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08
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SELECT ACTUATOR
EGR SOLENOID
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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
Press key F5 in the system main menu, select the
desired test using the arrow keys and confirm with Yes.
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33, 34
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42, 19
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Follow the instructions in the TECH 1 display
Note:
The exhaust gas recirculation valve is actuated at a
frequency of 0.5 Hz.
The test is completed after a maximum of 30 s
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Noise check:
clicking noise from exhaust gas recirculation valve
TECH 1 display shows alternately:
99 %
0 %
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Test 2:
Engine running at idle speed
Press key F5 in the system main menu, select the
desired test using the arrow keys and confirm with Yes.
Follow the instructions in the TECH 1 display
Note:
The exhaust gas recirculation valve is actuated at a
frequency of 0.5 Hz, switching it on and off.
The test is completed after a maximum of 30 s
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TECH 1 display shows alternately:
62 %
0 %
During the test, the engine speed oscillates
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