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Home >> Lexus >> 2004 >> ES 330 >> Repair and Diagnosis >> External Pages >> Different car >> Section 106 (Generators & Regulators) >> On-Vehicle Testing >> Load Test
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Load Test

WARNING: This page is about a different car, the 2004 Lexus LS 430 and 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If battery is fully charged, generator load test results may be less than 30 amps.
  1. Connect an ammeter as described in NO-LOAD TEST, step  1. Start engine. Turn on high beam headlights and place heater blower switch on HI. Increase engine speed to 2000 RPM.
  2. Check ammeter reading. See GENERATOR SPECIFICATIONS . If amperage is less than specified, repair or replace generator.