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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 170 (Wiring Systems - Testing, Diagnosis & Repair) >> Diagnostic Information and Procedures >> Measuring Frequency

Measuring Frequency

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to TEST PROBE NOTICE in Cautions and Notices.

The following procedure determines the frequency of a signal.

IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM to autorange to an appropriate range.
  1. Apply power to the circuit.
  2. Set the rotary dial of the DMM to the V (AC) position.
  3. Connect the positive lead of the DMM to the circuit to be tested.
  4. Connect the negative lead of the DMM to a good ground.
  5. Press the Hz button on the DMM.
  6. The DMM will display the frequency measured.
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