Opel Frontera UBS. Service manual — part 16
00 – 36 SERVICE INFORMATION
•
IS THE BATTERY VOLTAGE APPLIED AT HARNESS SIDE
CONNECTOR X5-2?
REPAIR AN OPEN CIRCUIT.
YES
NO
•
IS THE A/C THERMO RELAY NORMAL?
REPAIR AN OPEN CIRCUIT BETWEEN THE
FUSE C-20 AND X5-2.
YES
NO
•
DISCONNECT THE ELECTRONIC THERMOSTAT CONNEC-
TOR I42.
•
IS THE BATTERY VOLTAGE APPLIED AT HARNESS SIDE
CONNECTOR I42-3?
YES
NO
•
IS THERE CONTINUITY BETWEEN HARNESS SIDE CON-
NECTOR X5-3 AND I42-1?
REPAIR AN OPEN CIRCUIT BETWEEN I23-6
AND I42-3.
YES
NO
REPAIR AN OPEN CIRCUIT.
YES
NO
•
IS THERE CONTINUITY BETWEEN HARNESS SIDE CON-
NECTOR I42-2 AND THE GROUND?
REPAIR AN OPEN CIRCUIT.
REPLACE THE RELAY.
•
DIS CONNECT THE MAGNETIC CLUTCH CONNECTOR E27.
•
CONNECT THE BATTERY WITH MAGNETIC CLUTCH SIDE
CONNECTOR E27-1.
•
DOES THE MAGNETIC CLUTCH.
YES
NO
REPAIR OR REPLACE THE MAGNETIC CLUTCH.
•
REPAIR AN OPEN CIRCUIT BETWEEN X5-4 AND E27-1.
SERVICE INFORMATION 00 – 37
CONDENSER FAN
When the cycling switch, which controls the
condenser fan of the triple pressure switch while
the A/C switch is on, senses the refrigerant pressure
and the condenser fan turns on, the motor operates
via the condenser fan relay.
1
2
3
4
5
6
4
1
3
2
4
1
FAN SW.
B-2
OFF
I-18
I-18
B-1
(LHD)
(RHD)
X-19
1
3
4
5
RELAY;
CONDENSER
FAN
4
TRIPLE
PRESSURE
SWITCH
3
1
CONDENSER
FAN
2
M
C-75
C-39
C-25
FL-4
30A
CONDENSER FAN
FL-1
80A
MAIN
2
6
1
I-23
RELAY; A/C
A/C SWITCH
2
C-39
C-75
C-25
I-23
X-19
1
2
3
4
5
6
7
8
4
3
8
7
2
6
1
5
1
2
1
2
1
2
3
4
2
1
3
5
4
6
1
2
3
4
D08RWD70
00 – 38 SERVICE INFORMATION
CONDENSER FAN DOES NOT RUN
YES
NO
•
DOES A/C SYSTEM OPERATE CORRECTLY?
•
IS FL-4 (30A) FUSE OK?
CHECK A/C SYSTEM AND REPAIR AS NECESSARY
YES
NO
•
IS CONDENSER FAN RELAY (X-19) OK?
REPLACE
REPLACE
YES
NO
•
IS TRIPLE PRESSURE SWITCH (CYCLING SWITCH SIDE)
OK?
REPLACE
YES
NO
•
IS CONDENSER FAN MOTOR OK?
REPLACE
YES
NO
•
CHECK TO SEE IF CONTINUITY BETWEEN FL-4 (30A)
FUSE AND CHASSIS SIDE RELAY TERMINAL NO. X19-1.
REPLACE
YES
NO
•
CHECK TO SEE IF CONTINUITY BETWEEN CHASSIS SIDE
CONNECTOR TERMINAL NO. I23-6 AND NO. C25-3.
OPEN CIRCUIT
YES
NO
•
CHECK TO SEE IF CONTINUITY BETWEEN CHASSIS SIDE
CONNECTOR TERMINAL NO. C25-4 AND CHASSIS SIDE
RELAY TERMINAL NO. X19-4.
OPEN CIRCUIT
YES
NO
•
CHECK TO SEE IF CONTINUITY BETWEEN CHASSIS SIDE
RELAY TERMINAL NO. X19-5 AND CHASSIS SIDE
CONNECTOR TERMINAL NO. I18-4.
OPEN CIRCUIT
YES
NO
SERVICE INFORMATION 00 – 39
•
CHECK TO SEE IF CONTINUITY BETWEEN CHASSIS SIDE
RELAY TERMINAL NO. X19-3 AND CHASSIS SIDE
CONNECTOR TERMINAL NO. C75-1.
YES
NO
OPEN CIRCUIT
POOR GROUND OR OPEN CIRCUIT BETWEEN CHASSIS
SIDE CONNECTOR TERMINAL NO. C75-2 AND BODY
GROUND (NO. C39-7)
CONDENSER FAN DOES NOT STOP
•
IS CONDENSER FAN RELAY (X-19) OK?
YES
NO
REPLACE
TRIPLE PRESSURE SWITCH (CYCLING SWITCH SIDE)
DEFECTIVE
REPLACE TRIPLE PRESSURE SWITCH
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