Electrical system
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E
Check the resistance between the electrode and the
screw cap of the spark plug as shown in the figure.
Permitted resistance: 4.5 ÷ 5.5 K
Carry out the test on all the spark plugs.
Do not use non-resistive spark plugs..
MAIN RELAY
The main relay is situated on the left side and it is iden-
tified by the “M” letter.
The first thing to check is the isolation between the ter-
minals (2) and (4) with a tester.
Apply 12V to the terminals (1) and (3) and check the
continuity between terminals (4) and (2). If there is no
continuity, substitute the relay with a new one.
F4 MY10 -> MY12
F4 MY13
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