I mean that there should be 36 V positive at the small terminal with yellow wire when you press the gas pedal with the key on and cart in gear. When I say check to see that positive and negative exist at the small terminals. Most of the conversations here assume a certain level of experience with DC electric exists. All of these switches must work before the (+) side of the solenoid activation is delivered to one of the small posts (red wire) The switches are activated in this order: Reed switch – F&R micro switch(ms) – key switch – Foot or pedal box switch. This circuit consists of a series of switches and is easily traced using the solenoid activation circuit diagrams available on the forum. If (+) and (-) are not present at the small terminals when the pedal is pressed, a problem exists within the solenoid activation circuit. When the small terminals have (+) and (-) to them the solenoid should CLICK and pack voltage should be present at both large terminals. You should always have pack voltage (+) on the side connected to the batteries. Solenoid test is done with the resistor removed from one large terminal. If the voltage is the same as the battery voltage with the resistor disconnected the solenoid contacts are welded, replace the solenoid. If the reading is more than 3 volts less the battery voltage, the resistor is faulty. With the resistor in place the reading should be 0.1 to 3 volts less than battery voltage. Place the (+) probe to the controller side of the solenoid's large post. Key switch ON, gear selector in FORWARD, Place the (+) probe on the battery side of the solenoid's large post (If the reading is below battery voltage, check cable connections between solenoid and Main (+). (This reading is the Battery pack voltage and is often referred to as pack voltage. (This probe will on the post for the rest of the testing procedures) Connect (+) probe to the Battery Pack Positive (+) battery post. PLACE THE REAR OF THE CART SECURELY ON JACK STANDS FOR SAFETYĬonnect (-) probe of meter on Battery Pack main Negative (-) post. These tests are to be conducted after making sure all wires and cable connections are clean and tight. Testing of the EZGO ELECTRONIC SPEED CONTROL - SERIES Drive system.ĪLWAYS DISCONNECT THE NEGATIVE BATTERY CABLE BEFORE REMOVING CONTROLLER COVER. If you have not done so - go to the speed controller main page for flow chart identification. Diagnostic testing for Ezgo Solid State speed Control Systems.
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