The measurement method of the Great Wall Fengjun 5 generator is as follows:
1. Turn the multimeter knob to the 30V DC voltage range, connect the red test lead to the "armature" terminal of the generator and the black test lead to the case. Let the engine run at a higher than average speed.
2. The 2V electrical system voltage value should be around 14V and the 24V electrical system voltage value should be around 28V. If the measured voltage is the battery voltage, it means the generator the car. is broken.