OBD-II Code C1335: Rear Right Wheel Speed Sensor Circuit Fault

What Does C1335 Mean?

Code C1335 means your vehicle's Anti-lock Braking System (ABS) control module detects a fault in the electrical circuit for the rear right wheel speed sensor. This sensor reports the rotational speed of the rear right wheel to the computer. When this signal is lost, erratic, or implausible, the computer disables safety systems depending on this data, such as ABS and traction control, and illuminates dashboard warning lights.

Technical definition: The SAE/ISO definition for C1335 is a fault in the rear right wheel speed sensor circuit. Manufacturers often specify further: Peugeot/Citroen defines it as "Rear RH Wheel Speed Sensor Signal Fault - short circuit to positive/earth or open circuit," while Hyundai/Kia simplifies it to "Rear Right Sensor Fault." It is functionally identical to the generic SAE code C003A.

Can I Drive With C1335?

Yes, But With Caution. Yes, but drive with extreme caution for short distances to a repair shop. Your standard brakes function, but critical safety systems (ABS and Traction/Stability Control) are disabled. During a panic stop, your wheels lock up, preventing you from steering to avoid obstacles. On loose surfaces like gravel, stopping distances increase by over 20%. Ignoring the issue leads to unpredictable brake behavior and masks other potential brake system warnings.

Common Causes

• Damaged or Corroded Wiring Harness/Connector (Very Common) — Wires leading to the sensor are exposed to road debris, moisture, and constant suspension movement. Wires break internally, chafe against the frame, or corrode at connection points. This is the primary cause on Peugeot, Citroen, and Ford Ranger models.
• Faulty Rear Right Wheel Speed Sensor (Common) — The sensor fails from age, internal short circuits, heat damage, or contamination from metallic debris. On makes like Hyundai and Kia, an internal sensor fault is the most probable cause.
• Contaminated or Damaged ABS Reluctor Ring (Common) — The sensor reads a toothed or magnetic ring (reluctor ring) on the wheel hub or axle. If this ring is cracked, covered in thick rust or metallic brake dust 🎬 Watch: How to replace a faulty ABS sensor and reluctor ring, or missing teeth, the sensor cannot produce a clean signal.
• Rust Buildup Under Sensor Mounting Point ('Rust Jacking') (Less Common) — On vehicles like Honda and GM, rust accumulates on the steering knuckle where the sensor bolts down. This corrosion physically pushes the sensor away from the reluctor ring, increasing the air gap and causing a weak signal.
• Worn or Failed Wheel Bearing/Hub Assembly (Less Common) — A worn wheel bearing introduces excessive play or 'wobble' in the hub, altering the gap between the sensor and the reluctor ring. On many modern vehicles, the sensor is integrated into the hub assembly, necessitating full replacement.
• Incorrect Wheel Bearing Installation (Less Common) — Modern wheel bearings often have a magnetic encoder ring built into one side. If a new bearing is pressed into the hub backwards, the sensor has no ring to read, triggering the code immediately after a DIY repair.
• Faulty ABS Control Module (Rare) — In rare instances, the sensor and wiring are fine, but the ABS computer itself has a fault on the specific circuit for the right rear wheel. Consider this only after exhaustively testing all other possibilities.

Symptoms

• ABS and Traction/Stability Control Lights Illuminated — The ABS light and systems like TCS, ESC, VSA, or StabiliTrak turn on and stay on after the vehicle's startup self-test, as they depend on accurate wheel speed data.
• ABS and Traction Control Disabled — During hard braking, especially on wet or loose surfaces, the wheels lock up and skid. You lose the ability to steer during a panic stop, and the brake pedal does not pulsate.
• Erratic Brake Pedal Pulsation or Grinding Noise at Low Speeds — An erratic signal from a failing sensor tricks the ABS module into thinking a wheel is slipping at low speeds (e.g., during slow turns), causing the ABS pump to activate unnecessarily.
• Inaccurate or Inoperative Speedometer — On certain vehicles, notably Subaru models, the vehicle speed signal derives from the rear wheel speed sensors. A fault causes the speedometer to read incorrectly or stop working.
• Related System Warnings (Hill Start, Parking Brake, etc.) — A wheel speed sensor fault disables other related systems, triggering warnings for Hill Start Assist, the electronic parking brake, or collision avoidance systems.

