LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Geo >> 1989 >> Spectrum L4-91.5 1.5L >> Repair and Diagnosis >> Powertrain Management >> Tools and Equipment >> Circuit Tester
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit Tester

Circuit Tester:






Used to check all relays and solenoids before connecting them to a new Control Module. Measures the circuit resistance and indicates pass or fail via green or red LED. Amber LED indicates current polarity. Can also be used as a non-powered continuity checker.