OBD-II Code C0605: Steering Wheel Angle Sensor Circuit Malfunction

What Does C0605 Mean?

Code C0605 indicates the vehicle's primary chassis computer (ABS or ESC module) detects a complete loss of signal or an open electrical circuit from the Steering Wheel Angle Sensor (SWAS). This sensor tells the car the precise direction and rate of steering. Without this signal, the computer deactivates stability control, traction control, and variable power steering to prevent unpredictable handling.

Technical definition: The SAE/OBD-II definition for C0605 is "Steering Wheel Angle Sensor Circuit/Open". A control module detects a total loss of electrical connection to the steering wheel angle sensor. The circuit is physically broken, unpowered, or the sensor has failed internally and stopped transmitting data.

Can I Drive With C0605?

Yes, But With Caution. You can drive the vehicle, but only for short distances to a repair shop. This code disables critical safety systems like Electronic Stability Control (ESC) and ABS. Without ESC, the risk of losing vehicle control, spinning out, or rolling over during a sudden maneuver increases significantly.

Common Causes

• Failed Steering Wheel Angle Sensor (SWAS) (Very Common) — The sensor is an electronic component that fails internally over time. Analog potentiometers wear out physically, while digital Hall-effect sensors suffer from internal shorts, causing a complete loss of signal.
• Damaged Clock Spring (Very Common) — The clock spring is a coiled ribbon cable maintaining electrical connections inside the steering wheel. A broken clock spring severs the connection between the control module and the steering angle sensor, directly causing an open circuit.
• Damaged or Corroded Wiring/Connectors (Common) — Wires in the steering column chafe, break, or corrode from constant movement. Connector pins to the sensor or clock spring loosen over time, creating an open circuit.
• Poor Power or Ground Connection (Less Common) — The sensor requires a stable 5-volt or 12-volt power source and a solid ground. A blown fuse, corroded ground wire, or high resistance in the power supply circuit prevents the sensor from operating.
• Software or Calibration Glitch (Less Common) — A severe voltage fluctuation from a dead battery or jump-start corrupts the sensor's calibration memory. The module interprets this uncalibrated state as a circuit fault.
• Incorrect Wheel Alignment or Steering Repair (Rare) — Replacing steering components without resetting the SWAS confuses the system. The computer struggles to reconcile conflicting data, triggering circuit or performance codes.
• Faulty Control Module (ABS/ESC/BCM) (Rare) — An internal failure in the control module's circuitry or processor prevents it from reading a perfectly good sensor.
• CAN Bus Communication Fault (Rare) — A break or short in the CAN bus network wiring prevents the steering angle signal from reaching the necessary modules.

Symptoms

• Traction Control or Stability Control (ESC) Light is On — These systems disable immediately without a valid steering angle signal, illuminating a warning light on the dash.
• 'Service StabiliTrak' or Similar Warning Message — General Motors vehicles display a specific 'Service StabiliTrak' or 'ESC Off' message on the driver information center.
• ABS Light is On — The Anti-lock Braking System relies on steering angle data during complex braking events, causing this light to accompany the ESC light.
• Loss or Heaviness of Power Steering Assist — Vehicles with electric power steering (EPS) revert to a heavy, default non-variable mode when the steering angle signal is lost.
• Airbag (SRS) Light is On — If the clock spring breaks, it severs connections for both the steering angle sensor and the airbag, triggering both warning lights simultaneously.
• Advanced Driver-Assistance Systems (ADAS) Disabled — Lane Keep Assist, Adaptive Cruise Control, and Automated Parking disable completely, as they fundamentally rely on steering wheel position data.

Diagnostic Flowchart

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

Common Fixes & Costs

• Replacing the Steering Angle Sensor — Parts: $150-$450, Labor: $150-$350, ~2.0 hr book time (Professional)
  : OEM 19418403 (Alt: Standard Motor Products SWS95)
  : OEM 89245-06050 (Alt: Duralast SU17323)
• Replacing the Clock Spring — Parts: $100-$350, Labor: $200-$400, ~2.5 hr book time (Professional)
  : OEM 25966966 (Alt: Dorman 525-039)
  : OEM 84307-06090 (Alt: Dorman 525-402)
• Repairing Damaged Wiring or Connectors — Parts: $10-$50, Labor: $150-$300, ~1.5 hr book time (Intermediate)
• Calibrating the Steering Angle Sensor — Parts: $0, Labor: $100-$200, ~0.8 hr book time (Intermediate)
• Replacing a Control Module (ABS/BCM/PCM) — Parts: $600-$1200, Labor: $200-$400, ~2.5 hr book time (Professional)

Used vs. New Parts: Buying Guide

When a used part is worth it: Buying a used steering angle sensor or clock spring is highly discouraged. These are critical safety components connected to the airbag system. The risk of installing a damaged part from a deployed-airbag vehicle is too high.

