- HV primary coil check
Disconnect the control unit connector and check
that the cable between terminal No. 3 and terminal
No. 8 is not interrupted (see figure).
If non-conforming values are measured, check
again the HV primary coil directly on the positive
and negative terminals. If non-conforming values
are measured, repair the cable harness or else re-
place the HV coil.
Electric characteristic
High voltage coil primary check
0.21 ± 0.025 Ohm
HV coil secondary check
Disconnect the spark plug cap from the HV cable
and measure the resistance between the HV cable
terminal and the HV coil negative terminal (see
figure).
If non-conforming values are measured, replace
the HV coil. To carry out a more complete diagno-
sis, check the peak voltage with the multimeter
adaptor.
Specific tooling
020409Y Multimeter adaptor - Peak voltage de-
tection
Electric characteristic
High voltage coil secondary resistance value
3100±310 Ohm
Carnaby 125 - 200 Electrical system
ELE SYS - 83
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