Code
C1210
HYUNDAI
C — Chassis
Rear Right(RR) Sensor-Speed Jump | Wheel Speed Sensor Rear-RH Range / Performance / Intermittent
Views:
UK: 18
EN: 83
RU: 31
AI status
Completed
Completed
100%
Causes
- Damaged or contaminated wheel speed sensor (RR)
- Damaged tone/reluctor ring (missing or broken teeth) at RR hub
- Intermittent or corroded connector/wiring (open, short to ground, short to battery, or high resistance)
- Faulty wheel bearing causing excessive air gap or sensor movement
- Poor sensor mounting or incorrect sensor-to-reluctor air gap
- Interference from nearby damaged wiring or metal debris
Symptoms
- ABS, ESC, or traction control warning lamp illuminated
- Intermittent ABS activation or loss of ABS/ESC functionality
- Inconsistent speed reading for rear-right wheel on scan tool
- Possible ABS noise or pulsation when fault is present
- Vehicle stability or traction interventions behaving erratically
What to check
- Retrieve freeze frame and live data for all wheel speed sensors with a scan tool
- Visually inspect RR sensor, tone ring, and wiring for physical damage, debris, or oil contamination
- Check connector condition for corrosion, bent pins, or moisture; unplug and inspect contacts
- Wiggle harness and connector while monitoring live data to reproduce intermittent jump
- Measure sensor supply/reference and signal with a multimeter or oscilloscope at the connector
- Measure sensor resistance/continuity (if applicable) and compare to known-good or service spec
Signal parameters
- Active Hall-effect (common): 5V reference present; signal toggles between ~0.5V and ~4.5V as teeth pass the sensor; frequency increases with speed
- Passive (VR) type: AC sine wave whose amplitude and frequency increase with wheel speed (low amplitude at low speed)
- Expected clean, repeatable waveform without dropouts, spikes, or long flat sections; intermittent gaps or noise indicate a problem
- Resistance: sensor winding should show continuity (open = fault); high/variable resistance can indicate internal damage (compare to spec if available)
Diagnostic algorithm
- Safety first: lift and support vehicle securely before working near wheels.
- Clear codes and perform a controlled road test while monitoring live wheel speed readings to confirm the fault returns.
- Visually inspect the RR sensor, connector, and tone/reluctor ring for damage, debris, missing teeth, or excessive corrosion.
- With connector disconnected, check for proper reference voltage/pull-up (for active sensors) and ground at harness using a meter.
- Back-probe the signal wire and observe on an oscilloscope (preferred) or multimeter while spinning the wheel slowly. Look for consistent pulses without noise or dropouts.
- Check sensor resistance/continuity per service info. If open or out of range, replace the sensor.
- If waveform shows noise or intermittent signal, flex the harness and connector to look for intermittent wiring faults; repair/replace wiring as required.
- Inspect/replace tone ring or clean off metal debris/rust; ensure correct air gap and secure sensor mounting.
- Check wheel bearing and hub for axial/radial play; replace bearing if excessive movement affects sensor gap.
- After repairs, clear codes and confirm with road test and live-data/scope verification that RR wheel speed signal is stable and code does not return.
Likely causes
- Contaminated or physically damaged RR sensor
- Corroded/loose connector at RR sensor harness
- Reluctor ring damage or heavy rust/debris
- Intermittent wiring break or chafing in harness near wheel/hub
Fault status
Status
Rear Right wheel speed sensor signal intermittent or out of expected range. ABS/ESC may be degraded. Inspect RR sensor, wiring, connector, and tone ring.
Repair difficulty: Medium
Diagnostic time: 1.0 - 2.5 hours
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Code
C1210
LAND ROVER
C — Chassis
Outlet valve right front Right front intake valve wheel speed Left wheel speed signal is missing speed of the right wheel
Views:
UK: 10
EN: 28
RU: 20
AI status
Completed
Completed
100%
Causes
- Damaged or contaminated wheel speed sensor (RR)
- Damaged tone/reluctor ring (missing or broken teeth) at RR hub
- Intermittent or corroded connector/wiring (open, short to ground, short to battery, or high resistance)
- Faulty wheel bearing causing excessive air gap or sensor movement
- Poor sensor mounting or incorrect sensor-to-reluctor air gap
- Interference from nearby damaged wiring or metal debris
Symptoms
- ABS, ESC, or traction control warning lamp illuminated
- Intermittent ABS activation or loss of ABS/ESC functionality
- Inconsistent speed reading for rear-right wheel on scan tool
- Possible ABS noise or pulsation when fault is present
- Vehicle stability or traction interventions behaving erratically
What to check
- Retrieve freeze frame and live data for all wheel speed sensors with a scan tool
- Visually inspect RR sensor, tone ring, and wiring for physical damage, debris, or oil contamination
- Check connector condition for corrosion, bent pins, or moisture; unplug and inspect contacts
- Wiggle harness and connector while monitoring live data to reproduce intermittent jump
- Measure sensor supply/reference and signal with a multimeter or oscilloscope at the connector
- Measure sensor resistance/continuity (if applicable) and compare to known-good or service spec
Signal parameters
- Active Hall-effect (common): 5V reference present; signal toggles between ~0.5V and ~4.5V as teeth pass the sensor; frequency increases with speed
- Passive (VR) type: AC sine wave whose amplitude and frequency increase with wheel speed (low amplitude at low speed)
- Expected clean, repeatable waveform without dropouts, spikes, or long flat sections; intermittent gaps or noise indicate a problem
- Resistance: sensor winding should show continuity (open = fault); high/variable resistance can indicate internal damage (compare to spec if available)
Diagnostic algorithm
- Safety first: lift and support vehicle securely before working near wheels.
