Harness Routing Views. Pontiac Grand Prix 1999

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 1999 🢒 Grand Prix 🢒 Engine 🢒 Engine Electrical 🢒 Harness Routing Views

Figure 1:

Left Rear Of Engine Compartment


(1)	Cruise Control Module
(2)	Brake Fluid Level Indicator Sensor

Figure 2:

Right Rear of Engine (VIN M)


(1)	C102
(2)	C108

Figure 3:

C101, C103, and C181


(1)	C103 IP Wiring Harness Female Connector
(2)	C101 Engine Wiring Harness Male Connector
(3)	Retainer Nut for C103
(4)	Connector Position Assurance (CPA) for C103
(5)	C103 Engine Wiring Harness Male Connector
(6)	C181 Engine Wiring Harness Male Connector
(7)	Stud
(8)	Connector Position Assurance (CPA) for C181
(9)	C181 I/P Wiring Harness Female Connector
(10)	C101 I/P Wiring Harness Female Connector

Figure 4:

Front of Engine Compartment (VIN M)


(1)	C105
(2)	RH Engine Coolant Fan Motor
(2)	RH Engine Coolant Fan Motor Connector
(3)	LH Engine Coolant Fan Motor

Figure 5:

Front of Engine Compartment (VIN 1, K)


(1)	RH Engine Coolant Fan Motor and Connector
(2)	C105
(3)	LH Engine Coolant Fan Motor

Figure 6:

Right Front Side of Engine (w/RPO L36,L67)


(1)	C110
(2)	Ignition Control Module (ICM) Wiring Harness
(3)	Ignition Control Module (ICM)
(4)	Crankshaft Position (CKP) Sensor

Figure 7:

Left Side Of Engine (VIN M)


(1)	C111

Figure 8:

Transaxle Range Switch -- LH Side of Engine (VIN 1, K)


(1)	Automatic Transaxle Connector C113
(2)	Transaxle Range Switch
(3)	Transaxle Range Switch C1
(4)	Transaxle Range Switch C2

Figure 9:

Right Front Of Engine Compartment


(1)	C120

Figure 10:

Lower Rear Side of Engine (w/RPO L36,L67)


(1)	Knock Sensor (KS) Bank 2
(2)	Knock Sensor (KS) Bank 2 -- Wiring Harness
(3)	C125

Figure 11:

Top Front of Engine


(1)	Manifold Absolute Pressure (MAP) Sensor
(2)	C110
(3)	C126
(4)	Fuel Injector 5 Connector
(5)	Engine Wiring Harness
(6)	Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
(7)	Fuel Injector 3
(8)	Fuel Injector 1
(9)	Ignition Control Module (ICM) Wiring Harness

Figure 12:

Front Of Vehicle


(1)	G101
(2)	C141
(3)	Fog Lamp Connector (LH)
(4)	Ambient Air Temperature Gauge Sensor
(5)	Fog Lamp Connector (RH)
(6)	Horn Connector
(7)	C120
(8)	Underhood Accessory Wiring Junction Block C3
(9)	C142

Figure 13:

Front Wheel Speed Sensor


(1)	C171 (LH Shown), C172 (RH SImilar)
(2)	Forward Lamp Wiring Harness
(3)	Front Wheel Speed Sensor Connector
(4)	Front Wheel Speed Sensor

Figure 14:

Right Front Wheel


(1)	RF Wheel Speed Sensor Connector
(2)	Wheel Speed Sensor
(3)	C172

Figure 15:

C200, C204 and Relays Behind Right Side of Instrument Panel


(1)	Instrument Panel Wiring Harness
(2)	Cross Car Bdam Underside
(3)	G200 (SIR and Instrument Panel Grounds)
(4)	C200
(5)	C204
(6)	Relays (Accessory Delay Time (RAP) and Rear Window Defogger Relays Shown, All Others Not Used)

Figure 16:

Steering Column


(1)	C201
(2)	C215
(3)	C205

Figure 17:

Instrument Panel


(1)	C216 (Instrument Panel In-Line to Inflatable Restraint Instrument Panel Module)
(2)	Inflatable Restraint Instrument Panel Module
(3)	Instrument Panel Wiring Harness

Figure 18:

Below I/P, Inside of Floor Console


(1)	Driver Seat Heater Switch
(2)	Driver Seat Heater Switch Connector
(3)	C240
(4)	S238
(5)	S264
(6)	Floor Console Accessory Power Receptacle

Figure 19:

Center of Instrument Panel


(1)	C242
(2)	Cigar Lighter Wiring Jumper
(3)	Cigar Lighter
(4)	Ashtray

Figure 20:

Center of Instrument Panel, Behind Heater-A/C Control


(1)	C252

Figure 21:

Radio -- Center of Instrument Panel


(1)	Radio
(2)	Antenna Lead
(3)	C290

Figure 22:

Left Side of Passenger Compartment


(1)	C301
(2)	C303

Figure 23:

Right Side of Passenger Compartment


(1)	C302
(2)	C304

Figure 24:

