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Troubleshooting

Juiced CrossCurrent X and RipCurrent S: error 4 or 5, throttle fault at startup

On a Juiced CrossCurrent X or RipCurrent S, error 4 means the throttle wasn't at rest when the bike started, and error 5 means the throttle or its cable may be damaged. Power on hands off, check the throttle returns, then check its cable.

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You switch on your Juiced CrossCurrent X or RipCurrent S and the Advanced Matrix Display shows error 4 or error 5, and the throttle does nothing. Both manuals describe error 4 as an open throttle fault, where the throttle has not returned to its rest position at startup, and error 5 as a throttle fault, where the throttle may be damaged (CrossCurrent X manual, RipCurrent S manual). Short answer: for error 4, the throttle was pressed or stuck slightly open when you switched on. For error 5, suspect a damaged throttle or throttle cable.

A throttle that sticks open can launch the bike. If the throttle doesn't snap back on its own, don't ride until it's fixed. Leave wiring repairs to a shop.

Most likely cause

The controller checks the throttle at power on and refuses to start if it reads the throttle as already open. That protects you from the bike moving on its own. Error 4 is that check failing (RipCurrent S manual). Common reasons are a thumb resting on the throttle as you switch on, a throttle that has picked up grit and returns slowly, or a grip, bag or mirror pressing on it. Error 5 points at the throttle itself or its cable, which the CrossCurrent X manual says may be damaged (CrossCurrent X manual).

Other causes to rule out

  • A cable pinched where the bars turn, or chafed at the head tube.
  • A loose or wet throttle connector.
  • Brake sensors engaged, which the manuals list for throttle and pedal assist not working (CrossCurrent X manual). That usually shows as no power rather than error 4. See check the brake cut-off and throttle.

How to confirm

  1. Switch off. Take your hands off the bars and switch on again without touching the throttle. If error 4 is gone, it was a held throttle.
  2. Press and release the throttle a few times with the bike off. It should snap back to rest on its own every time.
  3. Move anything that touches the throttle housing, and check that the grip or brake lever clamp hasn't slid into it.
  4. With the battery off, follow the throttle cable from the bars down. Look for kinks, cuts or crushed spots, especially where it bends as you steer.
  5. Unplug the throttle connector you can reach without tools, check for bent pins or moisture, and reconnect it firmly. See inspect and clean connectors.
  6. Switch on and retest. If error 5 returns, plan on a new throttle.

Fix options

Power on hands off and free the throttle (easy)

Free. Clean around the throttle with a dry cloth so it returns smoothly. Don't spray lubricant into it.

Reseat the throttle plug (easy)

Free. A good habit after any handlebar work.

Replace the throttle (moderate)

A throttle that won't return or keeps throwing error 5 needs replacing. Contact Juiced through its help center for the matching part for your model. The help center also lists a twist throttle under its gear with its own instructions, so ask Juiced which throttle fits your bike before buying. Fitting one means moving grips and controls on the bar and routing the cable, which a shop can do quickly.

Cable repair (pro)

If the throttle is fine but its cable is damaged, a shop should handle the repair. Don't splice wires yourself.

Parts

  • Throttle
  • E-bike connectors

When to get a pro

Get help right away if the throttle ever sticks open while riding, or if the motor runs with no throttle input. See throttle not working and Juiced Bikes troubleshooting.

Sources

Stuck after these checks? Find a shop near you.

Need a pro?

If these steps didn't fix it, find a shop near you in our partner network. For battery or wiring trouble, look for shops marked Battery and electrical.

Talk

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