Toggle Side Panel

Shopping Cart

No products in the basket.

Shopping Cart

No products in the basket.

Close search
Home / DTC / C1385 — Wheel Speed Sensor Circuit Fault

C1385 — Wheel Speed Sensor Circuit Fault

Detailed page for trouble code C1385.

34,405codes
59brands
11,914generic
22,491specific
All codes P-codes (Powertrain) B-codes (Body) C-codes (Chassis) U-codes (Network/User) Tesla Alerts
Reset
Code

C1385

Generic C — Chassis

Wheel Speed Sensor Circuit Fault

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

Causes

  • Damaged or contaminated wheel speed sensor
  • Broken/frayed wiring, chafed insulation or damaged connector
  • Corroded or loose connector pins or poor ground
  • Missing, damaged or heavily corroded tone ring/reluctor
  • Sensor air gap out of specification or magnetized sensor degraded
  • Intermittent short to battery or ground, or high circuit resistance

Symptoms

  • ABS warning lamp illuminated
  • Traction control/ESC warning light may be on or system disabled
  • Erratic or non-functioning speedometer (on some vehicles)
  • Uncommanded ABS activation, pulsing brakes, or reduced braking performance
  • Intermittent faults that clear when moving or after driving through water
  • Stored freeze frame or live data showing missing/low frequency sensor signal

What to check

  • Read ABS/BCM/TCU trouble codes and freeze frame with a capable scan tool
  • Inspect sensor, connector and wiring harness at the affected wheel for damage, corrosion or looseness
  • Visually inspect tone ring/reluctor for missing or damaged teeth, rust, or debris
  • Backprobe connector with ignition ON and wiggle harness to check for intermittent faults
  • Measure sensor resistance and compare to manufacturer spec
  • Check sensor output while wheel is rotated (oscilloscope or multimeter AC measurement for passive sensors; DC or waveform for active sensors)

Signal parameters

  • Passive (variable reluctance) sensors: DC resistance typically ~500–2000 Ω (manufacturer dependent); generate AC voltage pulses whose amplitude increases with wheel speed (examples: ~0.1–2.0 Vrms at low speeds).
  • Active (Hall/VR with amplifier) sensors: require reference supply (commonly 5 V) and output a square or pulse waveform ~0–5 V (some systems use 0–12 V).
  • Typical tone ring air gap: roughly 0.5–2.0 mm (vehicle-specific).
  • Frequency: proportional to wheel speed — a few Hz at very low speeds up to several hundred Hz at highway speeds. Verify with vehicle service data for exact values.

Diagnostic algorithm

  1. Use a scan tool to capture the specific wheel(s) flagged and to view live wheel speed sensor data and freeze frame. Note whether the signal is absent, intermittent, low amplitude, or noisy.
  2. Visually inspect the sensor, connector, wiring along the harness to the ABS module and the tone ring for physical damage, contamination or missing teeth. Repair visible issues.
  3. With ignition ON (engine off), backprobe the sensor connector. For active sensors verify reference voltage (typically 5 V) and ground; for passive sensors measure DC resistance and compare to spec. Replace if out of range.
  4. Rotate the wheel (or lift vehicle safely on a hoist) and observe sensor output with an oscilloscope or a multimeter AC reading. Passive sensors should produce an AC waveform; active sensors should produce a switching waveform. Look for clean pulses without dropouts.
  5. Check continuity and insulation of wiring from sensor to ABS module; look for shorts to chassis ground or battery. Wiggle harness while monitoring to find intermittent faults.
  6. Verify tone ring condition and sensor air gap; correct spacing and repair/replace tone ring if teeth damaged or missing.
  7. If wiring and sensor test good but fault persists, verify ABS module inputs and grounds; consider resistance checks at module connector. If module input is confirmed open/short internally, module replacement or repair may be required.
  8. After repairs, clear codes, perform a road test and re-scan to confirm code does not return and that wheel speed readings are consistent across all wheels.

Likely causes

  • Sensor wiring harness rubbed through at suspension or steering joint
  • Connector contaminated with water/road salt causing high resistance or intermittent contact
  • Physical damage to sensor during brake/axle service or wheel hub replacement
  • Tone ring teeth chipped, missing, or contaminated with rust/debris causing no/irregular pulses

Fault status

⚠️ Status
ABS/Traction control module reports a fault on a wheel speed sensor circuit (C1385). The circuit is indicating open, short, no signal or irregular signal. Inspect sensor, tone ring, wiring/connectors, and module inputs.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

C0035 C0040 C0045 C0050 P0500
9,416

The library contains 9,416 repair and diagnostic manuals. Choose a brand to open the full manual tree by year, model and trim.

