GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Air Conditioning (A/C) Relay (Rear A/C - Heat)

In the underhood fuse-relay center

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Blower Motor Front

Behind the coolant recovery reservoir by the right front fender

HVAC Component Views in HVAC Systems with A/C - Manual

Heater Blower Controls Connector End Views

Blower Motor Resistor and Relay Pack

Mounted between the evaporator and the front blower motor on the right side front of the dash housing

Lighting Systems Component Views in Lighting Systems

Heater Blower Controls Connector End Views

Convenience Center

On the left of the instrument panel (IP) fuse block by the left kick panel

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Heater and A/C Control Valve Solenoid

On the lower left side of the evaporator housing behind the receiver dryer

HVAC Component Views in HVAC Systems with A/C - Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

Heater Control Module (without A/C)

In the center of the dash

HVAC Component Views in HVAC Systems with A/C - Manual

Heater Blower Controls Connector End Views

Heater Blower Motor Rear

On the left side of the vehicle behind the B pillar

Heater Blower Controls Component Views

Heater Blower Controls Connector End Views

Heater Resistor Pack Rear

On top of the rear heater core assembly

Heater Blower Controls Component Views

HVAC Connector End Views in HVAC Systems with A/C - Manual

Heater Switch Rear

In the center of the dash on the right side of the radio

HVAC Component Views in HVAC Systems with A/C - Manual

Heater Blower Controls Connector End Views

IP Fuse Block

On the lower left side of the dash next to the left side kick panel

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Temperature Control Motor

On the lower right side of the dash on the left side of the main air duct

HVAC Component Views in HVAC Systems with A/C - Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

Underhood Fuse-Relay Center (RWD)

On the left side front of the dash near the battery

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Underhood Fuse-Relay Center (F4WD)

On the left side front of the dash near the battery

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

C100

In the left side front of the dash

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C101

In the left of the bulkhead on the left side front of the dash

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C105

In the left side front of the dash under the underhood fuse-relay center

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C212

In the left side kick panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C219

In the convenience center

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

P100

In the left side front of the dash to the left of the bulkhead

Harness Routing Views in Wiring Systems

-

G100

In the right front of the radiator support next to the engine coolant reservoir

Harness Routing Views in Wiring Systems

-

G104

In the right side of the front of the dash above the blower motor

Harness Routing Views in Wiring Systems

-

G200

In the right front A pillar above the right front door jamb switch

Harness Routing Views in Wiring Systems

-

G301

Above the rear heater toward the rear of the vehicle

Power and Grounding Component Views in Wiring Systems

-

S100

In the forward lamp harness 8 cm (3.1 in) from the right side headlamp breakout toward the left side of the vehicle

Harness Routing Views in Wiring Systems

-

S111

In the engine harness 17 cm (6.7 in) from the underhood fuse-relay center breakout toward the underhood fuse-relay center

Harness Routing Views in Wiring Systems

-

S124

In the engine harness 13 cm (5.1 in) from the oil pressure switch breakout toward C100

Harness Routing Views in Wiring Systems

-

S224

In the IP harness 17 cm (6.7 in) from the headlamp switch connector breakout toward the right side of the dash

Harness Routing Views in Wiring Systems

-

S229

In the IP harness 4 cm (1.6 in) from the temperature control motor connector breakout toward the right side of the dash

Harness Routing Views in Wiring Systems

-

S238

In the IP harness 1.5 cm (0.6 in) from C201 connector breakout toward C100

Harness Routing Views in Wiring Systems

-