AutoCodes – Infiniti – C1168 Infiniti

C1168 Infiniti Code - Engine Speed Signal

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Engine Speed Signal. Common causes include Faulty Crankshaft Position Sensor, Crankshaft Position Sensor harness is open or shorted, Crankshaft Position Sensor circuit poor electrical connection. 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: C1168 Infiniti indicates Engine Speed Signal.
Common causes: Common causes include Faulty Crankshaft Position Sensor, Crankshaft Position Sensor harness is open or shorted, Crankshaft Position Sensor circuit poor electrical connection.
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 3,828

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 19, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1168 Infiniti Description

The Anti-Lock Brake System (ABS) Module monitors the Engine Speed Signal. The ABS Module sets the OBDII code when the Engine Speed Signal is not to factory specifications.

OBDII Code C1168 Infiniti - Engine Speed Signal - AutoCodes.com — C1168 Infiniti Code - Engine Speed Signal

What does this mean?

What are the Possible Causes of the DTC C1168 Infiniti?

Faulty Crankshaft Position Sensor
Crankshaft Position Sensor harness is open or shorted
Crankshaft Position Sensor circuit poor electrical connection
Check Engine Control Module (ECM) for codes

How to Fix the DTC C1168 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1168 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 C1168 Infiniti code?

Need more information on how to fix the C1168 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1168 Infiniti code diagnosed by a professional: Find a repair shop in your area

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 C1168 Infiniti Code

1. What are the common symptoms of OBDII code C1168 in an Infiniti related to the Engine Speed Signal?

The common symptoms include issues with the vehicle's speedometer, erratic or incorrect tachometer readings, and potential engine performance issues.

2. What are the possible causes of OBDII code C1168 related to the Engine Speed Signal in an Infiniti?

Possible causes include a faulty engine speed sensor, damaged wiring or connectors in the engine speed signal circuit, or an issue with the vehicle's ECM (Engine Control Module).

3. How can I diagnose the OBDII code C1168 in my Infiniti related to the Engine Speed Signal?

Diagnosing this code involves using a scan tool to retrieve the trouble codes, inspecting the engine speed sensor and its wiring, and performing tests to determine the root cause of the issue.

4. Can a DIY enthusiast repair OBDII code C1168 in an Infiniti related to the Engine Speed Signal?

While some simple checks like inspecting wiring and connectors can be done by DIY enthusiasts, resolving this code may require advanced diagnostic tools and expertise. It is recommended to seek professional help for proper repair.

5. Is it safe to continue driving with OBDII code C1168 related to the Engine Speed Signal in my Infiniti?

Continuing to drive with this code present can lead to potential issues with engine performance and speedometer accuracy. It is advisable to address the problem promptly to avoid further complications.

6. How much does it typically cost to repair OBDII code C1168 related to the Engine Speed Signal in an Infiniti?

The cost of repair can vary based on the specific cause of the issue. It is recommended to get a diagnostic assessment from a qualified mechanic to determine the exact repair cost.

7. Are there any preventative measures to avoid OBDII code C1168 related to the Engine Speed Signal in an Infiniti?

Regular maintenance and timely inspection of the engine speed sensor and related components can help prevent issues that may trigger this trouble code.

8. Can weather conditions impact the occurrence of OBDII code C1168 in an Infiniti related to the Engine Speed Signal?

Extreme weather conditions such as temperature fluctuations or moisture can potentially affect the engine speed sensor and its operation, leading to the triggering of this code.

9. How long does it typically take to repair OBDII code C1168 related to the Engine Speed Signal in an Infiniti?

The repair time can vary depending on the exact cause of the issue and the complexity of the repair process. It is advisable to consult with a mechanic for a more accurate estimate.

10. Does OBDII code C1168 in an Infiniti related to the Engine Speed Signal affect vehicle safety?

While this code may not directly impact safety, it can lead to inaccuracies in speedometer readings and potential engine performance issues, which could affect overall driving experience.