Testing Generator Using Test Plan

Testing the charging system using a test plan is the more complete method of testing.

When selecting this mode of testing, other components in the charging system are tested in addition to the generator.

Test plans available:

• Generator (Checks voltage and current output).
• Wiring from generator to battery (Performs voltage drop test).
• Charge indicator lamp (Condition of bulb, wiring and signal to bulb).
• ON delay and Start ON delay (If applicable).
• Ground side circuit wiring (Voltage drop test).

Sub-tests may be available with some of the component testing.

There are many advantages to using the test plan.

1. Complete system testing.
2. Functional description of system on screen.
3. Proper wiring diagrams provided during testing.
4. Test instructions and notes.
5. Instructions for proper test set-up.
6. Display of nominal values.
7. Solutions.

Fig 1: Identifying DISplus Screen

Courtesy of BMW OF NORTH AMERICA, INC.