Opel Frontera UBS. Service manual — part 1704
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
8D–496
WIRING SYSTEM
•
IS THERE ANY CONTINUITY BETWEEN THE TERMINALS
OF C/B-2 (30A)?
YES
•
IS FUSE C-4 (15A) NORMAL?
PUSH IN THE RESET BUTTON OF CIRCUIT BREAKER
AND CHECK THE CONTINUITY AGAIN
IF THERE IS NO CONTINUITY AFTER PUSHING RESET
BUTTON, REPLACE IT WITH NEW ONE
NO
YES
•
IS THE POWER WINDOW RELAY NORMAL?
REPLACE THE FUSE
NO
YES
•
•
TURN THE STARTER SWITCH ON
IS THE BATTERY VOLTAGE APPLIED BETWEEN 1 B-37
AND THE GROUND OR 2 B-37 AND THE GROUND?
NO
REPLACE THE RELAY
YES
REPAIR A POOR CONNECTION OF THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 3 B-37 AND B-19 (OR B-18 )
GROUND IT SECURELY
NO
YES
•
IS B-19 (OR B-18 ) GROUNDED SECURELY?
NO
REPAIR A POOR CONNECTION OF THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN FUSE C-4 (10A) AND
1 B-37 OR 1 H-14 AND 2 B-37
5.
Power Source Circuit Diagnosis
WIRING SYSTEM
8D–497
Seat Heater
General Description
The circuit consists of seat heater switch and seat
heater unit.
Seat heater unit is incorporated into front seats.
To prevent from being overheated, seat heater unit
has thermostat.
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