No-Load Test
WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2001 Toyota Tundra, 2001 Toyota Tacoma, 2001 Toyota Sienna, 2001 Toyota Sequoia, and 2001 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect battery-to-generator terminal "B" wire. See Fig 1. Using an ammeter and voltmeter, connect negative ammeter lead to disconnected generator terminal "B" wire end, and connect positive ammeter lead to generator terminal "B".
- Connect voltmeter positive lead to generator terminal "B" and negative lead to ground. See Fig 1. Start engine and increase engine speed to 2000 RPM. Both meters should read within specification. See GENERATOR REGULATED OUTPUT SPECIFICATIONS table. If voltage is more than specified, replace IC regulator. If voltage is less than specified, go to next step.
- Locate small hole in back of generator. See Fig 2. It may be necessary to remove generator end cover to access hole in back of generator. Using a probe, ground (full field) generator terminal "F" to generator case. See Fig 2. If voltage is more than specified range, replace IC regulator. If voltage is less than specified range, repair or replace generator.
GENERATOR REGULATED OUTPUT SPECIFICATIONS (1)
| Application | Amps | Volts | |||
|---|---|---|---|---|---|
| Avalon, Celica, Highlander, Land Cruiser, LX 470, RAV4, Sequoia, Sienna & Tundra | 10 Or Less | 13.2-14.8 | |||
| Camry, Camry Solara, Corolla & ECHO | 10 Or Less | 13.5-15.1 | |||
| MR2 | 10 Or Less | 13.2-14.0 | |||
| Tacoma | |||||
| With Temperature At 77°F (25°C) | 10 Or Less | 13.8-14.7 | |||
| 4Runner | |||||
| With Temperature At 77°F (25°C) | 10 Or Less | 13.7-14.7 | |||
| With Temperature At 239°F (115°C) | 10 Or Less | 13.2-14.0 | |||
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