Diagnostic Flowchart

Tap your situation to follow the diagnostic path that matches what you're seeing on this code.

Common Fixes & Costs

• Repairing Damaged Wiring / Replacing Connector Pigtail — Parts: $10-$50, Labor: $150-$300 (1-2 hours shop time), ~1.5 hr book time (Intermediate)
• Replacing the Rear Right Wheel Speed Sensor — Parts: $40-$200, Labor: $100-$200 (0.8-1.2 hours shop time), ~1 hr book time (DIY)
  Peugeot Partner/Citroen Berlingo (2008-2018): OEM 4545.E8, 9813764880 (Alt: Bosch: 0986594562, Delphi: SS20049)
  Honda Civic (2006-2011): OEM 57470-SMG-E01 (Alt: Denso: DABS033, Holstein: 2ABS0549)
• Cleaning the ABS Reluctor Ring and Sensor Mounting Surface — Parts: $5-$15, Labor: $100-$200 (0.8-1.5 hours shop time), ~1.2 hr book time (DIY)
• Replacing the Rear Wheel Bearing/Hub Assembly — Parts: $150-$450, Labor: $200-$450 (1.5-3.0 hours shop time), ~2.2 hr book time (Professional)
  Honda Civic (2012-2015): OEM 42200-TR0-A01 (Alt: Timken: HA590452, SKF: BR930845)

DIY vs Professional

• Replacing the Rear Right Wheel Speed Sensor — Beginner: Yes
  Tools: Jack, jack stands, socket set, torque wrench, penetrating oil.
• Cleaning the Reluctor Ring and Sensor Mount — Beginner: Yes
  Tools: Jack, jack stands, socket set, wire brush, brake cleaner.
• Repairing Damaged Wiring / Replacing Pigtail — Beginner: No
  Tools: Soldering iron, wire strippers, heat shrink tubing, multimeter.
• Replacing the Rear Wheel Bearing/Hub Assembly — Beginner: No
  Tools: Large breaker bar, high-torque impact wrench, hub puller, slide hammer, torque wrench.

Used vs. New Parts: Buying Guide

When a used part is worth it: Buying used is never recommended for wheel speed sensors or hub bearings. These are wear-and-tear components where installation labor often exceeds the part cost.

Donor-vehicle mileage cap: roughly under 20000 miles for the part to have meaningful remaining life.

Donor quality checklist:

• Avoid used sensors as their remaining electronic lifespan is unknown.
• Never install a used wheel bearing or hub assembly.
• If considering a used part in an emergency, ensure the part number matches exactly.

Decision logic:

• If The fix is a wheel speed sensor → Buy a new OEM or high-quality aftermarket sensor. The cost savings of a used sensor are negligible compared to the risk.
• If The fix is a wheel hub/bearing assembly → Always buy new. The labor to replace a hub is significant, and a used part has no reliability guarantee.
• If Budget is the primary concern → Choose a new, reputable aftermarket part over a used OEM part to get a warranty and a new wear surface.

Warranty tradeoff: Used parts typically have a 30-90 day warranty covering only the part. New aftermarket parts usually carry a 1-year to limited lifetime warranty.

Worst-case if a used part fails: $300-$600 if a used part fails, including the cost of a new part plus paying for installation labor a second time.

What Happens If You Wait — Timeline

1. 0-2 weeks: Code C1335 is set. ABS, Traction Control, and Stability Control warning lights are constantly illuminated, and the systems are fully disabled. Standard hydraulic brakes function normally. (MPG impact: 0%% · Added cost: $0)
2. 2 weeks - 4 months: Driving without ABS/ESC increases risk in emergency maneuvers. If the root cause is an erratic signal, it causes unwanted, brief ABS pump activation at low speeds, leading to premature brake pad wear. (MPG impact: 0%% · Added cost: $0-$50 (in minor, uneven brake pad wear))
3. 4-12 months: If the underlying cause is a failing wheel bearing, continued driving creates excessive play. This leads to uneven tire wear, and the grinding noise from the bearing becomes pronounced. (MPG impact: 0-1%% · Added cost: $200-$800 (for a new tire and eventual wheel bearing replacement))
4. 12+ months: A severely worn wheel bearing generates extreme heat, damaging the wheel hub and axle spindle. In a worst-case scenario, the bearing seizes completely or disintegrates, leading to wheel separation. (MPG impact: 1-3%% · Added cost: $1000-$2500+ (for replacement of hub, bearing, axle, and potential body/suspension damage))

