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HOMESERVICE MANUALSACURA19983.5RL SPECIAL EDITIONREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 29 (GENERATORS & REGULATORS)ON-VEHICLE TESTINGGENERATOR/REGULATOR OUTPUT TEST
1998 Acura 3.5RL Special Edition

Generator/Regulator Output Test

1998 Acura 3.5RL Special EditionSECTION Generator/Regulator Output Test
WARNING: This page is about a different car, the 1998 Acura 3.2TL. However, it is still accessible from the selected car via links, so may be relevant.
  1. Test system using a generator tester with carbon pile. Hook up tester according to manufacturer's instructions. Start engine and operate at 3000 RPM until radiator fan comes on, then let engine idle. Increase engine speed to 2000 RPM and hold. Observe voltmeter. If voltage is more than 15.1 volts, replace voltage regulator.
  2. If voltage is 15.1 volts or less, return engine to idle. Ensure all accessories are off. Connect inductive pick-up over generator terminal "B" (battery terminal wire). See Figure . Ensure arrow on inductive pick-up points away from generator.
  3. Increase engine speed to 2000 RPM and hold. Observe voltmeter. If voltage is 13.5 volts or more, go to next step. If voltage is less than 13.5 volts, test and repair generator components as necessary. Repeat voltage test.
  4. While observing ammeter, apply load with generator tester carbon pile until battery voltage drops to 12-13.5 volts. If less than 75 amps exist, go to next step. If more than 75 amps exist, charging system is functioning properly.
    CAUTION: Voltage will increase rapidly during full field test. DO NOT allow voltage to exceed 18 volts. Damage to electrical system may result.
  5. With engine speed still at 2000 RPM, full field generator. Insert test probe into full field access hole, located on back of generator. See Figure . If 75 amps or more exist, go to next step . If less than 75 amps exist, test and repair generator components. See BENCH TESTING  .
  6. Return engine to idle. Turn ignition switch to OFF position. Disconnect generator 4-pin harness connector. Turn ignition switch to ON position. Measure voltage between ground and generator 4-pin harness connector Black/Yellow and White/Green wires, individually (terminals No. 1 and 2 on 3.5RL; terminal No. 1 and 3 on 3.2TL). See Figure . If battery voltage exists, replace voltage regulator. If battery voltage does not exist, repair open in Black/Yellow wire.
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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