Electrical - Wire Probing Device

91cadillac04

NO.: 91-1-52
DATE: May, 1991
GROUP: 8
CORP. NO.: 118101R


SUBJECT:
PROPER PROCEDURES WHEN PROBING WIRING FOR
DIAGNOSIS ON ALL CADILLAC MODELS


Occasionally, proper diagnosis of an electrical problem requires probing electrical circuits for voltage or resistance measurements. Most often this can be accomplished by probing the metal terminal at a connection point. However, there are times when it is easier to probe individual wires with a sharp instrument.

Figure 1:

NOTICE: If a wire is probed with a sharp instrument and not properly sealed afterward, the wire will corrode and an open circuit will result. Refer to Figure 1.

Figure 2:

Diagnostic test probes are now available that allow you to probe individual wires without leaving the wire open to the environment. These probe devices are inexpensive and easy to install, and they permanently seal the wire from corrosion. Figure 2 shows how to install and use the probe device. They are available through GMSPO under the following part numbers:

For 18 (.8 sq.mm), 20 (.5 sq.mm), and 22 (.35 sq.mm) gage wires use P/N 12092782.