Contents Wiring diagrams Section: Diagnosis & Information Systems - Overview - e36, e38, e39, e46, e52 & e53 All sections

Special Functions BMW X5 E53

Special Functions

Freezes the display with the current test results. Serves the same function as the buttons on the large MFK1 and 2 test leads.

Identifying Hold Screen. Scheme 651

Scheme 651: Identifying Hold Screen

The current measured value is constantly monitored. The highest and lowest measured value since the activation of the function is displayed below the actual display.

Identifying Minimum/Maximum. Scheme 652

Scheme 652: Identifying Minimum/Maximum

System voltage and engine speed adds an additional field to the display that measures system voltage and engine RPM along with the original measurement. This feature requires that the diagnostic head be connected.

Identifying System Voltage Engine Speed. Scheme 653

Scheme 653: Identifying System Voltage Engine Speed

2nd measurement splits the main display field into two separate displays. This permits two measurements from separate test leads to be displayed at the same time.

Identifying 2nd Measurement. Scheme 654

Scheme 654: Identifying 2nd Measurement

Note. only one of the special functions may be enabled and displayed at a time.

Stimulate allows the user to turn on or off the stimulate output function while in the multimeter. This is useful when applying an output signal to a vehicle circuit for testing purposes.

Identifying Stimulate. Scheme 655

Scheme 655: Identifying Stimulate

Identifying Counter Display. Scheme 656

Scheme 656: Identifying Counter Display

The counter function of the DISplus measurement system allows the user to measure time based signals. The measurements are

  1. Frequency
  2. Period
  3. Pulse duration
  4. Pulse duty factor

The desired measurement is set-up from the screen by selecting from the following

  1. Measurement function
  2. Test cable
  3. Measurement range
  4. Trigger level (default is set at 5 Volts)
  5. Trigger slope (determines which portion of the signal will be used as the trigger point)