Manual DCV Measurements

DCV Wiggle Testing
1. Key On Engine Off (KOEO)/Key On Engine Running (KOER).

2. Select signal from PIN SELECTOR A or B.

3. Select the correct ground from the REFERENCE PIN selector.

4. Tap the component, flex the harness and connectors.

5. The WIGGLE TEST light and beeper will activate when the change is sensed.

6. The DCV Wiggle Test is more sensitive and more commonly used than the OHMS Wiggle Test.

7. Criteria for using the DCV Wiggle Test as opposed to the OHMS Wiggle Test:
- All actuators (red zone).
- All power and grounds.
All sensors that use DCV units in AUTO mode.
- Cannot use KOER Wiggle testing for switching-type signals such as injectors.

Manual DCV
1. Key On Engine Off (KOEO)/Key On Engine Running (KOER).

2. Select signal from PIN SELECTOR A or B.

3. Select the correct ground from the REFERENCE PIN selector.

4. The WIGGLE TEST will light and sound; reset the WIGGLE TEST RESET button.

5. The MANUAL TEST light should be blinking; value in DCV units.