- Clear codes and perform a controlled road test while monitoring live wheel speed readings to confirm the fault returns.
- Visually inspect the RR sensor, connector, and tone/reluctor ring for damage, debris, missing teeth, or excessive corrosion.
- With connector disconnected, check for proper reference voltage/pull-up (for active sensors) and ground at harness using a meter.
- Back-probe the signal wire and observe on an oscilloscope (preferred) or multimeter while spinning the wheel slowly. Look for consistent pulses without noise or dropouts.
- Check sensor resistance/continuity per service info. If open or out of range, replace the sensor.
- If waveform shows noise or intermittent signal, flex the harness and connector to look for intermittent wiring faults; repair/replace wiring as required.
- Inspect/replace tone ring or clean off metal debris/rust; ensure correct air gap and secure sensor mounting.
- Check wheel bearing and hub for axial/radial play; replace bearing if excessive movement affects sensor gap.
- After repairs, clear codes and confirm with road test and live-data/scope verification that RR wheel speed signal is stable and code does not return.
Likely causes
- Contaminated or physically damaged RR sensor
- Corroded/loose connector at RR sensor harness
- Reluctor ring damage or heavy rust/debris
- Intermittent wiring break or chafing in harness near wheel/hub
Fault status
Status
Rear Right wheel speed sensor signal intermittent or out of expected range. ABS/ESC may be degraded. Inspect RR sensor, wiring, connector, and tone ring.
Repair difficulty: Medium
Diagnostic time: 1.0 - 2.5 hours
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Code
C1210
MITSUBISHI
C — Chassis
RR wheel speed sensor
Views:
UK: 11
EN: 28
RU: 23
AI status
Completed
Completed
100%
Causes
- Damaged or contaminated wheel speed sensor (RR)
- Damaged tone/reluctor ring (missing or broken teeth) at RR hub
- Intermittent or corroded connector/wiring (open, short to ground, short to battery, or high resistance)
- Faulty wheel bearing causing excessive air gap or sensor movement
- Poor sensor mounting or incorrect sensor-to-reluctor air gap
- Interference from nearby damaged wiring or metal debris
Symptoms
- ABS, ESC, or traction control warning lamp illuminated
- Intermittent ABS activation or loss of ABS/ESC functionality
- Inconsistent speed reading for rear-right wheel on scan tool
- Possible ABS noise or pulsation when fault is present
- Vehicle stability or traction interventions behaving erratically
What to check
- Retrieve freeze frame and live data for all wheel speed sensors with a scan tool
- Visually inspect RR sensor, tone ring, and wiring for physical damage, debris, or oil contamination
- Check connector condition for corrosion, bent pins, or moisture; unplug and inspect contacts
- Wiggle harness and connector while monitoring live data to reproduce intermittent jump
- Measure sensor supply/reference and signal with a multimeter or oscilloscope at the connector
- Measure sensor resistance/continuity (if applicable) and compare to known-good or service spec
Signal parameters
- Active Hall-effect (common): 5V reference present; signal toggles between ~0.5V and ~4.5V as teeth pass the sensor; frequency increases with speed
- Passive (VR) type: AC sine wave whose amplitude and frequency increase with wheel speed (low amplitude at low speed)
- Expected clean, repeatable waveform without dropouts, spikes, or long flat sections; intermittent gaps or noise indicate a problem
- Resistance: sensor winding should show continuity (open = fault); high/variable resistance can indicate internal damage (compare to spec if available)
Diagnostic algorithm
- Safety first: lift and support vehicle securely before working near wheels.
- Clear codes and perform a controlled road test while monitoring live wheel speed readings to confirm the fault returns.
- Visually inspect the RR sensor, connector, and tone/reluctor ring for damage, debris, missing teeth, or excessive corrosion.
- With connector disconnected, check for proper reference voltage/pull-up (for active sensors) and ground at harness using a meter.
