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Code C0552

Quick reference

C0552 at a glance

Plain-language meaning
This code means that the car's computer is having trouble with a sensor that helps it understand how fast the car is speeding up or slowing down in a straight line.
Urgency
Moderate – While the vehicle may still be drivable, stability and traction control systems may not function properly, increasing the risk of skidding or loss of control.
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 with a sensor that helps it understand how fast the car is speeding up or slowing down in a straight line.

Explanation

The longitudinal acceleration sensor measures the acceleration of the vehicle along the forward and backward axis. This code indicates that the sensor is not performing within its expected range.

Technical description

The C0552 code is triggered when the vehicle's control module detects a problem with the longitudinal acceleration sensor's performance or range. This sensor is crucial for systems like traction control and stability control, as it provides data on the vehicle's acceleration and deceleration. If the sensor's readings are outside the expected range or inconsistent, the control module sets this code.

Symptoms

• Traction control or stability control warning light on

• ABS warning light on

• Reduced vehicle stability

• Erratic braking or acceleration behavior

Common Causes

• Faulty longitudinal acceleration sensor

• Poor electrical connection in the sensor circuit

• Damaged wiring or connectors

• Faulty control module

Glossary

Longitudinal Acceleration: Acceleration along the length of the vehicle, either forward or backward.

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 longitudinal acceleration sensor and its wiring for damage.

• Check the electrical connections for corrosion or looseness.

• Test the sensor's output using a multimeter.

Repair procedures

• Replace the faulty longitudinal acceleration sensor.

• Repair or replace damaged wiring or connectors.

• Ensure all electrical connections are secure and free of corrosion.

• Reprogram or replace the control module if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Screwdriver set

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Silverado

• GMC Sierra

• Cadillac Escalade

Preventive measures

• Regularly inspect and maintain vehicle sensors.

• Ensure all electrical connections are clean and secure.

• Have the vehicle's control systems checked periodically.

Error code type

Sensor Issue

User experience recommendations

• Avoid driving aggressively until the issue is resolved.

• Consult a professional mechanic for a thorough diagnosis.

Warranty information

Check with the vehicle manufacturer as sensors may be covered under the powertrain or emissions warranty.

Historical data

This code has been associated with stability control issues in vehicles, particularly affecting GM models from the early 2000s.

Urgency level

Moderate – While the vehicle may still be drivable, stability and traction control systems may not function properly, increasing the risk of skidding or loss of control.

Testing conditions

• Vehicle should be on a flat surface.

• Ensure the vehicle is not in motion during sensor testing.

Component location

The longitudinal acceleration sensor is typically located near the vehicle's center of gravity, often under the center console or beneath the seats.

FAQs

Q: Can I drive with a C0552 code?
A: While you can drive, it's not recommended as stability control systems may be compromised, increasing the risk of accidents.

Q: How can I prevent C0552 from occurring?
A: Regular maintenance and inspection of the vehicle's sensors and electrical connections can help prevent this code.

Optional diagnostic gear

Tools that may help diagnose C0552

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.

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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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