Guitar Resistance & Continuity Measurement Reference

Resistance: Opposition measured in ohms with the circuit disconnected and unpowered. A pickup DCR reading is not its frequency-dependent impedance or an output rating.
Continuity: A low-resistance path judged against the meter behavior and an explicit threshold. A beep alone does not identify which contacts are connected.
OL / open: No measurable path in the selected range. Record the meter display and range rather than substituting an arbitrary large number.
Lead resistance: The reading with probes shorted together. Subtract it from low-ohm cable and ground-path comparisons, never from an unrelated kΩ component claim without recording the method.
Parallel loading: In-circuit paths can reduce a reading. For two known parallel resistances, R = 1 / (1/R1 + 1/R2).
Contact map: A position-by-position record of closed lug pairs. It describes measured switch behavior, not a wiring recommendation.

Temperature, probe contact, control position, parallel components, auto-ranging delay, and meter resolution can change a reading. Repeat the test and preserve raw measurements. Follow the passive electronics measurement guide.

Never use resistance or continuity mode on an energized circuit. This reference excludes active electronics, amplifiers, power supplies, capacitors with stored charge, mains equipment, and insulation-safety testing.

Scope of this reference

Define resistance, continuity, open circuit, lead compensation, parallel loading, and passive-test limits. Use Guitar Resistance & Continuity Measurement Reference to make a repeatable decision for this named task, not to impose one specification on every instrument.

Practical example

A 0.5 Ω cable path measured with 0.2 Ω shorted leads has about 0.3 Ω attributable to the tested path under that meter setup. By contrast, OL is a display state, not a very large number to enter into arithmetic, and pickup DCR is not AC impedance or output.

Record the conditions

For Guitar Resistance & Continuity Measurement Reference, write down instrument type, tuning, installed strings, relevant hardware, climate when material, physical datum, unit, tool resolution, and the result before and after change. A result from this reference is comparable only when its method travels with the number.

Verification checklist

For Guitar Resistance & Continuity Measurement Reference, confirm the starting state and exact question.
Repeat its critical measurements from the same reference.
Compare its result with direct observation and applicable maker documentation.
Change one reversible variable where the task permits.
Retest the named symptom and preserve unresolved exceptions.

Related workflow

cable ground continuity checker — continue when that page answers the next unresolved measurement or decision.
pickup dcr analyzer — continue when that page answers the next unresolved measurement or decision.
potentiometer taper analyzer — continue when that page answers the next unresolved measurement or decision.

Limits

Guitar Resistance & Continuity Measurement Reference cannot inspect hidden structure, material condition, service history, or player technique. Stop this reference workflow for electrical hazards, abnormal resistance, structural movement, conflicting readings, or unplanned material removal.