Cost of Not Fixing It

• Immediate: ABS and Traction/Stability Control systems are disabled. Increased risk of wheel lock-up and skidding during a panic stop or on slippery surfaces. (Added cost: 0)
• 1-6 months: If caused by a bad wheel bearing, continued driving leads to uneven tire wear. If an erratic signal causes unwanted ABS activation, it causes premature wear of the brake pads and rotors on the affected wheel. (Added cost: $200-$800 (for new tires or brake components))
• 6+ months: A severely worn wheel bearing eventually fails completely, leading to wheel separation. Continued exposure of a damaged wiring harness to moisture leads to complex electrical problems. (Added cost: $1500+ (for major suspension repair or accident-related costs))

Diagnosis Steps

1. Read the Fault Codes
   Use an OBD-II scanner that accesses the ABS module to confirm C1335 is present. Note if it's a current or intermittent fault and look for related codes (e.g., C1336 for the other side, or U-codes).
   Tools: OBD-II Scanner (with ABS capability) (Beginner)
2. Analyze Live Data with a Scan Tool
   Use an advanced scanner to view the live data stream for all four wheel speed sensors. Drive the car slowly (under 10 mph) in a straight line. All four sensors should read within 0.5 mph of each other. If the RR reading is zero, erratic, or lags significantly, it confirms the problem is isolated to that corner.
   Tools: Advanced OBD-II Scanner with Live Data (Intermediate)
3. Visually Inspect Wiring, Connector, and Sensor
   Safely raise and support the vehicle. Trace the rear right sensor's wiring harness. Look for obvious chafing, breaks, melted sections, or corrosion, especially where the harness flexes with the suspension. Disconnect the sensor and inspect the connector pins for corrosion or damage.
   Tools: Jack, Jack Stands, Flashlight (Beginner)
4. Inspect the Reluctor Ring and Sensor Mounting
   Visually inspect the ABS reluctor ring (on the axle or hub) for cracks, missing teeth, or heavy rust contamination. Unbolt the sensor and clean its mounting surface on the knuckle with a wire brush to eliminate 'rust jacking' that increases the air gap.
   Tools: Basic hand tools, Wire Brush, Brake Cleaner (Intermediate)
5. Test Passive (2-Wire) Sensor with a Multimeter
   Disconnect the sensor and set your multimeter to Ohms (Ω). A good passive sensor has a resistance between 800-2,500 Ω. A reading of 'OL' or 0 Ω means the sensor is bad. Next, set the meter to AC Volts. Reconnect the probes and spin the wheel by hand. You should see a small voltage generated (above 100mV AC). No voltage indicates a bad sensor or reluctor ring issue.
   Tools: Multimeter, Vehicle-specific service manual (Advanced)
6. Test Active (3-Wire) Sensor Power and Ground
   Refer to a wiring diagram to identify power, ground, and signal wires. With the sensor unplugged and ignition ON, set your multimeter to DC Volts. Probe the power pin; it should read battery voltage (12V) or a reference voltage (5V). Switch to Ohms and probe the ground pin; it should show near-zero resistance. Missing power or ground indicates a wiring harness fault.
   Tools: Multimeter, Vehicle-specific Wiring Diagram (Advanced)
7. Test Wiring Continuity to the ABS Module
   If power/ground is missing, disconnect the battery, the sensor connector, and the main connector at the ABS control module. Use a multimeter set to Ohms to check continuity for each wire from the sensor plug to the module plug. A reading of 'OL' indicates a broken wire that must be repaired.
   Tools: Multimeter, Vehicle-specific Wiring Diagram (Professional)
8. Analyze Sensor Signal with an Oscilloscope (Pro Tip)
   For intermittent faults, back-probe the signal wire at the sensor connector with the ignition on. Spin the wheel by hand. A good passive sensor produces a clean sine wave; an active sensor produces a clean square wave. An erratic signal or dropouts point to a bad sensor, damaged reluctor ring, or excessive air gap.
   Tools: Oscilloscope (Lab Scope), Back-probe pins (Professional)

