XL-7 Standard 4WD V6-2.7L (2002)
4. Using continuity check or voltage check procedure, check the wire harness for open circuit and poor connection with its terminals. Locate
abnormality if any.
Continuity check
1. Measure resistance between connector terminals at both ends of the circuit being checked (between "A-1" and "C-1" in the figure).
If no continuity is indicated (infinity or over limit), that means that the circuit is open between terminals "A-1" and "C-1".
2. Disconnect the connector included in the circuit (connector-B in the figure) and measure resistance between terminals "A-1" and "B-1".
If no continuity is indicated, that means that the circuit is open between terminals "A-1" and "B-1". If continuity is indicated, there is an open
circuit between terminals "B-1" and "C-1" or an abnormality in connector-B.
Voltage check
If voltage is supplied to the circuit being checked, voltage check can be used as circuit check.
1. With all connectors connected and voltage applied to the circuit being checked, measure voltage between each terminal and body ground.
a. If measurements were taken as shown in figure and results were as listed below, it means that the circuit is open between terminals "B-1" and
"A-1".
Voltage between each terminal and body ground
"C-1" and body ground: Approx. 5 V
"B-1" and body ground: Approx. 5 V
"A-1" and body ground: 0 V