ALFA ROMEO
89
AUDI
1,243
BMW
479
CADILLAC
206
CHEVROLET
456
CHRYSLER
193
DAEWOO
75
FIAT
26
GENESIS
207
HUMMER
138
HYUNDAI
371
ISUZU
86
KIA
142
LAND ROVER
320
LEXUS
280
LINCOLN
166
MERCEDES-BENZ
856
MERCURY
296
MITSUBISHI
406
PORSCHE
136
TESLA
58
TOYOTA
2,209
TRIUMPH
131
VOLKSWAGEN
626
VOLVO
221
Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email
Code

C1385

HYUNDAI C — Chassis

Vacuum Sensor-Electrical

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

Causes

  • Damaged or contaminated wheel speed sensor
  • Broken/frayed wiring, chafed insulation or damaged connector
  • Corroded or loose connector pins or poor ground
  • Missing, damaged or heavily corroded tone ring/reluctor
  • Sensor air gap out of specification or magnetized sensor degraded
  • Intermittent short to battery or ground, or high circuit resistance

Symptoms

  • ABS warning lamp illuminated
  • Traction control/ESC warning light may be on or system disabled
  • Erratic or non-functioning speedometer (on some vehicles)
  • Uncommanded ABS activation, pulsing brakes, or reduced braking performance
  • Intermittent faults that clear when moving or after driving through water
  • Stored freeze frame or live data showing missing/low frequency sensor signal

What to check

  • Read ABS/BCM/TCU trouble codes and freeze frame with a capable scan tool
  • Inspect sensor, connector and wiring harness at the affected wheel for damage, corrosion or looseness
  • Visually inspect tone ring/reluctor for missing or damaged teeth, rust, or debris
  • Backprobe connector with ignition ON and wiggle harness to check for intermittent faults
  • Measure sensor resistance and compare to manufacturer spec
  • Check sensor output while wheel is rotated (oscilloscope or multimeter AC measurement for passive sensors; DC or waveform for active sensors)

Signal parameters

  • Passive (variable reluctance) sensors: DC resistance typically ~500–2000 Ω (manufacturer dependent); generate AC voltage pulses whose amplitude increases with wheel speed (examples: ~0.1–2.0 Vrms at low speeds).
  • Active (Hall/VR with amplifier) sensors: require reference supply (commonly 5 V) and output a square or pulse waveform ~0–5 V (some systems use 0–12 V).
  • Typical tone ring air gap: roughly 0.5–2.0 mm (vehicle-specific).
  • Frequency: proportional to wheel speed — a few Hz at very low speeds up to several hundred Hz at highway speeds. Verify with vehicle service data for exact values.

Diagnostic algorithm

  1. Use a scan tool to capture the specific wheel(s) flagged and to view live wheel speed sensor data and freeze frame. Note whether the signal is absent, intermittent, low amplitude, or noisy.
  2. Visually inspect the sensor, connector, wiring along the harness to the ABS module and the tone ring for physical damage, contamination or missing teeth. Repair visible issues.
  3. With ignition ON (engine off), backprobe the sensor connector. For active sensors verify reference voltage (typically 5 V) and ground; for passive sensors measure DC resistance and compare to spec. Replace if out of range.
  4. Rotate the wheel (or lift vehicle safely on a hoist) and observe sensor output with an oscilloscope or a multimeter AC reading. Passive sensors should produce an AC waveform; active sensors should produce a switching waveform. Look for clean pulses without dropouts.
  5. Check continuity and insulation of wiring from sensor to ABS module; look for shorts to chassis ground or battery. Wiggle harness while monitoring to find intermittent faults.
  6. Verify tone ring condition and sensor air gap; correct spacing and repair/replace tone ring if teeth damaged or missing.
  7. If wiring and sensor test good but fault persists, verify ABS module inputs and grounds; consider resistance checks at module connector. If module input is confirmed open/short internally, module replacement or repair may be required.
  8. After repairs, clear codes, perform a road test and re-scan to confirm code does not return and that wheel speed readings are consistent across all wheels.