When This Code Triggers (Freeze-Frame Conditions)

• Vehicle Speed: 15-55 mph (The fault sets when the vehicle is moving, as the ABS module compares the rear right wheel signal to the other three wheels. A discrepancy or zero-reading above 10 mph triggers the code.)
• Brake Status: Off (The code often sets during steady-state driving when brakes are not applied, making erratic signals easier for the module to identify.)
• System Voltage: 12.5-14.5V (Normal operating voltage. Low system voltage is not a typical trigger for a single-wheel fault like C1335.)
• Time Since Engine Start: 1-15 minutes (The fault occurs anytime from the initial self-test upon driving off to intermittently during a trip, often triggered by a bump or moisture.)

Related Codes

• C1336 — This is the identical fault but for the Rear Left (RL) wheel speed sensor. On Toyota/Lexus, this code often means 'Zero Point Calibration Undone'.
• C003A or C0040 — These are the generic SAE J2012 standard codes for 'Right Rear Wheel Speed Sensor Circuit'. They are functionally identical to C1335.
• U0415 — 'Invalid Data Received From ABS Control Module'. This is a secondary communication code logged by other modules receiving bad data from the ABS module. Fix C1335 first.
• C1325 — A general fault code for the rear wheel speed sensor circuit, without specifying left or right. Check circuits for both rear wheels if this is the only code present.

Climate & Environmental Factors

• Cold Weather / Snow and Ice: In freezing temperatures, moisture inside wiring harness connectors freezes and expands, severing connections. Packed snow and ice physically block the sensor's view of the reluctor ring.
• High Humidity / Heavy Rain: Moisture penetrates aging connector seals, causing corrosion on copper pins. This increases resistance in the circuit, weakening the sensor signal until the ABS module flags a fault.
• Road Salt (Rust Belt Regions): Salt spray aggressively attacks the wiring harness, connector pins, and the sensor mounting point, leading to 'rust jacking' and wires rotting from the inside out.

How to Talk to a Mechanic About This Code

Say this: "I have an ABS light on and my scanner shows code C1335 for the rear right wheel speed sensor circuit. I'd like to book a diagnostic appointment. Please check the sensor, wiring harness, and reluctor ring before recommending a part replacement."

This signals you are informed and directs the mechanic to perform a proper diagnosis rather than just replacing the most obvious part.

Avoid saying:

• 'My ABS light is on, can you fix it?' (Too vague, invites unnecessary part replacement).
• 'Just replace the rear right ABS sensor.' (Prevents the mechanic from diagnosing the actual root cause, like a simple wiring issue).
• 'Do whatever you think is best.' (Gives up all control and leads to upselling).

Questions to ask before authorizing the repair:

• Did you see the fault with the live data from the wheel speed sensors? What did the right rear sensor read?
• Did you test the sensor's resistance and voltage output?
• Did you inspect the wiring harness for damage and test continuity back to the ABS module?
• Can you show me the damaged part before I authorize the repair?
• What is the warranty on the parts and labor for this repair?

Where to Take It: Dealer vs Independent vs Chain

• Dealer:
  Best for: Vehicles under warranty., Complex, intermittent electrical faults requiring manufacturer-specific diagnostic tools., Fixes requiring software updates or calibrations (like Toyota/Lexus post-alignment).
  Downsides: Highest labor rates, often 1.5x to 2x more than independent shops., May default to replacing larger, more expensive assemblies instead of repairing a single wire. (Typical cost: +50% vs. baseline)
• Independent Shop: Best fit for most scenarios. A good independent diagnostic shop is perfectly equipped to handle the vast majority of C1335 causes.
  Best for: Out-of-warranty vehicles where cost is a factor., Common faults like a bad sensor, damaged reluctor ring, or visible wiring damage., Shops with good reviews and ASE-certified technicians specializing in diagnostics.
  Downsides: Shop quality and diagnostic skill vary widely., May not have the latest manufacturer-specific tools for deep module diagnostics. (Typical cost: +0% vs. baseline)
• Chain Shop: Use with caution. Acceptable if you have already diagnosed a bad sensor and just need it replaced. AVOID for initial diagnosis of an intermittent C1335 code.
  Best for: Simple, clear-cut part replacements when you are certain of the diagnosis.
  Downsides: Technician skill varies dramatically; may lack experience for complex electrical diagnosis., High pressure to upsell services; may replace a sensor without checking for a wiring break., Less likely to perform detailed diagnostics like continuity tests or oscilloscope analysis. (Typical cost: -10% vs. baseline)

When to Walk Away From the Repair

If the total estimated repair cost exceeds 50% of the car's current private-party value, seriously consider selling or trading in the vehicle instead of repairing it.

