Alternator and Regulator Circuit Troubleshooting
|1.||Be sure the battery is sufficiently charged.|
|2.||Hook up the following equipment:|
|3.||Start the engine. Hold the engine at 3,000 rpm (min-1) with no load shift lever in Park or Neutral, until the radiator fan comes on then let it idle.|
|4.||Raise the engine speed to 2,000 rpm (min-1) and hold it there.|
|5.||Turn the headlights (high beam) on, and measure voltage at the alternator terminal.|
Is the voltage between 13.9 and 15.1 V?
YES - Go to 6.
|6.||Read the voltage at 13.5 V.|
NOTE: Adjust the voltage by turning the blower motor, rear window defogger, brake lights and etc. ON.
Is the amperage 87.5 A or more?
YES - The charging system is OK. Go to alternator control circuit troubleshooting.n