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Code C0606

Quick reference

C0606 at a glance

Plain-language meaning
This code means that the car's computer is having trouble reading the position of the steering wheel. It's like if your video game controller couldn't tell which way you were turning.
Urgency
Moderate – While not immediately dangerous, it can affect steering performance and should be addressed promptly.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Screwdriver set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that the car's computer is having trouble reading the position of the steering wheel. It's like if your video game controller couldn't tell which way you were turning.

Explanation

The steering wheel angle sensor is responsible for determining the position of the steering wheel and sending this information to the car's computer. A 'circuit low' error indicates that the signal from the sensor is weaker than expected.

Technical description

The C0606 code is triggered when the vehicle's control module detects a voltage level from the steering wheel angle sensor that is below the expected range. This could be due to a faulty sensor, wiring issues, or a problem with the control module itself.

Symptoms

• Warning light on the dashboard

• Loss of power steering assist

• Inaccurate steering response

Common Causes

• Faulty steering wheel angle sensor

• Damaged or corroded wiring/connectors

• Faulty control module

Glossary

OBD-II: On-Board Diagnostics, a standardized system in vehicles for self-diagnosing and reporting.

Sensor: A device that detects or measures a physical property and records, indicates, or otherwise responds to it.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the wiring and connectors for damage or corrosion.

• Test the steering wheel angle sensor for proper operation.

Repair procedures

• Replace the steering wheel angle sensor if faulty.

• Repair or replace damaged wiring/connectors.

• Reprogram or replace the control module if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Screwdriver set

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Silverado

• GMC Sierra

• Cadillac Escalade

Preventive measures

• Regularly check and maintain electrical connections.

• Avoid exposure to moisture and corrosive elements.

• Schedule routine vehicle inspections.

Error code type

Sensor Issue

User experience recommendations

• Avoid driving at high speeds until the issue is resolved.

• Consult with a professional mechanic for accurate diagnosis.

Warranty information

Repairs may be covered under vehicle warranty if the vehicle is still within the warranty period.

Historical data

This code is commonly associated with vehicles that have electronic steering systems and has been more prevalent with increased use of electronic steering aids.

Urgency level

Moderate – While not immediately dangerous, it can affect steering performance and should be addressed promptly.

Testing conditions

• Vehicle ignition in the 'ON' position.

• Steering wheel in neutral position.

Component location

The steering wheel angle sensor is typically located near the steering column, behind the steering wheel.

FAQs

Q: Can I drive with a C0606 code?
A: It's not recommended to drive for long periods with this code as it can affect steering performance.

Q: How do I reset the C0606 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, the code should not return.

Optional diagnostic gear

Tools that may help diagnose C0606

FOXWELL Multi-System Scanner diagnostic tool illustration

Pro · Four-system diagnostics

FOXWELL Multi-System Scanner

A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.

Chassis and ABS faults usually need a scanner that can read brake-system data directly.

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EPAuto 1/2" Torque Wrench diagnostic tool illustration

Universal · Torque wrench

EPAuto 1/2" Torque Wrench

Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.

Useful when wheel, hub, or suspension hardware needs correct reassembly torque.

View on Amazon
MaxxHaul Vehicle Ramps diagnostic tool illustration

Universal · Drive-on ramps

MaxxHaul Vehicle Ramps

Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.

Helpful for safer access during underbody inspection work.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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