Opel Frontera UBS. Manual - part 2823

8D–492

WIRING SYSTEM

Parts Location (LHD)

Legend

(1) S-5
(2) S-4
(3) S-3
(4) S-2
(5) B-18
(6) H-23

(7) Fuse Box (B-37)
(8) B-1
(9) Relay and Fuse Box

(10) H-21
(11) H-45
(12) L-1

D08RW388

2

1

3

4

5

6

7

8

9

10

11

12

WIRING SYSTEM

8D–493

Diagnosis

Quick Chart for Check Points

1.  Sun roof does 
     not open

2.  Sun roof does
     not close

3.  Safety stop mechanism 
     does not operate before   
     sun roof closes completely

4.  Limit switch mechanism
     does not operate before
     sun roof open completely

5.  Power source circuit 
     diagnosis

C/B-2
(30A)

Fuse

C-4

(15A)

Power

win-
dow

relay

Sun

 roof 

switch

Sun

roof

control

unit

Sun

roof 

motor

Safety

stop

switch

Cable

har-

ness

Check point

Trouble mode

Limit

switch

8D–494

WIRING SYSTEM

•

•

TURN THE STARTER SWITCH ON
IS BATTERY VOLTAGE APPLIED BETWEEN 2   S-4   AND
THE GROUND?

YES

•

IS   B-2   (OR   B-1  ) GROUNDED SECURELY?

REFER TO ITEM No. 5 “POWER SOURCE
CIRCUIT DIAGNOSIS” IN THIS DIAGNOSIS

NO

YES

•

IS THERE ANY CONTINUITY BETWEEN 3   S-5   - 1   L-1
(6   S-5   - 3   L-1   )?

REPAIR OR REPLACE THE SWITCH

NO

YES

IS THE SUN ROOF SWITCH NORMAL?

GROUND IT SECURELY

NO

•

YES

•

IS THERE ANY CONTINUITY BETWEEN 2   L-1   -   B-2   (OR   B-1  )?

REPAIR A POOR CONNECTION OF THE CONNECTORS

OR AN OPEN  CIRCUIT IN THE CIRCUIT

NO

YES

•

•

CONNECT THE BATTERY (+) TERMINAL TO THE SUN
ROOF MOTOR SIDE CONNECTOR TERMINAL 1   S-3
(2   S-3   ) AND THE (–) TERMINAL TO 2   S-3   (1   S-3   )
DOES THE MOTOR ROTATE?

NO

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

YES

•

IS THERE ANY CONTINUITY BETWEEN THE HARNESS
SIDE CONNECTOR TERMINALS 1   S-3   - 2   S-3   ?

REPAIR OR REPLACE THE MOTOR

NO

YES

•

IS THERE ANY CONTINUITY BETWEEN 4   S-5   -   B-2   (OR   B-1  )?

REPAIR A POOR CONNECTION OF THE CONNECTORS

OR AN OPEN CIRCUIT IN THE CIRCUIT

NO

A

1.

Sun Roof Does Not Open

2.

Sun Roof Does Not Close

WIRING SYSTEM

8D–495

YES

REPLACE THE CONTROL UNIT

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

NO

A

•

IS THE CONTINUITY IN THE SAFETY STOP SWITCH
NORMAL?

YES

•

IS THERE ANY CONTINUITY BETWEEN 5   S-5   - 3   S-2   ?

REPAIR OR REPLACE THE SWITCH

NO

YES

REPAIR AN OPEN CIRCUIT BETWEEN 1   S-2   AND THE
GROUND OR GROUND IT SECURELY

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

NO

•

IS THE CONTINUITY IN THE LIMIT SWITCH NORMAL?

YES

•

IS THERE ANY CONTINUITY BETWEEN 5   S-5   - 3   S-2   ?

REPAIR OR REPLACE THE SWITCH

NO

YES

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

NO

REPAIR A POOR CONNECTION OF THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN 1  S-2   -   B-2   (OR   B-1  )

3.

Safety Stop Mechanism Does Not Operate Before Sun Roof Closes Completely

4.

Limit Switch Mechanism Does Not Operate Before Sun Roof Open Completely