U0418 — Invalid Data Received From Brake System Control Module

vehicle network

Is it safe to drive?

Drive with caution The base brakes usually still work, so careful driving is possible — but ABS and stability control are disabled, which lengthens stopping distances on slippery roads. Fix promptly and avoid harsh driving.

How to diagnose with an OBD scanner

  1. Read the code and freeze frame Connect an OBD2 scanner, confirm U0418 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many U0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the ABS / stability control for damage, corrosion, chafing or poor contact.
  4. Subsystem check Read all four wheel speed PIDs while driving slowly — the faulty sensor drops out or reads implausibly.
  5. Subsystem check Inspect the sensor and tone ring for metal debris and damage near the hub.
  6. Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm U0418 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for U0418 (parts and labor, USD, independent shop rates): Replace a wheel speed sensor: $120–$350; ABS module repair or replacement: $400–$1,200; Repair sensor wiring: $80–$250. Overall, fixing U0418 usually costs between $80 and $1,200. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

How much does it cost to fix U0418?

Replace a wheel speed sensor — $120–$350; ABS module repair or replacement — $400–$1,200; Repair sensor wiring — $80–$250. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.

What does OBD2 code U0418 mean?

Invalid Data Received From Brake System Control Module (U0418): a vehicle network fault affecting the ABS / stability control. Short, gentle driving to a shop is usually possible. Most often caused by failed wheel speed sensor, damaged sensor wiring or corroded connector, blown fuse or low voltage to the ABS module.

What are the symptoms of U0418?

Drivers most often notice: brake pedal pulsation changes, ABS not operating during hard braking, stability control disabled message, speedometer or cruise control issues.

Is it safe to drive with U0418?

The base brakes usually still work, so careful driving is possible — but ABS and stability control are disabled, which lengthens stopping distances on slippery roads. Fix promptly and avoid harsh driving.

How do I diagnose U0418 myself?

Start with a scan: confirm U0418, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the ABS / stability control, and verify the suspect component against live data before buying parts.

What does U0418 mean?

U0418 is logged by the onboard diagnostics when the ABS / stability control does not behave as expected. The official definition is “Invalid Data Received From Brake System Control Module”. This is a vehicle network category code.

The module monitors this system continuously while driving. When readings fall outside the expected range for a defined number of drive cycles, it stores U0418 and switches on the warning light. Freeze frame data saved with the code shows the exact conditions — rpm, load, temperature, speed — at the moment the fault was detected, which is the best starting point for diagnosis.

What causes U0418?

  • faulty ABS module or pump motor
  • damaged sensor wiring or corroded connector
  • failed wheel speed sensor
  • blown fuse or low voltage to the ABS module

Common symptoms of U0418

  • brake pedal pulsation changes
  • ABS not operating during hard braking
  • stability control disabled message
  • speedometer or cruise control issues
  • ABS or ESC warning light on

How to diagnose U0418

  1. Connect an OBD2 scanner, confirm U0418 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many U0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Visually inspect the wiring harness and connectors related to the ABS / stability control for damage, corrosion, chafing or poor contact.
  4. Read all four wheel speed PIDs while driving slowly — the faulty sensor drops out or reads implausibly.
  5. Inspect the sensor and tone ring for metal debris and damage near the hub.
  6. Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm U0418 does not return.

How to fix U0418

Start with the cheapest and most common causes before replacing expensive parts:

  • Replace a wheel speed sensor — $120–$350
  • ABS module repair or replacement — $400–$1,200
  • Repair sensor wiring — $80–$250

How much does it cost to fix U0418?

Repair cost depends on which component actually failed. Typical scenarios for U0418 (parts and labor, USD, independent shop rates):

  • Replace a wheel speed sensor: $120–$350
  • ABS module repair or replacement: $400–$1,200
  • Repair sensor wiring: $80–$250

Overall, fixing U0418 usually costs between $80 and $1,200. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Can you drive with U0418?

The base brakes usually still work, so careful driving is possible — but ABS and stability control are disabled, which lengthens stopping distances on slippery roads. Fix promptly and avoid harsh driving.

Related OBD2 codes