- Back-probe the signal wire and observe on an oscilloscope (preferred) or multimeter while spinning the wheel slowly. Look for consistent pulses without noise or dropouts.
- Check sensor resistance/continuity per service info. If open or out of range, replace the sensor.
- If waveform shows noise or intermittent signal, flex the harness and connector to look for intermittent wiring faults; repair/replace wiring as required.
- Inspect/replace tone ring or clean off metal debris/rust; ensure correct air gap and secure sensor mounting.
- Check wheel bearing and hub for axial/radial play; replace bearing if excessive movement affects sensor gap.
- After repairs, clear codes and confirm with road test and live-data/scope verification that RR wheel speed signal is stable and code does not return.
Likely causes
- Contaminated or physically damaged RR sensor
- Corroded/loose connector at RR sensor harness
- Reluctor ring damage or heavy rust/debris
- Intermittent wiring break or chafing in harness near wheel/hub
Fault status
Status
Rear Right wheel speed sensor signal intermittent or out of expected range. ABS/ESC may be degraded. Inspect RR sensor, wiring, connector, and tone ring.
Repair difficulty: Medium
Diagnostic time: 1.0 - 2.5 hours
Similar codes
Your experience will help others
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Was this AI description helpful?
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Code
C1210
Other
C — Chassis
ABS Outlet Valve Coil RF Circuit Failure
Views:
UK: 21
EN: 50
RU: 62
AI status
Completed
Completed
100%
Causes
- Damaged or contaminated wheel speed sensor (RR)
- Damaged tone/reluctor ring (missing or broken teeth) at RR hub
- Intermittent or corroded connector/wiring (open, short to ground, short to battery, or high resistance)
- Faulty wheel bearing causing excessive air gap or sensor movement
- Poor sensor mounting or incorrect sensor-to-reluctor air gap
- Interference from nearby damaged wiring or metal debris
Symptoms
- ABS, ESC, or traction control warning lamp illuminated
- Intermittent ABS activation or loss of ABS/ESC functionality
- Inconsistent speed reading for rear-right wheel on scan tool
- Possible ABS noise or pulsation when fault is present
- Vehicle stability or traction interventions behaving erratically
What to check
- Retrieve freeze frame and live data for all wheel speed sensors with a scan tool
- Visually inspect RR sensor, tone ring, and wiring for physical damage, debris, or oil contamination
- Check connector condition for corrosion, bent pins, or moisture; unplug and inspect contacts
- Wiggle harness and connector while monitoring live data to reproduce intermittent jump
- Measure sensor supply/reference and signal with a multimeter or oscilloscope at the connector
- Measure sensor resistance/continuity (if applicable) and compare to known-good or service spec
Signal parameters
- Active Hall-effect (common): 5V reference present; signal toggles between ~0.5V and ~4.5V as teeth pass the sensor; frequency increases with speed
- Passive (VR) type: AC sine wave whose amplitude and frequency increase with wheel speed (low amplitude at low speed)
- Expected clean, repeatable waveform without dropouts, spikes, or long flat sections; intermittent gaps or noise indicate a problem
- Resistance: sensor winding should show continuity (open = fault); high/variable resistance can indicate internal damage (compare to spec if available)
Diagnostic algorithm
- Safety first: lift and support vehicle securely before working near wheels.
- Clear codes and perform a controlled road test while monitoring live wheel speed readings to confirm the fault returns.
- Visually inspect the RR sensor, connector, and tone/reluctor ring for damage, debris, missing teeth, or excessive corrosion.
- With connector disconnected, check for proper reference voltage/pull-up (for active sensors) and ground at harness using a meter.
- Back-probe the signal wire and observe on an oscilloscope (preferred) or multimeter while spinning the wheel slowly. Look for consistent pulses without noise or dropouts.
- Check sensor resistance/continuity per service info. If open or out of range, replace the sensor.
- If waveform shows noise or intermittent signal, flex the harness and connector to look for intermittent wiring faults; repair/replace wiring as required.
- Inspect/replace tone ring or clean off metal debris/rust; ensure correct air gap and secure sensor mounting.
- Check wheel bearing and hub for axial/radial play; replace bearing if excessive movement affects sensor gap.
- After repairs, clear codes and confirm with road test and live-data/scope verification that RR wheel speed signal is stable and code does not return.
Likely causes
- Contaminated or physically damaged RR sensor
- Corroded/loose connector at RR sensor harness
- Reluctor ring damage or heavy rust/debris
- Intermittent wiring break or chafing in harness near wheel/hub
Fault status
Status
Rear Right wheel speed sensor signal intermittent or out of expected range. ABS/ESC may be degraded. Inspect RR sensor, wiring, connector, and tone ring.
Repair difficulty: Medium
Diagnostic time: 1.0 - 2.5 hours
Similar codes
Your experience will help others
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Was this AI description helpful?
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👍 Like
0
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0
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