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Home / DTC / C1405 — Inappropriate tire diameter

C1405 — Inappropriate tire diameter

Detailed page for trouble code C1405.

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C1405

MITSUBISHI C — Chassis

Inappropriate tire diameter

Brand: MITSUBISHI
Type: C — Chassis
Views: UK: 10 EN: 16 RU: 13
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Mismatched tire size or section width (one or more tires different from others)
  • Significant tire wear or damaged tire altering effective diameter
  • Incorrect replacement tires, spare or temporary donut fitted
  • Different wheel/rim diameter or offset changing effective circumference
  • Incorrect tire pressure or severe underinflation on one wheel
  • Snow chains, heavy mud, or debris trapped on a wheel

Symptoms

  • ABS, VSC/ASC or traction control warning lamp illuminated
  • Speedometer or odometer reading inconsistent or fluctuating
  • Intermittent or constant traction/stability interventions
  • Cruise control may be unavailable or switch off
  • Possible steering pull or uneven braking felt during ABS activation

What to check

  • Retrieve stored codes and freeze frame using a diagnostic scanner; note conditions when C1405 set
  • Visually inspect all four tires and spare: sidewall markings (size), tread depth and condition
  • Compare tire sizes and part numbers on all wheels; check for mismatched DOT size codes
  • Measure tire pressures and inflate to specification; inspect for bulges, cuts or uneven wear
  • Check for snow chains, mud, debris, or adhered items on wheels/tone rings
  • Inspect wheels and rims for aftermarket sizing or different offsets

Signal parameters

  • Wheel speed sensor waveform: clean, regular pulses proportional to wheel RPM
  • Active sensors: typically a square wave 0–5/12 V; passive sensors: AC sine/triangle typically 0.1–1.5 V AC at low speed—amplitude increases with speed
  • Pulse frequency should be the same for left/right axle at equal wheel RPM and proportional across all wheels for the same vehicle speed
  • Tone ring pulses per revolution must match expected tooth count; a missing/extra pulse will alter computed speed

Diagnostic algorithm

  1. Connect a full-function diagnostic scanner; record C1405 and any related ABS/VSC codes and freeze-frame data.
  2. Visually compare tire sizes (example marking format: 205/55R16) and check tread depths; measure actual rolling circumference if available.
  3. Verify tire pressures and correct to manufacturer specs; re-check code after pressure correction and short drive.
  4. Inspect wheels, rims and tires for physical damage, mounted snow chains or debris; remove any debris and re-test.
  5. Inspect wheel speed sensors and tone rings: look for missing teeth, heavy rust, bent sensors, loose or corroded connectors.
  6. Using an oscilloscope or live-data on the scanner, compare wheel speed sensor waveforms and frequencies at low steady speed; identify any sensor producing different pulse rate for same vehicle speed.
  7. If a mismatched tire is confirmed, fit matching tires or replace incorrect tire(s). If tire/wheel is correct but signals differ, repair/replace faulty sensor or tone ring as required.
  8. After repairs, clear codes and perform a road test with scanner monitoring wheel speeds to confirm consistent readings and ensure C1405 does not return.
  9. If vehicle has been lifted or gearing modified, consult manufacturer for reprogramming/calibration of ABS/VSC as required.

Likely causes

  • One tire replaced with a different size or profile
  • Spare/temporary tire installed and driven several miles
  • One wheel heavily underinflated or damaged (bubble, severe wear)
  • Foreign material on wheel/tone ring or missing/damaged tone ring teeth
  • Aftermarket wheels with different circumference or incorrect gearing effect

Fault status

⚠️ Status
ABS/VSC detected inconsistent wheel speed consistent with inappropriate tire diameter; stability/traction functions may be limited.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

C0035 C0040 C0045 C0050 C1201
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Code

C1405

Other C — Chassis

Traction Control Valve Rear Circuit Open

Brand: Other
Type: C — Chassis
Views: UK: 16 EN: 17 RU: 14
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Mismatched tire size or section width (one or more tires different from others)
  • Significant tire wear or damaged tire altering effective diameter
  • Incorrect replacement tires, spare or temporary donut fitted
  • Different wheel/rim diameter or offset changing effective circumference
  • Incorrect tire pressure or severe underinflation on one wheel
  • Snow chains, heavy mud, or debris trapped on a wheel

Symptoms

  • ABS, VSC/ASC or traction control warning lamp illuminated
  • Speedometer or odometer reading inconsistent or fluctuating
  • Intermittent or constant traction/stability interventions
  • Cruise control may be unavailable or switch off
  • Possible steering pull or uneven braking felt during ABS activation

What to check

  • Retrieve stored codes and freeze frame using a diagnostic scanner; note conditions when C1405 set
  • Visually inspect all four tires and spare: sidewall markings (size), tread depth and condition
  • Compare tire sizes and part numbers on all wheels; check for mismatched DOT size codes
  • Measure tire pressures and inflate to specification; inspect for bulges, cuts or uneven wear
  • Check for snow chains, mud, debris, or adhered items on wheels/tone rings
  • Inspect wheels and rims for aftermarket sizing or different offsets

Signal parameters

  • Wheel speed sensor waveform: clean, regular pulses proportional to wheel RPM
  • Active sensors: typically a square wave 0–5/12 V; passive sensors: AC sine/triangle typically 0.1–1.5 V AC at low speed—amplitude increases with speed
  • Pulse frequency should be the same for left/right axle at equal wheel RPM and proportional across all wheels for the same vehicle speed
  • Tone ring pulses per revolution must match expected tooth count; a missing/extra pulse will alter computed speed

Diagnostic algorithm

  1. Connect a full-function diagnostic scanner; record C1405 and any related ABS/VSC codes and freeze-frame data.
  2. Visually compare tire sizes (example marking format: 205/55R16) and check tread depths; measure actual rolling circumference if available.
  3. Verify tire pressures and correct to manufacturer specs; re-check code after pressure correction and short drive.
  4. Inspect wheels, rims and tires for physical damage, mounted snow chains or debris; remove any debris and re-test.
  5. Inspect wheel speed sensors and tone rings: look for missing teeth, heavy rust, bent sensors, loose or corroded connectors.
  6. Using an oscilloscope or live-data on the scanner, compare wheel speed sensor waveforms and frequencies at low steady speed; identify any sensor producing different pulse rate for same vehicle speed.
  7. If a mismatched tire is confirmed, fit matching tires or replace incorrect tire(s). If tire/wheel is correct but signals differ, repair/replace faulty sensor or tone ring as required.
  8. After repairs, clear codes and perform a road test with scanner monitoring wheel speeds to confirm consistent readings and ensure C1405 does not return.
  9. If vehicle has been lifted or gearing modified, consult manufacturer for reprogramming/calibration of ABS/VSC as required.

Likely causes

  • One tire replaced with a different size or profile
  • Spare/temporary tire installed and driven several miles
  • One wheel heavily underinflated or damaged (bubble, severe wear)
  • Foreign material on wheel/tone ring or missing/damaged tone ring teeth
  • Aftermarket wheels with different circumference or incorrect gearing effect

Fault status

⚠️ Status
ABS/VSC detected inconsistent wheel speed consistent with inappropriate tire diameter; stability/traction functions may be limited.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

C0035 C0040 C0045 C0050 C1201
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