SW1 L4-1.9L SOHC VIN 8 (1996)
NOTICE: Do not push multimeter probes into the connector terminals.
These devices are made of a short length of wire, a terminal, and a diagnostic service probe or an alligator clip. The terminals may be obtained from the
service parts cut lead kits or from a scrap wiring harness.
They have a dual purpose. The first being to aid in measuring voltage, resistance, or current at a connector. Since diagnostic service probes are limited to
use on 0.35, 0.50 and 0.80 mm, (22, 20 and 18 gage) thin wall wire, many of the wires cannot be probed without disconnecting the connector. But,
probing the terminal could spread the contacts and damage them. Once a contact is damaged it is very difficult to make good contact with a male
terminal. By constructing a jumper, the probe can make excellent contact with the circuit through the diagnostic service probe or the alligator clip, and
the terminal won't be damaged.
The second function is to determine if a terminal's contacts have been spread apart, making an open or intermittent open. This is known as a terminal
tightness test. Connector terminals make contact with the pin by means of a tang which is sprung against the pin. If the tang is spread apart by a meter
probe, the tang will not spring back to tightly grip the pin. Test this by inserting the jumper pin and removing it, noting how well the terminal holds the
pin. It should be held well enough that the pin will not fall out of the terminal.
Digital Multimeter
Digital Multimeter
Digital multimeters approved for use on Saturn vehicles must have an input impedance of ten megohms (10,000,000 ohms). Input impedance is listed in
the multimeter's owner guide.
IMPORTANT: The input impedance of a multimeter stands for the resistance between the red and black leads, only when you are measuring voltage.
When measuring resistance, the only resistance other than in the circuit being measured is in the actual leads being used.
A digital multimeter performs all the tests that a test light can perform, with a greater degree of accuracy. In addition, a multimeter can be used to test for
current flow in a circuit.
IMPORTANT: Always follow the manufacturers recommendation when checking for current. All multimeters have a maximum current rating, do not