Donor-vehicle mileage cap: roughly under 40000 miles for the part to have meaningful remaining life.

Donor quality checklist:

• Verify the donor vehicle did not have an airbag deployment.
• Ensure the clock spring was locked in the neutral position before removal to prevent internal ribbon damage.
• Match the part number exactly, including revisions.
• Avoid parts with signs of water damage or corrosion.

Decision logic:

• If The part is a clock spring or directly wired to the airbag. → Buy new OEM or a reputable aftermarket brand. The safety risk is not worth the savings.
• If The part is a standalone sensor and the vehicle is high-mileage with a tight budget. → A used part from a low-mileage, verified non-accident donor is a possibility, but carries significant risk.
• If The sensor is integrated into a larger assembly (like a steering rack). → Favor a new or professionally remanufactured assembly with a warranty over a salvage yard pull.

Warranty tradeoff: Salvage yard parts offer 30-day warranties. New aftermarket parts carry 1-year to lifetime warranties. New OEM parts carry a 12-month/12,000-mile warranty.

Worst-case if a used part fails: $300-$600 if a used part fails, requiring repeat labor costs and a second part purchase.

What Happens If You Wait — Timeline

1. Immediate: Code sets, ESC/ABS/Traction Control warning lights illuminate. Safety systems disable instantly. (MPG impact: 0%% · Added cost: $0)
2. 0-1 month: Driving without stability control significantly increases risk in emergency maneuvers. ADAS and variable power steering remain inoperative. (MPG impact: 0%% · Added cost: High safety risk, no direct financial cost.)
3. 1-6 months: If the root cause is a severe alignment issue, uneven tire wear accelerates. The driver becomes dangerously complacent about disabled safety systems. (MPG impact: 0-2%% · Added cost: $300-$1000 for a new set of tires.)
4. 6+ months: An accident preventable by ESC is the worst-case outcome. Continued driving with a known safety defect carries severe liability implications. (MPG impact: 0-2%% · Added cost: Potentially infinite (cost of an accident).)

Cost of Not Fixing It

• Immediate: Safety systems (ESC, ABS, Traction Control) disable. Increased risk of losing control, skidding, or hydroplaning in emergency maneuvers. (Added cost: Potentially infinite (cost of an accident).)
• 0-3 Months: Dependent systems like Adaptive Cruise Control and Lane Keep Assist cease functioning. Power steering feels heavy or unpredictable. (Added cost: High safety risk, but no direct financial cost.)
• 3+ Months: If the fault stems from a severe alignment issue, uneven tire wear accelerates rapidly. (Added cost: $300-$1000 for a new set of tires.)

