Outboard Ignition Troubleshooting � Page 2 � Chrysler Systems
This section covers Chrysler outboard ignition troubleshooting for point-type ignition systems and Magnapower II systems. These procedures help diagnose no spark, weak spark, and repeated CD module failures.
Chrysler Point Type Ignitions with Amplifiers (Power Packs)
A large proportion of problems with battery CD units are caused by low battery voltage or poor ground connections. Low voltage symptoms include weak or erratic firing.
WARNING: Reversing battery cables will cause severe damage to the CD module and rectifier.
Chrysler CD modules are similar to OMC units except for wire colors:
- Red � +12V from battery
- Blue � +12V from key switch
- Gray � Coil output
- White � Tach signal
- White/Black � Points or preamp
- Black � Ground
No Fire on Any Cylinder
- Clean all battery connections and grounds.
- Verify CD module ground.
- Use spark tester on coil output.
- Check for minimum 9.5V on blue wire while cranking.
- Check white/black wire signal from distributor.
- Check DVA voltage (~200V) on coil feed.
After repair, verify battery voltage at 3500 RPM (12�16V range).
Magnapower II Systems
- Disconnect kill wires and retest.
- Verify no voltage present on kill circuit.
- Test spark with plugs in and out.
- Check DVA voltage (170�270V range).
- Verify correct coil polarity wiring.