Ignition
System
Check voltage at disconnected control unit
plug between terminals 6 and 8 with the igni-
tion on. The voltage must equal the battery
voltage.
Voltage correct?
Eliminate break in supply line.
yes
9. Check sensor resistance including sensor line
at disconnected control unit plug between
terminals 3 and 7.
Resistance: 490 to 700 ohms.
Printed in Germany
28 -10
Troubleshooting Electronic Ignition System