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Home / DTC / C1210 — Rear Right(RR) Sensor-Speed Jump | Wheel Speed Sensor Rear-RH Range / Performance / Intermittent

C1210 — Rear Right(RR) Sensor-Speed Jump | Wheel Speed Sensor Rear-RH Range / Performance / Intermittent

Detailed page for trouble code C1210.

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Code

C1210

HYUNDAI C — Chassis

Rear Right(RR) Sensor-Speed Jump | Wheel Speed Sensor Rear-RH Range / Performance / Intermittent

Brand: HYUNDAI
Type: C — Chassis
AI status
Completed
ready
Completed 100%
Page language: EN

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

  1. Safety first: lift and support vehicle securely before working near wheels.
  2. Clear codes and perform a controlled road test while monitoring live wheel speed readings to confirm the fault returns.
  3. Visually inspect the RR sensor, connector, and tone/reluctor ring for damage, debris, missing teeth, or excessive corrosion.
  4. With connector disconnected, check for proper reference voltage/pull-up (for active sensors) and ground at harness using a meter.
  5. 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.
  6. Check sensor resistance/continuity per service info. If open or out of range, replace the sensor.
  7. If waveform shows noise or intermittent signal, flex the harness and connector to look for intermittent wiring faults; repair/replace wiring as required.
  8. Inspect/replace tone ring or clean off metal debris/rust; ensure correct air gap and secure sensor mounting.
  9. Check wheel bearing and hub for axial/radial play; replace bearing if excessive movement affects sensor gap.
  10. 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

C1211 C1220 C1230 C1240 C1250
371

Browse 371 HYUNDAI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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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

Brand: LAND ROVER
Type: C — Chassis
AI status
Completed
ready
Completed 100%
Page language: EN

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

  1. Safety first: lift and support vehicle securely before working near wheels.
  2. Clear codes and perform a controlled road test while monitoring live wheel speed readings to confirm the fault returns.
  3. Visually inspect the RR sensor, connector, and tone/reluctor ring for damage, debris, missing teeth, or excessive corrosion.
  4. With connector disconnected, check for proper reference voltage/pull-up (for active sensors) and ground at harness using a meter.
  5. 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.
  6. Check sensor resistance/continuity per service info. If open or out of range, replace the sensor.
  7. If waveform shows noise or intermittent signal, flex the harness and connector to look for intermittent wiring faults; repair/replace wiring as required.
  8. Inspect/replace tone ring or clean off metal debris/rust; ensure correct air gap and secure sensor mounting.
  9. Check wheel bearing and hub for axial/radial play; replace bearing if excessive movement affects sensor gap.
  10. 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

C1211 C1220 C1230 C1240 C1250
320

Browse 320 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

LAND ROVER

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Code

C1210

MITSUBISHI C — Chassis

RR wheel speed sensor

Brand: MITSUBISHI
Type: C — Chassis
AI status
Completed
ready
Completed 100%
Page language: EN

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

  1. Safety first: lift and support vehicle securely before working near wheels.
  2. Clear codes and perform a controlled road test while monitoring live wheel speed readings to confirm the fault returns.
  3. Visually inspect the RR sensor, connector, and tone/reluctor ring for damage, debris, missing teeth, or excessive corrosion.
  4. With connector disconnected, check for proper reference voltage/pull-up (for active sensors) and ground at harness using a meter.
  5. 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.
  6. Check sensor resistance/continuity per service info. If open or out of range, replace the sensor.
  7. If waveform shows noise or intermittent signal, flex the harness and connector to look for intermittent wiring faults; repair/replace wiring as required.
  8. Inspect/replace tone ring or clean off metal debris/rust; ensure correct air gap and secure sensor mounting.
  9. Check wheel bearing and hub for axial/radial play; replace bearing if excessive movement affects sensor gap.
  10. 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

C1211 C1220 C1230 C1240 C1250
406

Browse 406 MITSUBISHI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

MITSUBISHI

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Code

C1210

Other C — Chassis

ABS Outlet Valve Coil RF Circuit Failure

Brand: Other
Type: C — Chassis
AI status
Completed
ready
Completed 100%
Page language: EN

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

  1. Safety first: lift and support vehicle securely before working near wheels.
  2. Clear codes and perform a controlled road test while monitoring live wheel speed readings to confirm the fault returns.
  3. Visually inspect the RR sensor, connector, and tone/reluctor ring for damage, debris, missing teeth, or excessive corrosion.
  4. With connector disconnected, check for proper reference voltage/pull-up (for active sensors) and ground at harness using a meter.
  5. 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.
  6. Check sensor resistance/continuity per service info. If open or out of range, replace the sensor.
  7. If waveform shows noise or intermittent signal, flex the harness and connector to look for intermittent wiring faults; repair/replace wiring as required.
  8. Inspect/replace tone ring or clean off metal debris/rust; ensure correct air gap and secure sensor mounting.
  9. Check wheel bearing and hub for axial/radial play; replace bearing if excessive movement affects sensor gap.
  10. 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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