Golf buggy solenoid clicks but won't move

Written by the Hawke Electric Vehicles Service Team

Confirm the symptom

This guide is for a golf buggy where pressing the pedal produces a clear click from the solenoid under the seat, but the buggy does not move. That click is the important detail: it tells you the coil is being energised and pulling the contacts together, so the coil circuit and everything feeding it, from the key switch to the throttle input, is working. The fault is downstream of the click.

If there is no click at all when you press the pedal, you are on the wrong guide: the coil circuit is not being completed, and No click when pressing the pedal tests it from the pedal back. If the dash lights do not even come on, start instead with Golf buggy won't start, which walks the whole no-start chain. If you are not sure whether the lights work and simply want the overview, Powers on but won't move sorts the drive path by the click. This guide follows the click path, and the meter procedure it relies on is set out in full in Testing and replacing a solenoid.

What causes it

Burned or pitted solenoid contacts

Burned contacts are the reason a clicking solenoid gives no drive in most cases. Inside the solenoid, the coil pulls a moving contact against two fixed studs to join the large terminals. Every time it opens under load it draws a small arc, and over thousands of cycles that arc pits and coats the contacts with resistance. Eventually they still touch, and still click, but no longer pass the heavy current the motor needs.

This voltage-drop test is the definitive check, and the full method, including the coil resistance test and safe replacement with the pack isolated, is in Testing and replacing a solenoid. When you fit a new solenoid, make the main connections tight and clean, because loose or high-resistance connections are what burns contacts in the first place.

Low pack voltage that clicks but cannot drive

A pack that is low but not quite dead can still energise the coil and click, because the coil draws very little current, while having nothing left to move the motor. This is why a flat pack sometimes looks like a solenoid fault, and it is worth ruling out before you order parts, since it costs only a meter reading.

Charge the pack fully and retest; the guide on testing batteries with a multimeter covers finding a single failed battery. If the click and no-drive persist with a healthy, fully charged pack, move on to the contacts.

A controller output stage fault

Once the solenoid has closed, the controller has to switch pack current to the motor. A controller with a failed output stage can leave the solenoid clicking and closing while no drive current reaches the motor. It is less common than burned contacts, which is why it sits below them, but it is the next suspect once the contacts test good.

Use the reset procedures guide to clear a latched fault before assuming the controller has failed. Controller replacement is an advanced job with stored voltage and heavy current, so if the evidence points here, it is a sensible point to bring in an engineer.

A motor fault

If the solenoid closes, the contacts pass current and the controller is healthy, the remaining link is the motor itself. Worn brushes, an open winding or an internal short can stop a motor turning even when full current arrives, and a motor that hums without turning is a strong sign the fault has reached this far.

Motor brush inspection and bench-testing are advanced procedures covered in their own guides. A seized brake or a stripped input spline can also stop a motor turning, so the motor humming guide is worth reading before the motor is removed.

An open field resistor on older carts

Some older resistor-coil buggies use a resistor in the solenoid or field circuit, and if it fails open the solenoid can still click while drive is lost. It is an uncommon cause limited to specific older designs, but it is worth knowing about when a modern fault chart does not fit an older vehicle.

Because this only applies to particular older designs, check your vehicle's wiring before assuming a resistor is present. If it is fitted and has failed, replacement matches the original value.

When to book an engineer

Book an engineer if the contacts test burned and you would rather not replace the solenoid, if the contacts test good and the fault points at the controller output or the motor, or if an older resistor-coil circuit is involved and you are unsure of the wiring. The voltage-drop test tells you cheaply whether it is the solenoid, and that alone can save replacing a controller or a motor that was never at fault.

Every guide is written from manufacturer service documentation and workshop practice, then reviewed before publication. Read how we write and review our repair guides.