Ninety-Eight V6-3800 3.8L Supercharged (1993)
Grounded Circuit
GROUNDED CIRCUIT
A grounded circuit is like a short circuit but the current flows directly into a ground circuit that is not part of the original circuit. This may be caused by a
wire rubbing against the frame or body. Sometimes a wire will break and fall against metal that is connected electrically to the ground side of the voltage
supply. A grounded circuit may also be caused by deposits of oil, dirt, or moisture around connections or terminals, which provide a good path to
ground.
Intermittents and Poor Connections
Intermittents and Poor Connections
Most intermittents are usually caused by faulty electrical connections or wiring, although occasionally a sticking relay, solenoid, or loose ground point
can be a problem.
Handling and Measuring Procedures
Fig. 1 ESD Symbol
Fig. 2 Typical Schematic W/ESD Symbol
ELECTROSTATIC DISCHARGE (ESD) SENSITIVE DEVICES
All ESD sensitive components are Solid State and the following information applies to them. The ESD symbol, Fig. 1, is used on schematics to
indicate which components are ESD sensitive, Fig. 2. When handling any electronic part, the service technician should follow the guidelines
below to reduce any possible electrostatic charge build-up on the service technician's body and the electronic part in the dealership. If it is not
known whether or not a component is ESD sensitive, assume that it is.
HANDLING PROCEDURES
1. Always touch a known good ground before handling the part. This should be repeated while handling the part and more frequently after sliding
across the seat, sitting down from a standing position or walking the distance.
2. Avoid touching electrical terminals of the part, unless so instructed by a written diagnostic procedure.
3. When using a voltmeter be sure to connect the ground lead first.
4. Do not open package until it is time to install the part.
5. Before removing the part from its package, ground the package to a known good ground on the vehicle.
MEASURING PROCEDURES
