Opel Frontera UBS. Manual - part 1581

8D–2

WIRING SYSTEM

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–268

Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . 

8D–274

General Description . . . . . . . . . . . . . . . . . . 

8D–274

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–275

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–277

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–281

Anti–Lock Brake System (ABS) . . . . . . . . . . 

8D–286

General Description . . . . . . . . . . . . . . . . . . 

8D–286

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–287

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–293

A/T Shift Lock . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–300

General Description . . . . . . . . . . . . . . . . . . 

8D–300

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–301

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–302

Windshield Wiper/Washer . . . . . . . . . . . . . . 

8D–305

General Description . . . . . . . . . . . . . . . . . . 

8D–305

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–306

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–307

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–310

Rear Wiper/Washer . . . . . . . . . . . . . . . . . . . . 

8D–318

General Description . . . . . . . . . . . . . . . . . . 

8D–318

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–319

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–321

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–325

Headlight Wiper/Washer . . . . . . . . . . . . . . . 

8D–331

General Description . . . . . . . . . . . . . . . . . . 

8D–331

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–332

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–334

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–338

Rear Defogger . . . . . . . . . . . . . . . . . . . . . . . . 

8D–344

General Description . . . . . . . . . . . . . . . . . . 

8D–344

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–345

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–346

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–349

Audio  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–352

General Description . . . . . . . . . . . . . . . . . . 

8D–352

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–353

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–357

Cigarette Lighter and Digital Clock . . . . . . . 

8D–361

General Description . . . . . . . . . . . . . . . . . . 

8D–361

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–362

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–363

Power Door Mirror . . . . . . . . . . . . . . . . . . . . 

8D–366

General Description . . . . . . . . . . . . . . . . . . 

8D–366

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–367

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–370

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–375

Anti–Theft System with Keyless Entry . . . . 

8D–382

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–383

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–394

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–401

Meter and Warning/Indicator Light . . . . . . 

8D–414

General Description . . . . . . . . . . . . . . . . . . 

8D–414

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–415

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–433

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–449

A/T Shift Indicator . . . . . . . . . . . . . . . . . . . . . 

8D–468

General Description . . . . . . . . . . . . . . . . . . 

8D–468

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–469

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–471

Heater and Air Conditioning . . . . . . . . . . . . 

8D–475

General Description . . . . . . . . . . . . . . . . . . 

8D–475

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–476

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–478

Sun Roof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–488

General Description . . . . . . . . . . . . . . . . . . 

8D–488

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–489

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–490

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–493

Seat Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–497

General Description . . . . . . . . . . . . . . . . . . 

8D–497

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–498

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–499

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–502

Power Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–504

General Description . . . . . . . . . . . . . . . . . . 

8D–504

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–505

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–507

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–511

Shift on the Fly System . . . . . . . . . . . . . . . . 

8D–517

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–518

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–520

Torque on Demand (TOD) . . . . . . . . . . . . . . 

8D–542

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–543

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–546

Supplemental Restraint System (SRS)–

AIR BAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

8D–547

General Description . . . . . . . . . . . . . . . . . . 

8D–547

Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 

8D–548

Parts Location . . . . . . . . . . . . . . . . . . . . . . . 

8D–552

Connector List . . . . . . . . . . . . . . . . . . . . . . . . 

8D–554

WIRING SYSTEM

8D–3

Service Precaution

WARNING:  THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING, REFER TO
THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.

CAUTION:  Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fasteners joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fasteners.
When you install fasteners, use the correct
tightening sequence and specifications. Following
these instructions can help you avoid damage to
parts and systems.

8D–4

WIRING SYSTEM

The chassis electrical system is a 12–volt system with a
negative ground polarity.
Wire size are appropriate to respective circuits, and
classified by color. (The classification of harnesses by
color is shown on the circuit diagram for ease of harness
identification.)
The wire size is determined by load capacity and the
length of wire required.
The vehicle harnesses are: body harness, chassis
harness, engine room harness, instrument harness,
transmission harness, engine ECGI harness, dome light
harness, door harness, rear body harness, tailgate
harness, SRS harness and battery cables.
The harnesses are protected either by tape or corrugated
tube, depending on harness location.
The circuit for each system consists of the power source,
wire, fuse, relay, switch, load parts and ground, all of
which are shown on the circuit diagram.
In this section, each electrical device is classified by
system.
For major parts shown on the circuit based on the circuit
diagram for each system, a summary, diagnosis of
troubles and inspection procedures are detailed.

Notes for Working on Electrical
Items

Disconnecting the Battery Cable

1. All switches should be in the “OFF” position.
2. Disconnect the battery ground cable (2).
3. Disconnect the battery positive cable (1).

CAUTION:  It is important that the battery ground
cable be disconnected first. Disconnecting the
battery positive cable first can result in a short circuit.

Connecting the Battery Cable

Follow the disconnecting procedure in the reverse order.

CAUTION:  Clean the battery terminal and apply a
light coat of grease to prevent terminal corrosion.

Disconnecting the Connector

Some connectors have a tang lock to hold the connectors
together during vehicle operation.
Some tang locks are released by pulling them towards
you (1).
Other tang locks are released by pressing them forward
(2).
Determine which type of tang lock is on the connector
being handled.

Firmly grasp both sides (male and female) of the
connector (3).
Release the tang lock and carefully pull the two halves of
the connector apart.
Never pull on the wires to separate the connectors (4).

2

1

General Description

1

2

3

4

WIRING SYSTEM

8D–5

When removing the connector for relay (MR5B type) (5),
unfasten the tang lock of the connector by using a
screwdriver, then pull the relay out as shown in the figure.

Connecting the Connector

Firmly grasp both sides (male and female) of the
connectors. Be sure that both sides of the connectors are
aligned with each other.
Firmly but carefully push the two sides of the connectors
together until a distinct click is heard (2).
Do not connect them by force if they can not be connected
smoothly (1).

Connector Inspection

Use a circuit tester to check the connector for continuity.
Insert the test probes (1) from the connector wire side.

Never insert the circuit tester test probes (2) into the
connector open end to test the continuity.
Broken or open connector terminals will result.

5

1

2

1

2