• Car worth $4000, fix is $350: Fix it. This is a relatively low-cost repair that restores a critical safety system, making the car safer and preserving its value.
• Car worth $3000, fix is $1800: Walk away. The repair cost is over 50% of the car's value and likely indicates a rare and expensive ABS module failure.

What Scan Tool You Need for This Code

Minimum: A scanner that reads and clears Anti-lock Braking System (ABS) fault codes and views live sensor data. A basic engine-only code reader will NOT work for C1335.

A cheap, engine-only scanner cannot communicate with the ABS module. To diagnose C1335, you must read the specific 'C' code and view the live data stream from all four wheel speed sensors.

Budget: BlueDriver Pro (~$100) — Connects to your smartphone via Bluetooth. It reads and clears ABS codes and displays live data for all four wheel speed sensors, allowing you to see if the right rear sensor reads 0 mph.

Mid-range: Foxwell NT510 Elite (~$180) — A powerful handheld scanner providing deep, manufacturer-specific diagnostics. It offers robust live data graphing and includes bi-directional controls to perform active tests on the ABS module.

Professional: Autel MaxiCOM MK808BT (~$550) — A professional-grade wireless tablet scanner. It provides OE-level diagnostics, fast live data graphing, bi-directional control, and special service functions like ABS brake bleeding.

Rent vs buy: Auto parts stores scan codes for free, but their scanners may not read ABS codes or allow you to watch live data while driving. Buying a capable scanner is a worthwhile investment for any DIYer.

How to Clear the Code After You Fix It

1. Ensure all connections are secure after replacing the faulty component.
2. Reconnect the battery if it was disconnected.
3. Use an OBD-II scan tool with ABS capabilities to access the ABS control module.
4. Select the option to clear/erase fault codes.

Drive cycle (~10 minutes): The ABS system performs a self-test when the ignition turns on and again once the vehicle moves. Start the car and drive it for 5-10 minutes, exceeding 15 mph. If the repair was successful, the ABS light turns off and does not reappear.

Readiness monitors affected: This fault does not directly affect emissions readiness monitors.

Watch out for:

• Disconnecting the battery will not clear the C1335 code from the ABS module's memory in modern vehicles.
• If the ABS light returns immediately upon driving, the root cause was not fixed or the new part is faulty.
• Basic OBD-II scanners that only read engine codes cannot clear codes from the ABS module.

Will This Fail Emissions / State Inspection?

No — by itself this code doesn't fail OBD inspection (but it can keep readiness monitors from setting, which causes a separate fail).

• California: Will NOT fail a smog check. An illuminated ABS light is not part of the emissions inspection.
• New York: Currently, an illuminated ABS light is NOT a cause for failing the NYS safety inspection, as long as the standard braking system is functional.
• Texas: Will NOT fail a safety inspection. Texas inspection rules explicitly state that an illuminated ABS lamp is not a cause for rejection.