Likely causes

  • Sensor wiring harness rubbed through at suspension or steering joint
  • Connector contaminated with water/road salt causing high resistance or intermittent contact
  • Physical damage to sensor during brake/axle service or wheel hub replacement
  • Tone ring teeth chipped, missing, or contaminated with rust/debris causing no/irregular pulses

Fault status

⚠️ Status
ABS/Traction control module reports a fault on a wheel speed sensor circuit (C1385). The circuit is indicating open, short, no signal or irregular signal. Inspect sensor, tone ring, wiring/connectors, and module inputs.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

C0035 C0040 C0045 C0050 P0500
371

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

HYUNDAI

Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email
Code

C1385

MITSUBISHI C — Chassis

Yaw rate sensor

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

Causes

  • Damaged or contaminated wheel speed sensor
  • Broken/frayed wiring, chafed insulation or damaged connector
  • Corroded or loose connector pins or poor ground
  • Missing, damaged or heavily corroded tone ring/reluctor
  • Sensor air gap out of specification or magnetized sensor degraded
  • Intermittent short to battery or ground, or high circuit resistance

Symptoms

  • ABS warning lamp illuminated
  • Traction control/ESC warning light may be on or system disabled
  • Erratic or non-functioning speedometer (on some vehicles)
  • Uncommanded ABS activation, pulsing brakes, or reduced braking performance
  • Intermittent faults that clear when moving or after driving through water
  • Stored freeze frame or live data showing missing/low frequency sensor signal

What to check

  • Read ABS/BCM/TCU trouble codes and freeze frame with a capable scan tool
  • Inspect sensor, connector and wiring harness at the affected wheel for damage, corrosion or looseness
  • Visually inspect tone ring/reluctor for missing or damaged teeth, rust, or debris
  • Backprobe connector with ignition ON and wiggle harness to check for intermittent faults
  • Measure sensor resistance and compare to manufacturer spec
  • Check sensor output while wheel is rotated (oscilloscope or multimeter AC measurement for passive sensors; DC or waveform for active sensors)

Signal parameters

  • Passive (variable reluctance) sensors: DC resistance typically ~500–2000 Ω (manufacturer dependent); generate AC voltage pulses whose amplitude increases with wheel speed (examples: ~0.1–2.0 Vrms at low speeds).
  • Active (Hall/VR with amplifier) sensors: require reference supply (commonly 5 V) and output a square or pulse waveform ~0–5 V (some systems use 0–12 V).
  • Typical tone ring air gap: roughly 0.5–2.0 mm (vehicle-specific).
  • Frequency: proportional to wheel speed — a few Hz at very low speeds up to several hundred Hz at highway speeds. Verify with vehicle service data for exact values.

Diagnostic algorithm

  1. Use a scan tool to capture the specific wheel(s) flagged and to view live wheel speed sensor data and freeze frame. Note whether the signal is absent, intermittent, low amplitude, or noisy.
  2. Visually inspect the sensor, connector, wiring along the harness to the ABS module and the tone ring for physical damage, contamination or missing teeth. Repair visible issues.
  3. With ignition ON (engine off), backprobe the sensor connector. For active sensors verify reference voltage (typically 5 V) and ground; for passive sensors measure DC resistance and compare to spec. Replace if out of range.
  4. Rotate the wheel (or lift vehicle safely on a hoist) and observe sensor output with an oscilloscope or a multimeter AC reading. Passive sensors should produce an AC waveform; active sensors should produce a switching waveform. Look for clean pulses without dropouts.
  5. Check continuity and insulation of wiring from sensor to ABS module; look for shorts to chassis ground or battery. Wiggle harness while monitoring to find intermittent faults.
  6. Verify tone ring condition and sensor air gap; correct spacing and repair/replace tone ring if teeth damaged or missing.
  7. If wiring and sensor test good but fault persists, verify ABS module inputs and grounds; consider resistance checks at module connector. If module input is confirmed open/short internally, module replacement or repair may be required.
  8. After repairs, clear codes, perform a road test and re-scan to confirm code does not return and that wheel speed readings are consistent across all wheels.

Likely causes

  • Sensor wiring harness rubbed through at suspension or steering joint
  • Connector contaminated with water/road salt causing high resistance or intermittent contact
  • Physical damage to sensor during brake/axle service or wheel hub replacement
  • Tone ring teeth chipped, missing, or contaminated with rust/debris causing no/irregular pulses

Fault status

⚠️ Status
ABS/Traction control module reports a fault on a wheel speed sensor circuit (C1385). The circuit is indicating open, short, no signal or irregular signal. Inspect sensor, tone ring, wiring/connectors, and module inputs.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

C0035 C0040 C0045 C0050 P0500
406

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

MITSUBISHI

Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email

Report

Harassment or bullying behavior
Contains mature or sensitive content
Contains misleading or false information
Contains abusive or derogatory content
Contains spam, fake content or potential malware

Block Member?

Please confirm you want to block this member.

You will no longer be able to:

  • See blocked member's posts
  • Mention this member in posts
  • Invite this member to groups
  • Message this member
  • Add this member as a connection

Please note: This action will also remove this member from your connections and send a report to the site admin. Please allow a few minutes for this process to complete.

Report

You have already reported this .