AutoCodes – Infiniti – C1133 Infiniti

C1133 Infiniti Code - Engine Signal 4

Quick Answer

ABS Actuator and Electric Unit (Control Unit) and Engine Control Module (ECM) exchange the engine signal with Control Area Network (CAN) communication line. Common causes include Faulty Engine Control Module (ECM), Faulty ABS Actuator and Electric Unit (Control Unit), Control Area Network (CAN) communication line. 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: C1133 Infiniti indicates Engine Signal 4.
Common causes: Common causes include Faulty Engine Control Module (ECM), Faulty ABS Actuator and Electric Unit (Control Unit), Control Area Network (CAN) communication line.
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 3,734

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 Aug 17, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C1133 Infiniti Description

ABS Actuator and Electric Unit (Control Unit) and Engine Control Module (ECM) exchange the engine signal with Control Area Network (CAN) communication line. Major engine components are malfunctioning.

OBDII Code C1133 Infiniti - Engine Signal 4 - AutoCodes.com — C1133 Infiniti Code - Engine Signal 4

What does this mean?

What are the Possible Causes of the DTC C1133 Infiniti?

Faulty Engine Control Module (ECM)
Faulty ABS Actuator and Electric Unit (Control Unit)
Control Area Network (CAN) communication line
Blown Engine Control Module (ECM) fuse

How to Fix the DTC C1133 Infiniti?

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 does this mean?

Code Tech Notes

The code means that the Anti-Lock Brake System (ABS) control unit has detected that there is a problem with the Engine Control Module (ECM).

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1133 Infiniti 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 C1133 Infiniti code?

Need more information on how to fix the C1133 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 C1133 Infiniti Code

1. What does OBDII code C1133 for Infiniti indicate?

The OBDII code C1133 for Infiniti, also known as Engine Signal 4, typically points to an issue with the ABS pressure sensor circuit.

2. What are the common symptoms of OBDII code C1133 in an Infiniti vehicle?

Common symptoms of OBDII code C1133 in an Infiniti may include the ABS warning light illuminating on the dashboard, possible loss of ABS functionality, and irregular braking performance.

3. What are the potential causes of OBDII code C1133 in an Infiniti?

Potential causes of OBDII code C1133 in an Infiniti include a faulty ABS pressure sensor, damaged wiring or connectors in the ABS system, or issues with the ABS control module.

4. How can I diagnose OBDII code C1133 in my Infiniti?

Diagnosing OBDII code C1133 in your Infiniti typically involves using a diagnostic scan tool to retrieve the trouble codes, inspecting the ABS pressure sensor and related components, and testing the wiring and connectors for any faults.

5. Can I continue driving my Infiniti with OBDII code C1133 present?

It is not recommended to continue driving your Infiniti with OBDII code C1133 present, as it may compromise the functionality of the ABS system and affect braking performance.

6. How can I repair OBDII code C1133 in my Infiniti?

Repairing OBDII code C1133 in your Infiniti may involve replacing the faulty ABS pressure sensor, repairing or replacing damaged wiring or connectors, or addressing any issues with the ABS control module.

7. Are there any DIY tips for troubleshooting OBDII code C1133 in an Infiniti?

DIY tips for troubleshooting OBDII code C1133 in an Infiniti include checking the ABS fuse, inspecting the ABS sensors for debris or damage, and ensuring all connectors in the ABS system are securely connected.

8. Will resetting the OBDII code C1133 in my Infiniti make the issue go away?

Resetting the OBDII code C1133 in your Infiniti may temporarily clear the code, but it will not fix the underlying issue causing the code to appear. It is crucial to diagnose and repair the root cause of the problem.

9. How much does it cost to fix OBDII code C1133 in an Infiniti?

The cost to fix OBDII code C1133 in an Infiniti can vary depending on the specific cause of the issue, the parts needed for repair, and whether you choose to do the repair yourself or take it to a professional mechanic.

10. Can OBDII code C1133 in an Infiniti cause any other problems if left untreated?

If left untreated, OBDII code C1133 in an Infiniti can potentially lead to further damage to the ABS system, compromised braking performance, and safety concerns while driving. It is essential to address the issue promptly.