Most Commonly Affected Vehicles

• Peugeot Partner / 207 / 308 / RCZ (2008-2018) — Extremely common fault caused by an internal break in the wiring harness where it passes over the rear axle, even if the outer conduit looks undamaged.
• Citroen Berlingo / C4 / C6 (2008-2018) — Shares platforms with Peugeot models and suffers from the identical wiring harness failure. The fault is often intermittent at first, triggered by rain or bumps.
• Honda Civic, Accord, CR-V (2005-2016) — Frequently caused by rust buildup under the sensor's mounting flange ('rust jacking'), which increases the air gap.
• Toyota Corolla, Camry, RAV4 (2007-2018) — While C1335 is a sensor fault, similar symptoms are often caused by code C1336, indicating a 'Zero Point Calibration' is needed after an alignment.
• Chevrolet Equinox, Malibu, Silverado (2010-2019) — Often logs the equivalent code C0035 or C0040. On the Equinox, the sensor is integrated into the wheel hub assembly, so a worn bearing sets this code.
• Ford Ranger, F-150, Focus (2012-2023) — On Ranger and F-150 trucks, the rear axle wiring harness is a known weak point for chafing against the axle housing, damaging ABS sensor wiring.
• Hyundai i30, Elantra, Sonata (2011-2017) — The manufacturer's definition for C1335 on these models specifies an internal hardware failure of the sensor itself, making the sensor the most likely culprit.
• Kia Optima, Sorento (2011-2015) — Similar to Hyundai, the fault often lies with the sensor. Verify the code definition with a good scanner.
• Volkswagen Golf, Passat, Jetta (2010-2018) — A faulty sensor disables the Electronic Stability Control (ESC), electronic parking brake, Auto Hold, and Start-Stop systems.
• Subaru Outback, Forester (2010-2014) — A key symptom on these models is an inoperative speedometer in addition to the ABS/Traction control lights.

Manufacturer-Specific Notes

• Peugeot / Citroen: The #1 cause is a broken wire inside the protective plastic conduit where it runs over the rear axle. Wiggling the harness while watching live data pinpoints the break.
• Honda: A very common cause is 'rust jacking'—corrosion building up under the sensor's mounting flange. Cleaning this mounting surface to bare metal is a critical diagnostic step.
• Toyota / Lexus: ABS/VSC/TRAC lights are most commonly caused by the need for a 'Zero Point Calibration' after a wheel alignment, suspension work, or battery disconnect.
• Chevrolet / GM: An accumulation of metallic debris on the magnetic encoder face of the wheel hub assembly is a frequent cause. A worn, noisy bearing also sets this code.
• Ford: On Ranger and F-150 trucks, the wiring harness routed along the rear axle is a major weak point for chafing and damage against the axle housing.
• Hyundai / Kia: Factory service information explicitly states that code C1335 indicates an internal hardware failure of the sensor itself, making a faulty sensor a high probability.

Real Owner Stories

2014 Citroen Berlingo - The "New Part Didn't Fix It" Scenario

ABS and ASR/ESP lights came on with code C1335. Owner replaced the sensor and cleared the code, but the light returned immediately.

What they tried:

1. Replaced the rear right ABS sensor.
2. Cleaned the reluctor ring and sensor mounting surface.
3. Investigated wiring and found a break in the cable under the passenger seat.
4. Replaced the sensor's plastic connector pigtail with a salvage yard part.

Outcome: The final fix was repairing the broken wire under the seat and replacing the sensor connector plug, which had damaged internal pins. The original sensor was likely fine.

Lesson: On Peugeot/Citroen models, wiring and connector failure is extremely common. If a code persists after replacing a part, the fault is almost certainly in the wiring or connector pins.

2013 Peugeot RCZ - The Misdiagnosis Story

Intermittent ABS/ESP lights with codes C1335 and C1336. The light reset on restart but always came back.

What they tried:

1. Mechanic replaced the rear ABS sensor twice in two months.
2. Mechanic visually inspected the ABS ring.

Outcome: The mechanic installed the replacement sensors incorrectly, causing the wire to rub against the suspension and short out. The root cause was improper repair procedure, not a faulty part.

Lesson: Even a new part fails if installed incorrectly. If a problem returns quickly after a repair, suspect an installation error and ensure the sensor wire is routed away from moving suspension components.

2010 Honda CR-V - The Unusual Root Cause

ABS/VSA lights on, code C1335 present. Vehicle was from a region with heavy road salt use.

What they tried:

1. Owner considered replacing the sensor.
2. Inspected the sensor mounting point first based on forum advice.

Outcome: The owner found a thick layer of rust on the knuckle underneath the sensor's mounting flange. This 'rust jacking' pushed the sensor too far away from the reluctor ring. Cleaning the rust to bare metal fixed the problem without new parts.

Lesson: On Hondas in the 'Rust Belt', always clean the sensor mounting surface with a wire brush before replacing the sensor. This simple, free step often solves the problem.

2010 Toyota - The "Not a Hardware Problem" Case

ABS/VSC lights appeared immediately after getting a wheel alignment.

