Short-Circuit To Ground
CAUTION:
Avoid touching control module connector pins and corresponding cable harness connectors. There is a risk of electrostatic discharge, which could damage the control module. Relieve any charge on yourself and the tools to be used by holding the metal part of the tool and touching part of the body just before starting work.
A short-circuit between a live cable and ground is often indicated by the loss of a function or a fuse blowing when a current is passed through the cable.
Checks:
- Check the cables visually according to Inspect Terminals Visually .
Activate all switches and sensors in the circuit. Check whether the fuse blows
- Disconnect the connectors in the circuit to ensure that they do not affect readings.
Connect an ohmmeter between cable and ground.
The ohmmeter should read infinite resistance if no components are connected.
NOTE:
When taking readings from the female connector it is important to position a replacement part between the female connector and the measuring instrument. The replacement part consists of a piece of cable with a cable terminal at one end. Never insert an object into the female connector. There is a risk of damaging the female connector.
Shake the cable lightly and pull on connectors during measurement to locate the damage.
If the reading is not correct, replace the cable and/or continue according to Contact Resistance And Oxidation .