Diagnosis Steps

1. Scan for All Trouble Codes
   Use a professional-grade OBD-II scanner to read Chassis (C) and Network (U) codes. Confirm C0605 is present. Codes like U0126 (Lost Communication) indicate a network or power issue rather than a failed sensor.
   Tools: Advanced OBD-II Scanner (Beginner)
2. View Live Sensor Data (PID)
   Access the live data stream for the Steering Angle Sensor PID. The reading must be close to 0° when wheels are straight. Turn the wheel lock-to-lock. If the value is stuck at 0°, erratic, or blank, the sensor or circuit is faulty.
   Tools: Advanced OBD-II Scanner (Intermediate)
3. Check Fuses
   Locate all fuses related to the ABS, ESC, and instrument cluster systems in the owner's manual. Test each fuse with a multimeter to ensure none are blown before tearing apart the steering column.
   Tools: Fuse puller, multimeter (Beginner)
4. Inspect Wiring and Connectors
   Perform a visual inspection of the wiring harness around the steering column. Look for pinched or frayed wires. Disconnect the sensor and clock spring connectors to check for bent, corroded, or backed-out pins.
   Tools: Flashlight, inspection mirror (Intermediate)
5. [PRO TIP] Test Sensor Power and Ground with a Multimeter
   Disconnect the SWAS connector. Using a wiring diagram, identify the power and ground pins. With the key on, verify voltage at the power pin (5V or 12V). Check for continuity to ground on the ground pin (resistance under 1 ohm). Missing power or ground means the issue is wiring, not the sensor.
   Tools: Multimeter, vehicle-specific wiring diagram (Advanced)
6. [PRO TIP] Test the Analog Signal Wire
   If power and ground are good, back-probe the signal wire with the sensor connected. For analog sensors, voltage sweeps smoothly (e.g., 0.5V to 4.5V) as you turn the wheel. No change or erratic jumps confirm a bad sensor.
   Tools: Multimeter, back-probe kit (Advanced)
7. [PRO TIP] Test the Digital Signal with an Oscilloscope
   For digital Hall-effect sensors, back-probe the signal wire with an oscilloscope. You must see a clean square wave pattern that changes frequency as the wheel turns. A flat line or distorted waveform confirms a sensor fault.
   Tools: Oscilloscope, back-probe kit (Professional)
8. [PRO TIP] Check CAN Bus Resistance
   If U-codes are present, disconnect the battery. Measure resistance between CAN-High (Pin 6) and CAN-Low (Pin 14) at the OBD-II port. A healthy network reads 60 ohms. 120 ohms indicates a broken wire; 0-2 ohms indicates a short.
   Tools: Multimeter (Professional)

When This Code Triggers (Freeze-Frame Conditions)

• Vehicle Speed: 0-70 mph (The fault is detected during the module's self-test at key-on or immediately upon steering movement.)
• Engine State: Key-On or Running (The control module checks the sensor circuit integrity as soon as it powers up.)
• Steering Wheel Angle: No Data / 0° (The module expects a varying signal but receives none, confirming an open circuit.)
• Battery Voltage: 11.5-14.5V (Normal operating voltage. Low voltage during cranking erroneously sets this code on GM vehicles.)

Related Codes

• C0051 — Indicates a 'Steering Wheel Position Sensor' performance issue. While C0605 means the signal is completely gone, C0051 means the signal is present but illogical. Seeing both confirms a faulty sensor or severe alignment issue.
• U0126 — Means 'Lost Communication With Steering Angle Sensor Module'. If you have C0605 and U0126, the problem is a total loss of power/ground to the sensor module or a broken CAN bus wire, not the sensor itself.
• P0605 — Indicates an 'Internal Control Module ROM Error'. While C0605 points to the sensor circuit, P0605 points to the main computer. On Nissans and Kias, software updates often fix P0605 codes.
• C2205 — A specific code for 'Steering Angle Sensor Internal Error'. It means the sensor failed its internal self-test. C2205 guarantees the steering angle sensor is defective and requires replacement.

Climate & Environmental Factors

• Extreme Temperature Cycles: Repeated hot/cold cycles make wiring insulation brittle, especially in the flexible harness within the steering column. This accelerates wire chafing and breakage.
• High Humidity / Water Intrusion: Water leaking from a bad windshield seal drips into connectors for the SWAS, causing rapid corrosion and an open circuit. Ford F-150s suffer from moisture intrusion directly into the EPAS steering rack electronics.

How to Talk to a Mechanic About This Code

Say this: "I have a C0605 code and my ESC light is on. Before replacing any parts, please verify the steering angle sensor is receiving correct power and ground, and check the live data stream to confirm there's no signal. I want to rule out a simple wiring issue before condemning the sensor or clock spring."

This directs the shop to perform crucial electrical tests first, preventing them from immediately quoting an expensive part replacement without proper validation. It establishes you as an informed customer.

Avoid saying:

• 'My traction control light is on, can you fix it?'
• 'I think I need a new steering sensor.'
• 'Just do whatever it takes to get the light off.'

Questions to ask before authorizing the repair:

• What was the steering angle reading on the scan tool's live data? Was it frozen or showing 'no data'?
• Did you test the power and ground pins at the sensor's connector, and what were the voltage and resistance readings?
• Does your repair estimate include the cost of the mandatory steering angle sensor calibration after the part is replaced?
• If the clock spring needs replacement, are you using an OEM part or an aftermarket one, and what is the warranty?