What they tried:

1. The alignment shop could not clear the lights.
2. Owner took the car to a Toyota dealership.

Outcome: The dealership performed a 'Zero Point Calibration' of the steering angle and yaw rate sensors. This software procedure tells the stability control system where 'straight ahead' is. The lights cleared permanently.

Lesson: On Toyota/Lexus vehicles, if ABS/VSC lights appear after an alignment or battery replacement, the cause is a lost Zero Point Calibration, not a faulty sensor. Perform this procedure before replacing hardware.

How to Prevent This Code From Triggering

• Regularly Wash Underbody and Wheel Wells (Monthly, and after every snow/salt event) — Removes corrosive road salt and grime that attacks wiring insulation, connector seals, and the sensor mounting surface, preventing 'rust jacking'.
• Apply Dielectric Grease to Connectors (Whenever a wheel-area connector is disconnected) — Dielectric grease is non-conductive and seals out moisture and oxygen, preventing connector pins from corroding.
• Inspect and Secure Wiring Harnesses (During every tire rotation or brake service) — Securing the harness away from hazards prevents wires from chafing against moving suspension parts or breaking from stress.
• Clean Reluctor Rings and Sensor Mounting Surfaces (During every brake pad/rotor replacement) — Removing built-up metallic brake dust and rust ensures a clean signal and prevents rust buildup that increases the air gap.
• Use a Corrosion Inhibitor Spray (Once per year, before winter) — Products like Waxoyl Powershield create a waxy, protective barrier on connectors and sensor bodies that repels moisture and salt spray.

Frequently Asked Questions

Can I just replace the sensor to fix code C1335?

While a faulty sensor is a common cause, it is not the only one. On European cars, wiring fails more often than the sensor, and on Hondas, rust buildup is a frequent culprit. Always perform a thorough visual inspection of the wiring, connector, and reluctor ring before buying parts.

I replaced the sensor, but the C1335 code came back. What now?

If a new sensor didn't fix it, the problem is in the wiring harness, a damaged reluctor ring, or an incorrect air gap. You must perform continuity tests on the wiring from the sensor to the ABS module.

My ABS light came on right after a wheel alignment. Is the sensor bad?

Probably not, especially on a Toyota or Lexus. After an alignment, the steering angle sensor requires a 'Zero Point Calibration' to reset the system. Take it back to the alignment shop and request this software calibration before replacing parts.

I just replaced my rear wheel bearing and now the ABS light is on. What happened?

You almost certainly installed the new wheel bearing backward. Modern bearings have a magnetic ABS encoder built into one side, and if installed facing away from the sensor, it generates no signal. You must press the old bearing out and install a new one correctly.

Why did the ABS light come on right after hitting a pothole?

The sharp impact from a pothole severs old, corroded wires in the sensor harness. It also damages the sensor's delicate internal components or cracks a brittle reluctor ring.

Can I just clear the code to turn the light off?

You can clear the code with a scanner, but it returns as soon as the ABS module runs its self-test and detects the fault again. Clearing the code does not fix the underlying hardware problem.

What is the difference between C1335 and U0415?

C1335 is the root cause code indicating a rear right wheel sensor circuit fault. U0415 is a secondary symptom code meaning another computer received bad data from the ABS module. Fix the C1335 code first, and the U0415 code automatically resolves.

My code is intermittent. What's the most likely cause?

Intermittent faults are most often caused by a partially broken wire inside the harness or a damaged connector pin that loses contact over bumps. A wheel bearing with excessive play also occasionally creates an incorrect air gap. Pinpoint the break by wiggling the harness while watching live scanner data.

Key Takeaways

• Code C1335 flags a rear right wheel speed sensor circuit failure, instantly disabling your ABS and traction control systems.
• Always check manufacturer quirks: Peugeot/Citroen models suffer from broken wiring harnesses, Hondas experience 'rust jacking' under the sensor, and Hyundais typically need a new sensor.
• You can drive short distances, but stopping distances on loose surfaces increase by over 20% and panic braking causes wheel lock-up.
• Never replace the sensor without checking live OBD-II data first; a reading of 0 mph confirms a hard fault, while erratic readings point to rust, a dirty reluctor ring, or a failing wheel bearing.