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Home >> Toyota >> 2002 >> Echo L4-1.5L (1NZ-FE) >> Repair and Diagnosis >> Power and Ground Distribution >> Diagrams >> Diagnostic Aids >> Voltage Check

Voltage Check

Voltage Check

Voltage Check:





A. Establish conditions in which voltage is present at the check point.

Example:
A - Ignition SW ON
B - Ignition SW and SW 1 ON
C - Ignition SW, SW 1 and Relay ON (SW 2 OFF)

B. Using a voltmeter, connect the negative lead to a good ground point or negative battery terminal, and the positive lead to the connector or component terminal.
This check can be done with a test light instead of a voltmeter.