AutoCodes – Generic – C1AC2

C1AC2 Code - Slave Module Horizontal Axis Misalignment

Quick Answer

This Diagnostic Trouble Code (DTC) is stored when the angle of the Blind Spot Monitor Sensor Right (RH) deviates more than the allowable range from the horizontal axis. Common causes include Faulty Blind Spot Monitor Sensor Right (RH). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: C1AC2 indicates Slave Module Horizontal Axis Misalignment.
Common causes: Common causes include Faulty Blind Spot Monitor Sensor Right (RH).
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 762

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 13, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1AC2 Description

This Diagnostic Trouble Code (DTC) is stored when the angle of the Blind Spot Monitor Sensor Right (RH) deviates more than the allowable range from the horizontal axis. If a drum tester such as a speedometer tester, brake/speedometer combination tester or chassis dynamometer is used with the blind spot monitor system on, the blind spot monitor system may store this DTC by mistake.

OBDII Code C1AC2 - Slave Module Horizontal Axis Misalignment - AutoCodes.com — C1AC2 Code - Slave Module Horizontal Axis Misalignment

What does this mean?

What are the Possible Causes of the DTC C1AC2?

Faulty Blind Spot Monitor Sensor Right (RH)

How to Fix the DTC C1AC2?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1AC2 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C1AC2 code?

Need more information on how to fix the C1AC2 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1AC2 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1AC2 Lexus — Slave Module Horizontal Axis Misalignment
C1AC2 Toyota — Slave Module Horizontal Axis Misalignment

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1AC2 Code

1. What are common symptoms of OBDII code C1AC2, Slave Module Horizontal Axis Misalignment?

- Common symptoms include steering wheel off-center, steering wheel vibration, and potential loss of power steering assist.

2. What can cause the OBDII code C1AC2 to trigger Slave Module Horizontal Axis Misalignment?

- The code can be triggered by a misaligned or improperly installed steering angle sensor or a faulty electronic steering control module.

3. How can I diagnose the OBDII code C1AC2 for Slave Module Horizontal Axis Misalignment?

- Diagnose by checking the alignment of the steering angle sensor, inspecting the wiring harness for damage, and performing a system calibration using a diagnostic scan tool.

4. Can driving with the OBDII code C1AC2 present cause further damage?

- Driving with this code present can potentially lead to erratic steering behavior and compromise vehicle safety, so it is advisable to address the issue promptly.

5. What is the typical repair process for resolving the OBDII code C1AC2, Slave Module Horizontal Axis Misalignment?

- The repair process usually involves realigning or replacing the steering angle sensor, ensuring proper installation, and recalibrating the electronic steering control module.

6. Are there any DIY tips for addressing the OBDII code C1AC2, Slave Module Horizontal Axis Misalignment?

- DIY tips include carefully inspecting the steering angle sensor and its mounting, checking for loose connections, and following manufacturer repair procedures.

7. Can weather or road conditions affect the triggering of OBDII code C1AC2, Slave Module Horizontal Axis Misalignment?

- Extreme weather conditions or rough road surfaces can potentially impact the alignment of the steering angle sensor and contribute to triggering this fault code.

8. How long does it typically take to repair OBDII code C1AC2, Slave Module Horizontal Axis Misalignment?

- The repair time can vary depending on the extent of the misalignment and any additional issues found during diagnosis but usually takes a few hours to complete.

9. Is it safe to continue driving my vehicle with the OBDII code C1AC2, Slave Module Horizontal Axis Misalignment?

- It is not recommended to continue driving with this code present as it can affect the steering system's performance and compromise vehicle safety.

10. Can resetting the OBDII code C1AC2, Slave Module Horizontal Axis Misalignment clear the issue permanently?

- Resetting the code may temporarily clear the issue, but if the underlying cause, such as a misaligned sensor, is not addressed, the code is likely to reappear.