Where to Take It: Dealer vs Independent vs Chain

• Dealer: A safe, but expensive, option. Recommended for complex integrated steering rack issues or if you suspect a software calibration problem requiring dealer-only tools.
  Best for: Vehicles under warranty., Complex, integrated repairs like Ford EPAS steering racks., Vehicles requiring specific software calibrations (Toyota, BMW, VW/Audi).
  Downsides: Highest labor rates and parts costs., Defaults to replacing large assemblies instead of diagnosing smaller wiring failures. (Typical cost: +50% vs. baseline)
• Independent Shop: Best fit for most situations. A reputable independent shop with ASE-certified technicians handles a C0605 repair effectively. Ask specifically if they can perform a steering angle sensor calibration.
  Best for: Out-of-warranty vehicles where cost is a factor., Diagnosing common failures like a bad sensor, clock spring, or wiring issue.
  Downsides: Must verify they possess an advanced scan tool capable of SAS calibration., May lack access to the latest manufacturer-specific software updates. (Typical cost: +0% vs. baseline)
• Chain Shop: AVOID. This repair requires diagnostic expertise and specific calibration equipment beyond the scope of a chain repair shop.
  Best for: Simple maintenance like oil changes or tires.
  Downsides: Technicians lack advanced diagnostic training for complex electrical codes., Unlikely to have the specific scan tools required for SAS calibration., High risk of misdiagnosis and unnecessary parts replacement. (Typical cost: -10% vs. baseline)

When to Walk Away From the Repair

If the estimated repair cost for the C0605 fault exceeds 40-50% of your car's current private-party value, consider selling or trading it in.

• Car worth $15000, fix is $750: Fix it. This is a standard repair cost and well below the threshold.
• Car worth $8000, fix is $2200: Borderline. This repair (likely a Ford EPAS rack) is a significant percentage of the car's value. Get a second opinion.
• Car worth $3500, fix is $1800: Walk away. The repair cost is over 50% of the car's value. It is not economically sensible to proceed.

What Scan Tool You Need for This Code

Minimum: A scanner that reads/clears Chassis (ABS/SRS) codes, displays live data for the steering angle sensor PID, and performs the Steering Angle Sensor (SAS) Calibration function.

A basic $20 code reader only sees engine (P-codes) and cannot access the ABS module. It cannot perform the mandatory SAS calibration, meaning warning lights stay on even with a new part.

Budget: BlueDriver Pro (~$100) — Reads and clears ABS/SRS codes and provides live data graphing. Verify in the app if it supports the SAS calibration function for your specific vehicle.

Mid-range: Foxwell NT630 Plus / Autel MaxiLink ML629 (~$150) — Excellent DIY tools. They read/clear ABS codes, show live data, and include the SAS Calibration function for a wide range of vehicles, making them a complete solution.

Professional: Autel MaxiCOM MK808S / Foxwell GT60 (~$400-700) — Offers full bidirectional control, all system diagnostics, and comprehensive service functions including SAS calibration for nearly all makes and models.

Rent vs buy: Buy. Auto parts stores rent basic OBD-II readers for free, but these CANNOT diagnose a C0605 code or perform the required calibration. You must purchase a capable scanner or visit a shop.

How to Clear the Code After You Fix It

1. Reconnect the battery if disconnected for repair.
2. Use an advanced OBD-II scan tool to clear the Chassis (C) fault codes.
3. Perform the Steering Angle Sensor (SAS) recalibration procedure with the scan tool. This is mandatory.
4. Perform a complete drive cycle to ensure all readiness monitors are set.

Drive cycle (~30 minutes): After clearing codes, let the vehicle cool. Start the engine and idle for 3 minutes. Drive in mixed city/highway conditions, cruising between 45-60 mph for 10 minutes. Perform several normal stops and accelerations.

Readiness monitors affected: Catalyst Monitor, Evaporative System Monitor, O2 Sensor Monitor

Before emissions retest: drive at least 100 miles to fully set monitors.

Watch out for:

• Forgetting to perform the mandatory steering angle sensor calibration; the light returns immediately.
• Using a basic $20 code reader that cannot clear Chassis (C) codes or perform calibrations.
• Taking the vehicle for an emissions test before readiness monitors set, resulting in an automatic failure.

