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Code C1155

Symptoms

• Warning light on the dashboard

• Poor handling or stability

• Unusual tire wear

Common Causes

• Faulty rear wheel speed sensor

• Malfunctioning stability control module

• Damaged or worn-out suspension components

Glossary

Slip Angle: The angle between the direction a wheel is pointing and the direction it is actually moving.

Stability Control: A system that helps maintain vehicle control during extreme steering maneuvers.

Related Codes

• C1156

• C1157

Laymans terms

This code means that the car's computer thinks there's a problem with how the back wheels are turning or sliding when you drive. It's like the car is having trouble keeping the back wheels steady.

Explanation

The code C1155 indicates an issue with the vehicle's system that controls the rear axle's slip angle, which is important for stability and handling.

Technical description

The C1155 code is triggered when the vehicle's stability control system detects a problem with the rear axle's slip angle control. This system helps ensure the vehicle remains stable during turns and slippery conditions by adjusting the angle of the rear wheels. If the system is not performing as expected, this code is set.

Diagnosis steps

• Check for any stored codes and freeze frame data.

• Inspect the rear wheel speed sensors and connections.

• Test the stability control module for proper operation.

Repair procedures

• Replace faulty rear wheel speed sensor.

• Repair or replace damaged suspension components.

• Reprogram or replace the stability control module if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $600

Difficulty level

Moderate

Commonly affected vehicles

• Ford Explorer

• Toyota 4Runner

• Chevrolet Tahoe

Preventive measures

• Regular maintenance of suspension components

• Routine checks of the stability control system

• Ensure proper tire inflation and alignment

Error code type

Stability Control System Issue

User experience recommendations

• Drive cautiously until the issue is resolved.

• Avoid sharp turns and sudden stops.

• Consult a professional mechanic for diagnosis and repair.

Warranty information

Check vehicle warranty for coverage on stability control system components.

Historical data

This code has been associated with vehicles that have advanced stability control systems, particularly in models with a focus on off-road capabilities.

Urgency level

Moderate – This issue can affect vehicle handling and should be addressed to ensure safety.

Legal and safety notice

Ignoring this code may lead to reduced vehicle stability and increased risk of accidents.

Testing conditions

• Vehicle driven on a slippery surface

• Sharp turns or sudden maneuvers

Component location

The rear wheel speed sensors are typically located at the wheel hubs, while the stability control module is often found under the hood or beneath the dashboard.

FAQs

Q: Can I drive with code C1155?
A: It's possible to drive, but be cautious as the vehicle's stability may be compromised.

Q: How do I reset the C1155 code?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.

Last updated: Jun 8, 2026 • Source: internal database
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