Porsche 928 Workshop Manual page 506

28
Ignition System 928
I
Y==
6. Measure voltage of ignition coil terminal 15
against ground.
Turn on ignition.
6-1--r=
<.
z
\
_- I. * s....,
. ..<.. ,.1-. '- >:*
t
Voltage at term. 15: at least 3 V at battery
voltage of at least 11 volts (measure at same
time).
Voltage correct>
go to point 11.
no
c Check voltage drop at wires and connections on
ignition switch. resistors. ignition coil and con-
trol unit. and eliminate voltage drop.
a
28 - 14 Troubleshooting Electronic Ignition System
Printed In Germany