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: An illuminated ABS/ESC light does not cause an OBD-II emissions failure. However, clearing the C0605 code resets emissions readiness monitors, causing an automatic 'Not Ready' failure.
• New York: NYS inspection includes a safety check. An illuminated Air Bag warning lamp is an advisory, but if the Check Engine Light is on or OBD-II monitors are unset, the vehicle fails the emissions portion.
• Texas: Per Texas DPS rules, an illuminated ABS lamp is not a cause for safety rejection. However, in emissions-testing counties, incomplete readiness monitors result in a failure.

Most Commonly Affected Vehicles

• General Motors (Chevrolet, GMC) Silverado, Sierra, Tahoe, Suburban (2007-2014) — Triggers a 'Service StabiliTrak' message. The OEM sensor (P/N: 19418403) frequently fails internally. A steering angle sensor replacement costs between $550 and $900.
• Ford F-150, Explorer (2009-2014) — The steering angle sensor is integrated into the EPAS (Electric Power Assisted Steering) rack. Failure requires replacing the entire $1,500+ steering rack assembly. A 2014 recall (14S09) addressed improperly installed sensor magnets.
• Nissan Titan, Armada, Frontier (2009-2023) — Nissan has a known issue where a misadjusted cruise control brake switch triggers related ECM errors. Always check TSBs before condemning an expensive module.
• Subaru Outback, Forester, Impreza (2009-2014) — The SWAS is a separate component mounted to the clock spring (roll connector). Replacement requires removing the steering wheel and airbag, followed by mandatory calibration.
• Toyota Camry, Highlander, RAV4 (2007-2017) — Toyota systems require a strict 'zero point calibration' procedure. After any alignment or sensor replacement, this calibration must be performed with Toyota Techstream for the VSC system to function.
• BMW 3-Series (E90), 5-Series (E60), X5 (E70) (2005-2013) — BMW models immediately disable the DSC (Dynamic Stability Control) system upon detecting a C0605. The sensor is part of the steering column switch cluster and requires precise software calibration.
• Hyundai/Kia Elantra, Sonata, Optima, Soul (2011-2021) — The sensor is integrated into the steering column, making replacement labor-intensive. Software updates for the ECM resolve related codes on certain 2020-2021 models.
• Volkswagen/Audi Jetta, Golf, Passat, A4 (2006-2015) — A failed clock spring (part of the steering column electronic systems module) is the primary cause for this code on VW/Audi platforms, disabling the ESP (Electronic Stability Program).

Manufacturer-Specific Notes

• General Motors: The 'Service StabiliTrak' message is the hallmark symptom. Always check battery voltage first; low voltage during cranking sets this code. A manual reset (turning the wheel lock-to-lock) clears temporary glitches.
• Ford: On F-150s and Explorers with EPAS, the sensor is non-serviceable. A C0605 requires a $1,500+ steering rack replacement. Always inspect the external wiring harness to the rack for damage before replacing the rack.
• Toyota: Toyota's VSC system requires a 'zero point calibration'. If you replace the sensor, perform an alignment, or disconnect the battery, this calibration is mandatory. The VSC and ABS lights remain on until completed.
• BMW: A C0605 fault immediately disables the DSC system. The sensor fails due to wear on the internal optical disc. Calibration is a highly precise procedure requiring BMW-specific diagnostic software.

Real Owner Stories

2011 GMC Sierra with 'Service StabiliTrak'

The 'Service StabiliTrak' message appeared intermittently. The owner restarted the truck, and the light disappeared temporarily before returning.

What they tried:

1. Owner suspected a sensor issue due to the intermittent nature.
2. Took the vehicle to a local mechanic for a professional diagnosis.

Outcome: The mechanic diagnosed an internally failing steering angle sensor. After replacing the sensor and calibrating it, the codes cleared permanently.

Lesson: Intermittent 'Service StabiliTrak' messages on GM trucks are classic signs of a failing steering angle sensor. Temporary resets indicate a pending hard failure requiring replacement.

2011 Ford F-150 with sudden heavy steering

While driving in a parking lot, the power steering failed completely, making the wheel extremely difficult to turn.

What they tried:

1. Took the truck to a dealership for diagnosis.

Outcome: The dealership diagnosed a complete failure of the EPAS rack, which contains the integrated steering angle sensor. The repair quote was $1,600.

Lesson: On Ford F-150s, C0605 points to a failure inside the entire EPAS rack. This is a $1,500+ repair. Always check for manufacturer recalls or customer assistance programs before paying out of pocket.

