Opel Frontera UBS. Manual - part 1706

8D–502

WIRING SYSTEM

Trouble mode

Check point

Seat heater on both sides does not heat up

Seat heater on the driver (or passenger)

side does not heat up

Heat (or keep) position does not heat up

1.

2.

3.

Fuse C-2

(15A)

Seat heater SW

Driver side

Passenger

side

Heat unit

Driver side

Passenger

side

Cable

harness

YES

REPLACE THE FUSE

NO

•

IS FUSE C-2 (15A) NORMAL?

IS   B-26    GROUNDED SECURELY?

YES

GROUND IT SECURELY

NO

•

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN C-2 (15A) AND 2   B-29
(2   B-31   )

Diagnosis

Quick Chart for Check Points

1.

Seat Heater on Both Sides Does Not Heat Up

WIRING SYSTEM

8D–503

YES

REPAIR A POOR CONNECTION AT
THE CONNECTORS OR AN OPEN
CIRCUIT IN THE CIRCUIT

NO

•

•

•

DISCONNECT THE SEAT HEATER SWITCH CONNECTOR
TURN THE STARTER SWITCH “ON” 
IS THE BATTERY VOLTAGE APPLIED BETWEEN THE SEAT
HEATER SW HARNESS SIDE CONNECTOR 2  B-29
(OR 2  B-31  ) AND THE GROUND?

•

IS THE SEAT HEATER SW FUNCTION NORMAL?

YES

REPLACE THE SEAT HEATER SW

NO

•

•

DISCONNECT THE HEAT UNIT CONNECTOR
IS THERE ANY CONTINUITY BETWEEN THE HEAT UNIT
CONNECTOR 1   T-8   , 3   T-8   AND 4   T-8   (OR 1 T-10  ,
3  T-10  AND 4  T-10  )

YES

REPLACE THE HEAT UNIT

NO

REPAIR A POOR CONNECTION AT THE CONNECTORS OR AN OPEN
CIRCUIT BETWEEN 1  B-29  AND 1   T-8   , 4  B-29  AND 3   T-8   ,
4   T-8   AND GROUND (OR 1  B-31  AND 1  T-10  , 4  B-31  AND 
3  T-10  , 4  T-10  AND GROUND)

YES

REPLACE THE SEAT HEATER SW

NO

•

IS THE SEAT HEATER SW FUNCTION NORMAL?

REPLACE THE HEAT UNIT

2.

Seat Heater on The Driver (Or Passenger) Side Does Not Heat Up

3.

Heat (Or Keep) Position Does Not Heat Up

8D–504

WIRING SYSTEM

Power Seat

General Description

The circuit consists of power seat switch, front tilt
motor (driver’s seat only), rear tilt motor (driver’s seat
only), slide motor and recliner motor.
Power seat switch has a tilt and slide switch and a
recliner switch. The motor built in the seat can be
actuated by operating these switches to move the
seat to desired position, independent of position of
starter switch.

WIRING SYSTEM

8D–505

Circuit Diagram (RHD)-1

D08RW640

A

H-57

C/B-2

3.0

B/L

3.0

B/L

2.0

R

1

T-

2

PO

WER SEA

T SW

-RH

1

2.0

B

2.0

B

2.0

B

2.0

B

2.0

B

2.0

B

M

T-

1

1

1.25

Y

1.25

Y/B

T-

1

T-

4

T-

4

6

1.25

Y/R

1.25

Y/W

T-

1

3

T-

1

UP

DO

WN

8

T-

3

RECLINER

MO

T

OR & SW

-LH

DRIVER'S SEA

T

TIL

T MO

T

O

R

& SW

-FR

T

3

B

M

T-

1

5

T-

1

10

1.25

L/W

FR

T

R

R

1.25

G/R

SLIDE MO

T

O

R

-LH

T-

3

2

T-

3

1

2

1

M

T-

1

2

1.25

L

1.25

L/B

T-

1

T-

6

T-

6

7

1.25

L/R

1.25

G

T-

1

4

T-

1

UP

DO

WN

9

T-

5

DRIVER'S SEA

T

TIL

T MO

T

O

R

& SW

-RR

3

T-

5

2

T-

5

1

2

1

M

T

-11

3

1.25

W

1.25

B/W

T

-11

6

1.25

BR

1.25

LG

T

-11

2

T

-11

5

T

-11

4

H-57

BOD

Y

-CTR

BOD

Y

-LH

BOD

Y

-RH

4

T-

2

2

B-26

B-2

B-18

T-

7

1

T-

7

2

FR

T

R

R