Lamp Assembly Switch
- License Lamp - Left
- License Lamp - Right
- Magnasteer Actuator (LY7)
- Manifold Absolute Pressure (MAP) Sensor (L26)
- Manifold Absolute Pressure (MAP) Sensor (LS4)
- Manifold Absolute Pressure (MAP) Sensor (LY7)
- Marker Lamp - Left Front
- Marker Lamp - Left Rear
- Marker Lamp - Right Front
- Marker Lamp - Right Rear
- Mass Airflow (MAF)/Intake Air Temperature (IAT) Sensor (L26)
- Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor (LS4)
- Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor (LY7)
- Mode Actuator (C67)
- Mode Actuator (CJ2)
- Object Sensor - Left Rear Corner
- Object Sensor - Left Rear Middle
- Object Sensor - Right Rear Corner
- Object Sensor - Right Rear Middle
- Outside Rearview Mirror Motor - Driver
- Outside Rearview Mirror Motor - Passenger
- Outside Rearview Mirror Switch
- Park Brake Switch
- Park/Turn Signal Lamp - Left Front
- Park/Turn Signal Lamp - Right Front
- Powertrain Control Module (PCM) X1 (L26+NU6)
- Powertrain Control Module (PCM) X1 (L26-NU6)
- Powertrain Control Module (PCM) X2 (L26+NU6)
- Powertrain Control Module (PCM) X2 (L26-NU6)
- Powertrain Control Module (PCM) X3 (L26+NU6)
- Powertrain Control Module (PCM) X3 (L26-NU6)
- Pressure Control Solenoid (PC SOL) Valve
- PRNDL Lamp
- Radio Antenna Module
- Radio X1
- Radio X2
- Rear Compartment Courtesy Lamp
- Rear Compartment Lid Latch
- Rear Object Sensor Control Module
- Rear Parking Assist (RPA) Display
- Rear Parking Assist (RPA) Diagnostic Connector
- Rear Window Defogger Grid X1
- Rear Window Defogger Grid X2
- Recirculation Actuator (C67)
- Recirculation Actuator (CJ2)
- Remote Control Door Lock Receiver (RCDLR)
- Seat Adjuster Motor Assembly - Driver (AG1)
- Seat Adjuster Motor Assembly - Passenger (AG2)
- Seat Adjuster Switch - Driver (AG1)
- Seat Adjuster Switch - Passenger (AG2)
- Seat Belt Pretensioner - Left
- Seat Belt Pretensioner - Right
- Seat Belt Switch - Driver
- Seat Belt Switch - Passenger
- Seat Lumbar Motor - Driver (AL9)
- Seat Lumbar Switch - Driver (AL9)
- Secondary Air Injection (AIR) Control Solenoid Valve/Pressure Sensor, Bank 2 (L26+NU6)
- Secondary Air Injection (AIR) Pump (L26+NU6)
- Secondary Air Injection (AIR) Pump Relay (L26+NU6)
- Secondary Air Injection (AIR) Solenoid Relay (L26+NU6)
- Speaker - Center (U88)
- Speaker - Left Front Door
- Speaker - Left Front Tweeter
- Speaker - Left Rear (UW6)
- Speaker - Left Rear (U88)
- Speaker - Right Front Door
- Speaker - Right Front Tweeter
- Speaker - Right Rear (UW6)
- Speaker - Right Rear (U88)
- Starter (LY7)
- Steering Angle Sensor (JL4/JL9)
- Steering Wheel Controls - Left (UK3)
- Steering Wheel Controls - Right (UK3)
- Sunload Sensor Assembly (CJ2)
- Sunroof Switch
- Sunroof Motor
- Tail Lamp - Left Lower
- Tail Lamp - Left Upper
- Tail Lamp - Right Lower
- Tail Lamp - Right Upper
- Tail/Stop and Turn Signal Lamp - Left
- Tail/Stop and Turn Signal Lamp - Right
- Theft Deterrent Exciter Module
- Theft LED
- Throttle Actuator Control (TAC) Module (L26)
- Throttle Actuator Control (TAC) Module (LS4)
- Throttle Actuator Control (TAC) Module (LY7)
- Torque Converter Clutch (TCC) Solenoid Valve
- Transmission Control Module (TCM) (LS4)
- Transmission Control Module (TCM) (LY7)
- Transmission Internal Mode Switch (IMS)
- Turn Signal/Multifunction Switch X1
- Turn Signal/Multifunction Switch X2
- Turn Signal/Multifunction Switch X3
- Valve Lifter Oil Manifold (VLOM) Assembly (LS4)
- Vanity Mirror Lamp - Left (DH6)
- Vanity Mirror Lamp - Right (DH6)
- Vehicle Communication Interface Module (VCIM) X1
- Vehicle Communication Interface Module (VCIM) X2
- Vehicle Speed Sensor (VSS) (LY7)
- Vehicle Speed Sensor (VSS) (L26)
- Voice Recorder/Cruise Switch Assembly
- Wheel Speed Sensor (WSS) - Left Front
- Wheel Speed Sensor (WSS) - Left Rear
- Wheel Speed Sensor (WSS) - Right Front
- Wheel Speed Sensor (WSS) - Right Rear
- Window Motor - Driver
- Window Motor - Front Passenger
- Window Motor - Left Rear
- Window Motor - Right Rear
- Window Switch - Driver X1
- Window Switch - Driver X2
- Window Switch - Front Passenger
- Window Switch - Left Rear
- Window Switch - Right Rear
- Windshield Washer Fluid Level Switch
- Windshield Washer Fluid Pump
- Windshield Wiper Motor
- Yaw and Lateral Acceleration Sensor (JL4/JL9)
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.