GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Automatic Level Control Air Compressor (Envoy)

In the rear quarter of the vehicle

Automatic Level Control Component Views

Automatic Level Control Connector End Views

Automatic Level Control Inflator Air Switch (Envoy)

In the rear quarter of the vehicle

Automatic Level Control Component Views

Automatic Level Control Connector End Views

Automatic Level Control Sensor (Envoy)

On the frame rear crossmember

Automatic Level Control Component Views

Automatic Level Control Connector End Views

Automatic Level Control Solenoid Valve (Envoy)

In the rear quarter of the vehicle

Automatic Level Control Component Views

Automatic Level Control Connector End Views

Automatic Level Control Timer Relay (Envoy)

In the rear quarter of the vehicle

Automatic Level Control Component Views

Automatic Level Control Connector End Views

Underhood Fuse Block

On the top of the left inner wheelwell

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Fuse Block Connector C1 (68 Cavities) (Body)

Below the Underhood Fuse Block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C470 (3 Cavities) (Envoy only)

In the right rear body trim between the body harness and the load leveling harness

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C471 (6 Cavities) (Envoy only)

In the right rear body trim between the body harness and the load leveling harness

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C472 (2 Cavities) (Envoy Only)

In the rear quarter of the vehicle

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G470 (Envoy)

(Circuit 1350) Body harness, in the LH rear body corner, near C403 to the tail lamp harness

Harness Routing Views in Wiring Systems

--

P100

IP bulkhead pass-through, LH rear of the engine compartment, on the cowl

Harness Routing Views in Wiring Systems

--

P400 (Envoy)

Right hand rear of vehicle

Harness Routing Views in Wiring Systems

--

S470 (Envoy)

(CKT 1350) In the Rear Quarter harness approximately 4 cm (1.6 in) right of the automatic level control solenoid valve breakout.

Harness Routing Views in Wiring Systems

--

S471 (Envoy)

(CKT 1350) In the rear quarter on the load leveling harness

Harness Routing Views in Wiring Systems

--

S472 (Envoy)

(CKT 321) In the rear quarter on the load leveling harness

Harness Routing Views in Wiring Systems

--

S473

(CKT 639) In the rear quarter on the load leveling harness

Harness Routing Views in Wiring Systems

--

S474

(CKT 1840) In the rear quarter on the load leveling harness

Harness Routing Views in Wiring Systems

--

S475 (Envoy Only)

(CKT 1840) Body harness, 65 cm (25.6 in) from G420 breakout toward rear of vehicle

Harness Routing Views in Wiring Systems

--