Shimano STEPS
Sensors
W011
No speed signal from speed sensor
The system is not receiving a bicycle speed signal from the speed sensor. Because the system cannot verify the riding speed, the maximum speed up to which assist is provided is lowered. The usual cause is a shifted spoke magnet or a wrongly positioned or disconnected sensor.
- Drive system
- Shimano STEPS
- Category
- Sensors
- Motor behavior
- assist reduced
- DIY-friendly?
- possible
Roadside self-help
- Check that the spoke magnet sits directly opposite the sensor and has not rotated away; realign it if needed.
- Restart the system after correcting the magnet position.
- If the warning remains, have the sensor mounting and wiring checked by a dealer.
Possible causes
- Spoke or disc magnet shifted out of position high
- Speed sensor not mounted in the correct location or wrong gap to magnet medium
- Damaged or disconnected sensor cable medium
Symptoms
- Assist cuts out above a low speed
- Speed reading missing or implausible on the display
Inspection / repair
- Difficulty: easy
- DIY: possible
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E5000
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