LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chrysler >> 1982 >> Imperial >> Repair and Diagnosis >> Electrical >> Charging Systems >> Alternators >> Bench Testing >> Rectifier (Diode) Tests >> Test Lamp Method
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test Lamp Method

  1. Remove nuts from studs on terminal block securing stator windings and positive and negative rectifier straps.
  2. Test rectifiers with a 12 volt battery and test lamp equipped with a No. 67 bulb. Connect one test lamp lead to positive battery post and other lead to test probe. Attach second probe to battery negative terminal. Measure rectifier continuity with probes touching heat sink and rectifier top strap.
  3. Now reverse probes. If lamp lights with current flow in one direction only, rectifier is satisfactory. If lamp lights with probes either way, rectifier is shorted. If lamp does not light either way, rectifier is open. Test each rectifier in both assemblies. Replace defective rectifiers. Lamp should light in same direction for all rectifiers of each assembly.
scientia non olet · About LEMON Manuals