GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Diode Module 1

Below the left side of the IP, to the right of the steering column, next to splice pack 1, row 1

--

--

Diode 202

Part of diode module 1

--

--

Door Jamb Switch

In the left door frame, at the rear of the opening

Lighting Systems Component Views in Lighting Systems

--

Door Open Reminder Alarm

On the steering column (part of the multifunction switch)

--

--

Headlamp Switch

On the left side of the steering column, part of the multifunction switch

Lighting Systems Component Views in Lighting Systems

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

IP Fuse Block

In the right top of the IP, under the access panel

Lighting Systems Component Views in Lighting Systems

--

Multifunction (Combination) Switch

On the steering column

Lighting Systems Component Views in Lighting Systems

--

Multifunction (Combination) Switch C1 (22 cavities)

In the lower IP harness to the steering column multifunction switch

Lighting Systems Component Views in Lighting Systems

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Multifunction (Combination) Switch C2 (9 cavities)

In the lower IP harness to the steering column multifunction switch

Lighting Systems Component Views in Lighting Systems

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Lights On Reminder Alarm

On the steering column (part of the multifunction switch)

--

--

Multifunction Alarm Module (MFAM) (Air Brakes)

Under the right seat

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

--

Multifunction Alarm Module (MFAM) (Hydraulic Brakes)

Under the right seat

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

--

Multifunction Alarm Module (MFAM) C1 (16 cavities) (Air Brakes)

On the lower IP harness to the MFAM

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Audible Warnings Connector End Views in Instrument Panel, Gauges, and Console

Multifunction Alarm Module (MFAM) C1 (16 cavities) (Hydraulic Brakes)

On the lower IP harness to the MFAM

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Audible Warnings Connector End Views in Instrument Panel, Gauges, and Console

Multifunction Alarm Module (MFAM) C2 (2 cavities) (with Automatic Engine Shutdown)

On the lower IP harness to the MFAM

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Audible Warnings Connector End Views in Instrument Panel, Gauges, and Console

Taillamps Relay

In the top of the IP, under the access panel, in the relay center 1

Lighting Systems Component Views in Lighting Systems

--

C210 (16 cavities)

In the lower IP harness, to the floor harness

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

S219

In the upper IP harness, to the right of the fuse block harness breakout

--

--

S227

In the upper IP harness, under the IP, approximately 6 cm (2.4 in) to the left of the fuse block breakout

--

--

S232

In the lower IP harness, in the main harness at the fuse center breakout

--

--

S279

In the lower IP harness, under the IP, approximately 5 cm (2.0 in) to the right of the relay center 1 harness breakout

--

--

S280

In the lower IP harness, in the main harness, at the frame harness breakout

--

--