Floor of Driver Compartment


(1)	C312(Buick Only)
(2)	C311 (If Equipped)

Figure 25:

Underside of Driver Seat


(1)	C311
(2)	S330

Figure 26:

Center Console


(1)	A/T Shift Lock Actuator Electrical Connector
(2)	A/T Shift Lock Actuator
(3)	Inline Harness Connector
(4)	PRNDL Bulb
(5)	S374
(6)	Performance Shift Connector

Figure 27:

Right Side Rear Door (Left Side Rear Door Similar)


(1)	C356 (RH Shown)/C335(RH Similar)
(2)	P800 (RH Shown)/P700(LH Similar)

Figure 28:

Right Center of Passenger Compartment


(1)	C356

Figure 29:

C371, C372 -- Below Rear of Vehicle (RH Similar)


(1)	C371 LH/C372 RH
(2)	P371 LH/P372 RH

Figure 30:

Radio Antenna Module, C390, C395, and C399 -- RH C-Pillar


(1)	Radio Antenna Module
(2)	Rear Defogger Grid Connection
(3)	C390
(4)	C399
(5)	C395

Figure 31:

Foward Center Roof


(1)	C398

Figure 32:

Rear Of Vehicle


(1)	P400
(2)	C400

Figure 33:

Right Side Of Passenger Compartment (Sedan Shown) (Coupe Similar)


(1)	C405
(2)	P372

Figure 34:

Rear Compartment Lid


(1)	C430

Figure 35:

Right Side Of Engine Compartment


(1)	G100

Figure 36:

Lower Front of Engine (RPO LG8)


(1)	G117 (Engine Compartment Ground)
(2)	G111/G113 (Ignition Control Module, Engine Electronic and Battery Grounds)
(3)	Starter Assembly
(4)	Bank 1 Knock Sensor (KS)
(5)	Positive Battery Cable
(6)	Engine Oil Pressure Indicator Switch

Figure 37:

Top Right of Engine -- RPO L36,L67


(1)	Ignition Coils
(2)	Ignition Control Module (ICM)
(3)	G111
(4)	Ignition Control Module (ICM) Wiring Harness

Figure 38:

Lower Front Of VIN K Engine Compartment (VIN 1 Similar)


(1)	G113/G117

Figure 39:

Left Rear Of Engine Compartment


(1)	C103
(2)	C101
(3)	C181
(4)	G119
(5)	C171
(6)	P101
(7)	P103

Figure 40:

Behind Left Side Of Instrument Panel


(1)	G201 (Radio and IP Electronic Grounds)

Figure 41:

Below Left Side Of Steering Column


(1)	P500 (Left Shown)/P600 (Right Similar)
(2)	G205

Figure 42:

Left Side Of Passenger Compartment (Sedan Shown) (Coupe Similar)


(1)	C301
(2)	C303
(3)	G301
(4)	C311
(5)	C325
(6)	P371
(7)	C355

Figure 43:

Right Side Of Passenger Compartment (Sedan Shown) (Coupe Similar)


(1)	C356
(2)	P372
(3)	G302
(4)	C302
(5)	C304

Figure 44:

Left Rear Of Engine Compartment


(1)	C103
(2)	C101
(3)	C181
(4)	G119
(5)	C171
(6)	P101
(7)	P103

Figure 45:

Left Door (Coupe) (Right Similar)


(1)	P500 (Left Shown)/P600 (Right Similar)
(2)	C301 (Left Shown)/C302 (Right Similar)
(3)	C303 (Left Shown)/C304 (Right Similar)

Figure 46:

Left Side of Engine Compartment


(1)	S106
(2)	A/C Refrigerent Pressure Sensor

Figure 47:

Hulkhead of Engine Compartment


(1)	Electronic Brake Traction Control Module Connector
(2)	S131
(3)	Elerctronic Brake Traction Control Module

Figure 48:

Top of Instrument Panel


(1)	Instrument Cluster Head-Up Display (HUD) Module
(2)	S209
(3)	S219
(4)	S289
(5)	S290
(6)	Instrument Cluster C1
(7)	Instrument Cluster C2
(8)	Instrument Cluster Head-Up Display (HUD) Connector

Figure 49:

Below I/P, Inside of Floor Console


(1)	Driver Seat Heater Switch
(2)	Driver Seat Heater Switch Connector
(3)	C240
(4)	S238
(5)	S264
(6)	Floor Console Accessory Power Receptacle

Figure 50:

Below LH Instrument Panel


(1)	S282
(2)	S265
(3)	DRL Module
(4)	Left IP Courtesy Lamp
(5)	DRL Diode (Not Shown)
(6)	Theft Deterrent Relay
(7)	Hazard/Turn Signal Flasher Relay
(8)	Rear Compartment Lid Release Relay

Figure 51:

Interior Roof


(1)	Sunshade Illuminated Mirror Connector

Figure 52:

Inside Rear Compartment


(1)	Rear Compartment Courtesy Lamp Switch Connector
(2)	S416
(3)	Rear Compartment Lid Lock Release Actuator