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06
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SELECT ACTUATOR
A / C CUTOFF RELAY
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Vehicles with AC:
This test can be performed in two operating conditions:
"ignition On, engine Off" and engine running at idle
speed"
The first part of the test should be performed if it is not
possible to start the engine; otherwise the second part allows certain
diagnosis
Test 1:
Ignition On
Engine Off
AC switch On
Press key F5 in the system main menu, select the
desired test using the arrow keys and confirm with Yes.
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87, 88
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53, 41
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Follow the instructions in the TECH 1 display
Note:
The AC cutoff relay is actuated at a frequency of
0.5 Hz
The test is completed after a maximum of 30 s
Test 2:
Engine running at idle speed
AC switch On
Press key F5 in the system main menu, select the
desired test using the arrow keys and confirm with Yes.
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Noise check:
clicking noise from relay
TECH 1 display shows alternately:
INACTIVE
12 V
ACTIVE 0 V
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Follow the instructions in the TECH 1 display
Note:
The AC cutoff relay is actuated at a frequency of
0.5 Hz
The test is completed after a maximum of 30 s
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TECH 1 display shows alternately:
INACTIVE
12 V
ACTIVE 0 V
AC compressor switches On and Off (clicking
noise from compressor and from relay)
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