C0041moderate severityChassis
Right Front Wheel Speed Signal Erratic
on 2002 Volvo S80 2.9L I6 · AWD
What this code means
Erratic signal from right front wheel speed sensor.
Symptoms
- ABS activating unexpectedly
- ABS light on
Common causes
- Cracked tone ring
- Debris
- Worn bearing
Diagnostic steps
- Scope signal
- Inspect tone ring
- Check bearing
Repair notes
Clean or replace sensor/tone ring.
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Any of these will read and clear this code — pick by how deep you want to go.
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ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
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Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
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Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
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Other Chassis codes on this vehicle
C0021
LF Wheel Speed Sensor Range/Performance
C0021
LF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
C0025
LF Wheel Speed Sensor Circuit Intermittent