2010 Chevy Silverado with warning lights after suspension repair

After replacing the pitman arm, the 'Service StabiliTrak' light illuminated and remained on.

What they tried:

1. The owner suspected the issue was related to the recent repairs.

Outcome: The steering angle sensor's stored 'center' position no longer matched the actual straight-ahead direction. An alignment and subsequent sensor recalibration fixed the issue.

Lesson: If C0605 appears immediately after suspension work, the shop skipped the mandatory steering angle sensor recalibration. The sensor must be electronically re-centered.

How to Prevent This Code From Triggering

• Perform wheel alignments only at shops equipped for SAS calibration (As needed (after new tires, suspension work)) — Improper alignment procedures cause SAS issues. Qualified shops know recalibrating the sensor is a mandatory final step to prevent system errors.
• Keep battery terminals clean and tight (Every oil change) — Low voltage during engine cranking corrupts the sensor's memory. A stable electrical system prevents false C0605 codes.
• Address cabin water leaks immediately (After heavy rain or car wash) — Water intrusion from a bad windshield seal drips onto the steering column, corroding clock spring and sensor connectors.
• Avoid turning the steering wheel when the vehicle is stationary (Daily habit) — Dry steering puts maximum stress on the clock spring's internal ribbon cable, accelerating fatigue and wire breakage.

Frequently Asked Questions

Can I fix a C0605 code myself?

A skilled DIYer can diagnose wiring issues with a multimeter, but replacing the sensor requires removing the airbag and steering wheel. Post-repair calibration is mandatory and requires a $150+ bidirectional scan tool. Unless you have these tools and airbag experience, leave this to a professional.

Will a wheel alignment fix a C0605 code?

No, C0605 is an electrical open-circuit fault, not a mechanical suspension issue. However, if you replace steering components to fix the root cause, you must get an alignment afterward. The shop must perform a steering angle sensor recalibration as the final step of that alignment.

Why did the light come on after I replaced my battery?

Voltage spikes from a dead battery or jump-start often erase the sensor's calibration memory. Try a manual reset by turning the steering wheel fully left, fully right, and then back to center. If the warning lights remain, a shop must recalibrate it using a scan tool.

Is the steering angle sensor the same as a clock spring?

No, but they are mounted together in the steering column. The clock spring is a coiled ribbon cable maintaining electrical connections to the steering wheel, while the angle sensor measures rotation. A broken clock spring frequently causes a C0605 by severing the sensor's wiring.

What are the most common misdiagnosis mistakes for C0605?

The biggest mistake is replacing the $300 sensor without testing its power and ground circuits first, as a blown fuse mimics a failed sensor. Another common error is skipping the mandatory post-repair scan tool calibration. Without this calibration, the dashboard warning lights will permanently stay on.

My mechanic replaced the sensor, but the light is still on. What now?

This almost always means the mechanic skipped the mandatory 'zero-point calibration' step. The new sensor must be electronically synced to the vehicle's computer using a bidirectional scan tool. If calibration was completed, suspect a missed wiring short or a defective replacement part.

How much does it cost to fix code C0605?

A simple wiring repair or scan tool recalibration costs $150 to $300. Replacing a standalone steering angle sensor or clock spring typically runs $400 to $800 including parts and labor. If the sensor is integrated into an electric steering rack (common on Fords), expect a $1,500 to $2,500 bill.

What does the 'Service StabiliTrak' light on my Chevy mean?

This message indicates a fault disabling GM's stability control system. A faulty steering angle sensor (C0605) is a primary culprit, though bad wheel speed sensors or low battery voltage also trigger it. You must pull the specific chassis (C) codes with a scanner to pinpoint the exact failure.

Key Takeaways

• Code C0605 indicates a complete open circuit in the steering angle sensor, immediately disabling ESC, traction control, and ABS.
• Over 80% of C0605 codes stem from three physical failures: a broken clock spring, frayed steering column wiring, or an internally shorted steering angle sensor.
• Do not drive at highway speeds with an active C0605; the lack of electronic stability control increases rollover and skid risks during sudden maneuvers.
• Always verify the 5V or 12V reference power and ground at the sensor connector using a multimeter before spending $300+ on a replacement part.
• Every C0605 repair requires a mandatory 'zero-point calibration' using an advanced bidirectional scan tool to clear the dashboard warning lights.