Hummer H1 (2006+). Manual — part 398

12-268

Electrical System

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C90/ 4 WAY ALTERNATOR CONNECTOR

C91/ 5 WAY MASS AIRFLOW/AIR INTAKE TEMPERATURE SENSOR CONNECTOR

C92/ 2 WAY AC/COMPRESSOR CONNECTOR

C93/ 2 WAY A/C HIGH PRESSURE CUT-OUT SWITCH CONNECTOR

PIN

CKT

COLOR

DESCRIPTION

A

--

--

--

B

904

OR/BK

To Low Voltage Warning Lamp

C

--

--

--

D

290

PK

Ignition 12 Volt

PIN

CKT

COLOR

DESCRIPTION

1

1250

BK

Low Reference

2

653

YL

IAT Sensor Signal

3

239

PK

Ignition 1 Voltage

4

1251

BK

Low Reference

5

654

DB

MAF Sensor Signal

PIN

CKT

COLOR

DESCRIPTION

A

57

BK

Ground

B

348

BR

Supply Voltage

PIN

CKT

COLOR

DESCRIPTION

A

438

OR

To Low Pressure Cut Out Switch

B

198

TN

From Evaporator Temperature Sensor

5

1

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Electrical System 12-269

C94/ 2 WAY A/C LOW PRESSURE SWITCH CONNECTOR

C95/ 2 WAY FUEL PRESSUR REGULATOR CONNECTOR

C96/ 3 WAY FUEL PRESSURE REGULATOR JUMPER CONNECTOR

PIN

CKT

COLOR

DESCRIPTION

A

438

OR

From High Pressure Cutout Switch

B

439

YL

To ECM

PIN

CKT

COLOR

DESCRIPTION

1

510

PP/WH

Fuel Pressure Regulator Solenoid Supply Voltage

2

511

YL

Fuel Pressure Solenoid Control

PIN

CKT

COLOR

DESCRIPTION

1

BARE

Drain Wire

2

511

YL

Fuel Pressure Solenoid Control

3

510

PP/WH

Fuel Pressure Regulator Solenoid Supply Voltage

2

1

1

2

3

12-270

Electrical System

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C97/ 3 WAY FUEL RAIL PRESSURE (FRP) SENSOR CONNECTOR

C98/ 7 WAY CHIME MODULE CONNECTOR

PIN

CKT

COLOR

DESCRIPTION

1

507

OR/BK

Low Reference

2

509

YL

FRP Sensor Signal

3

508

TN

5- Volt Reference

PIN

CKT

COLOR

DESCRIPTION

1

183

TN

Park Lamp Input

2

159

WH

Door Ajar Input

2

159

WH

Isolation Diode

3

85

GY

Seat Belt Switch Ground Signal

4

157

PP

Key In Ignition Switch Ground Signal

5

59

BK

Ground

6

450

PK

Seat Belt Warning Light Signal

7

640

OR

12- Volt Fused Ignition

3

1

1

3

7

4

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Electrical System 12-271

C99/ 3 WAY MAP SENSOR CONNECTOR

C100/ 3 WAY BARO SENSOR CONNECTOR

PIN

CKT

COLOR

DESCRIPTION

A

616

OR/BK

Low Reference

B

615

LG

MAP Sensor Signal

C

614

GY

5- Volt Reference

PIN

CKT

COLOR

DESCRIPTION

A

255

OR/BK

Low Reference

B

613

GY/BK

BARO Sensor Signal

C

612

WH/BK

5- Volt Reference

A

C

C

A