What final verification should be performed after repairing a parasitic electrical draw?

• A. Retest parasitic draw with ignition off, isolate circuits if needed, locate source, repair, and verify alternator charging.
• B. Ignore the charging system and rely on battery voltage alone.
• C. Only test the battery voltage at rest and stop there.
• D. Test by driving the vehicle for 100 miles without checking the charging system.

Answer: (D)

Final verification after repairing a parasitic draw is to confirm the problem is resolved and the charging system is functioning properly. Start by rechecking the parasitic draw with the ignition off to ensure it is within the manufacturer’s spec. If the draw is still higher than allowed, isolate circuits, locate the source, perform the repair, and recheck until the draw stays within spec. Once the draw is within tolerance, verify the charging system by starting the engine and measuring the voltage at the battery; you should see a proper alternator output, typically around 13.8–14.8 volts, indicating the system is charging. A quick drive test helps confirm the battery remains charged under load and that voltage stays stable. This sequence ensures both the parasitic drain is eliminated and the charging system keeps the battery healthy.