Content .. 227 228 229 230 ..

Hummer H1 (2002+). Manual - part 229

_____________________________________________________

Electrical System 12-137

05745159

Figure 12-132: Cruise Control Schematic (Sheet 1 of 2)

FUSE 5C
10AMP
INTERIOR

FUSE 3A
10 AMP
EXTERIOR

ON/
OFF

SET
COAST

RESUME
ACCEL

HOT IN RUN
AND START

C29-A11

C29-B11

C27-D10

C28-D14

C28-C2

C27-D12

C27-D3

C27-D4

C27-D6

C29-B2

C29-B1

C27-C5

C29-A12

C5-D3

C5-A4

154 TN

151 GY

152 DB

153 LG

ON / OFF
SIGNAL

SET
COAST
SIGNAL

RESUME
ACCEL
SIGNAL

WASTEGATE
SOLENOID
CONTROL

5 VOLT
REFERENCE

APP 3
SIGNAL

GROUND

APP 1
SIGNAL

GROUND

720 TN

717 WH

723 YL

724 DG

725 GY

718 DB

719 BR

721 LB

722 PP

ACCELERATIOR
PEDAL POSITION
SENSOR

POWERTRAIN
CONTROL
MODULE
(PCM)

APP 2
SIGNAL

9-S12-055

295 BR

GRN

4-1-00

12-138

Electrical System

______________________________________________________

Figure 2-132: Cruise Control Schematic (Sheet 2 of 2)

FUSE 2D
20 AMP
INTERIOR

FUSE 3A
20 AMP
EXTERIOR

FUSE 4D
15 AMP
INTERIOR

FUSE 6B
5 AMP
INTERIOR

10 OR

291 PK

BRAKE
LAMP

TCC/

CRUISE

C1-

TO BRAKE

LAMP

C28-C13

C28-D13

C28-C12

C28-C11

C29-B10

C29-B9

TCC / CRUISE

BRAKE SWITCH

BRAKE LIGHT

SWITCH SIGNAL

IGNITION

VOLTAGE

BATTERY

POSITIVE

537 OR

POWERTRAIN

CONTROL

MODULE (PCM)

239 PK

9-S12-069.2

810 PP

22 RD

4-1-00

_____________________________________________________

Electrical System 12-139

05745159

DELCO AUDIO SYSTEM DESCRIPTION

Delco audio systems are available in two configurations:

The standard system (Figure 12-133), available on all models,
consists of a radio head with cassette player (Hummer logo),
either two or four coaxial speakers and an optional 6 disc CD
changer. An optional infrared remote control for the radio, cas-
sette player and CD changer is available.

The Monsoon system (Figure 12-134), available on models 83
and 84 and 91, uses a radio head and cassette player (Monsoon
logo) with a total of six coaxial speakers and two subwoofers.
Two coaxial speakers are located in an overhead console and

the two subwoofers are housed in a box located under the left
rear seat. An amplifier producing 200 watts on eight channels
is mounted in the overhead console. The amplifier is activated
by output on the left rear channel from the radio. The 6 disc
CD changer is standard with the Monsoon system. A 6 disc
stacker magazine inserted in the CD changer is controlled by
the radio head and optional remote control. The radio and the
cassette player can also be controlled by the remote. Rear seat
audio, included in the monsoon package, provides second au-
dio access to the radio system with the aid of headphones.

Figure 12-133: Delco Standard Radio Face

Figure 12-134: Delco Monsoon Radio Face

Figure 12-135: Rear Seat Audio Face

00-OM3-001

00-OM3-005

PWR

TAPE

P.SET

PROG

VOL

PHONES

SEEK

00-OM3-002

4-1-00

12-140

Electrical System

______________________________________________________

RADIO (DELCO) REPLACEMENT

Removal

Insert a radio removal key in the holes in each side of the
face of the radio to disengage locking clips from the
mounting sleeve (Figure 12-136).

Pull radio out of mounting sleeve far enough to expose
wire connections and disconnect audio harness connector,
antenna cable and CD harness connector if equipped.

NOTE:

Sleeve may not need to be replaced when radio head is

replaced.

Straighten locking tabs and pull mounting sleeve out of
face plate.

Figure 12-136: Radio Removal.

Installation

Install mounting sleeve through face plate and support
plate and bend locking tabs to secure.

Connect harness connectors and antenna cable to radio.

Insert radio into mounting sleeve, align rear mount pin
with upper support bracket and push in until locking clips
engage. Take care not to damage wiring in radio cavity.

Advise end user to reprogram theft lock.

COMPACT DISC CHANGER (DELCO)
REPLACEMENT

Removal

Remove four screws retaining the CD changer bezel to the
console and remove bezel (Figure 12-137).

Remove four screws retaining the CD changer mounting
brackets to the console.

Pull the CD changer out far enough to remove the wire
harness connector from the changer.

If CD changer wire harness is to be replaced, radio must
be removed to gain access to harness connection at the
radio.

Figure 12-137: CD Changer Removal.

Installation

Assure angle adjustments on the sides of the changer are
set at 45° before installation.

Connect wire harness to the connector on the CD changer
and insert changer into the console and the front support
bracket.

Install four screws in the changer mount brackets and
tighten.

Install changer bezel with four screws and tighten.

OVERHEAD CONSOLE, SPEAKER AND AMPLI-
FIER (DELCO MONSOON) REPLACEMENT

Removal

Remove upper B-bar cover screws and cover.

Remove dome light lens, screws securing ground wires
and housing (Figure 12-138).

Remove bulb holder and dome light housing.

Figure 12-138: Overhead Console Removal.

Remove windshield divider bar cover.

Remove screws securing overhead console and pull
console down to gain access to wiring.

Remove blue wire and connector from dome light mount
plate.

RADIO REMOVAL KEYS

MOUNTING SLEEVE

LOCKING
TAB

UPPER SUPPORT BRACKET

CD CHANGER

BEZEL

FRONT SUPPORT
BRACKET

CONSOLE

DOME
LIGHT

SPEAKER
COVER

HOUSING

OVER-
HEAD

4-1-00

Content .. 227 228 229 230 ..