Opel Frontera UBS. Service manual — part 14
00 – 28 SERVICE INFORMATION
MAGNETIC CLUTCH DOES NOT RUN
•
TURN THE STARTER SWITCH ON AND START THE
ENGINE.
•
TURN THE FAN SWITCH ON.
•
DOES THE BLOWER MOTOR RUN?
YES
NO
REFER TO THE DIAGNOSIS PROCEDURE FOR
“BLOWER MOTOR DOES NOT RUN”.
•
IS THE FUSE C-20 (10A) NORMAL?
YES
NO
REPLACE THE FUSE.
•
DISCONNECT THE A/C SWITCH CONNECTOR AND
REMOVE THE A/C SWITCH.
•
IS THE A/C SWITCH NORMAL?
YES
NO
YES
NO
REPAIR AN OPEN CIRCUIT BETWEEN THE
FUSE C-20 AND I23-2.
•
REINSTALL THE A/C SWITCH AND DISCONNECT THE DUAL
PRESSURE SWITCH (OR TRIPLE PRESSURE SWITCH) CON-
NECTOR C25.
•
TURN THE A/C SWITCH ON.
•
IS THE BATTERY VOLTAGE APPLIED AT HARNESS SIDE
CONNECTOR C25-1?
YES
NO
REPLACE THE SWITCH.
•
RECONNECT THE CONNECTOR C25 AND DISCONNECT THE
A/C THERMO RELAY CONNECTOR X5.
•
IS THERE CONTINUITY BETWEEN HARNESS SIDE CONNEC-
TOR C25-2 AND X5-1?
YES
NO
REPAIR AN OPEN CIRCUIT BETWEEN I23-6
AND C25-1.
•
IS THE DUAL PRESSURE SWITCH (OR TRIPLE PRESSURE
SWITCH) NORMAL?
YES
NO
REPAIR OR REPLACE THE SWITCH.
•
IS THE BATTERY VOLTAGE APPLIED AT HARNESS SIDE
CONNECTOR I23-2?
SERVICE INFORMATION 00 – 29
•
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
•
DISCONNECT THE PCM CONNECTORS.
•
IS THERE CONTINUITY BETWEEN HARNESS SIDE CON-
NECTOR X5-4 AND PCM C3-E15?
REPAIR AN OPEN CIRCUIT.
YES
NO
•
IS THERE CONTINUITY BETWEEN HARNESS SIDE CON-
NECTOR I42-2 AND THE GROUND?
REPAIR AN OPEN CIRCUIT.
YES
NO
•
DISCONNECT THE A/C COMPRESSOR RELAY CONNEC-
TOR X7.
•
IS THE BATTERY VOLTAGE APPLIED AT HARNESS SIDE
CONNECTOR X7-1 AND X7-2?
REPLACE THE ELECTRONIC THERMOSTAT.
YES
NO
•
RECONNECT X5 AND I42.
•
IS THE BATTERY VOLTAGE APPLIED AT HARNESS SIDE
CONNECTOR PCM C3-E15?
REPAIR AN OPEN CIRCUIT.
REPLACE THE RELAY.
00 – 30 SERVICE INFORMATION
YES
NO
REPAIR AN OPEN CIRCUIT BETWEEN THE
FUSE C-20 AND X7-1 (OR X7-2).
•
DIS CONNECT THE MAGNETIC CLUTCH CONNECTOR E3.
•
CONNECT THE BATTERY WITH MAGNETIC CLUTCH SIDE
CONNECTOR E3-1.
•
DOES THE MAGNETIC CLUTCH WORK?
YES
NO
NO
REPAIR OR REPLACE THE MAGNETIC CLUTCH.
•
IS THERE CONTINUITY BETWEEN HARNESS SIDE CON-
NECTOR X7-4 AND E3-1?
YES
REPAIR AN OPEN CIRCUIT.
REPAIR AN OPEN CIRCUIT.
REPAIR AN OPEN CIRCUIT.
•
IS THERE CONTINUITY BETWEEN HARNESS SIDE CON-
NECTOR X7-3 AND PCM C1-B14?
YES
NO
NO
•
IS THERE CONTINUITY BETWEEN HARNESS SIDE CON-
NECTOR X5-4 AND PCM C3-E15?
YES
REPLACE THE PCM.
SERVICE INFORMATION 00 – 31
4JG2 ENGINE
1
2
3
4
5
6
RELAY; A/C
B-36
C-20
(LHD)
10A
A/C
FL-1
80A
MAIN
1
2
B-2
C-25
2
4
X-5
1
3
4
1
3
2
4
1
A/C SW.
FAN SW.
I-23
PRESSURE
SW.
RELAY;
THERMO
B-2
C-25
E-3
I-23
BATTERY
3
1
2
ELECTRONIC
THERMOSTAT
1
E-3
MAGNETIC
CLUTCH
Mg
OFF
I-18
2
6
1
3 2 1
1 2 3
1
2
3
4
1 2
1
2
1
3
5
4
6
I-18
X-5
B-1
(LHD)
(RHD)
B-1
1
2
3
4
W/ CONDENSER
FAN
I-42
I-42
B-36
D08RY00169
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