AutoCodes – Jeep – U1147 Jeep

U1147 Jeep Code - Additional CAN Interior ECU Detected

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the Totally Integrated Power Module (TIPM) detects an additional Controller Area Network (CAN) Interior Bus module and requires reprogramming. Common causes include Additional Module Added/Removed From the CAN Interior Bus Network, Faulty Totally Integrated Power Module (TIPM). 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: U1147 Jeep indicates Additional CAN Interior ECU Detected.
Common causes: Common causes include Additional Module Added/Removed From the CAN Interior Bus Network, Faulty Totally Integrated Power Module (TIPM).
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 7,289

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Apr 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1147 Jeep Description

The Diagnostic Trouble Code (DTC) sets when the Totally Integrated Power Module (TIPM) detects an additional Controller Area Network (CAN) Interior Bus module and requires reprogramming.

OBDII Code U1147 Jeep - Additional CAN Interior ECU Detected - AutoCodes.com — U1147 Jeep Code - Additional CAN Interior ECU Detected

What does this mean?

What are the Possible Causes of the DTC U1147 Jeep?

Additional Module Added/Removed From the CAN Interior Bus Network
Faulty Totally Integrated Power Module (TIPM)

How to Fix the DTC U1147 Jeep?

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 U1147 Jeep 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.

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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 U1147 Jeep Code

What does the OBDII code U1147 mean for my Jeep?

The U1147 code indicates that an additional Controller Area Network (CAN) interior ECU (Electronic Control Unit) has been detected, which is not recognized by the vehicle's main computer.

What are the common symptoms associated with the U1147 code?

Symptoms may include malfunctioning interior electronics, warning lights on the dashboard, or a general loss of functionality in features controlled by the interior ECU.

What could cause the U1147 code to trigger?

Possible causes include a faulty interior ECU, damaged wiring or connectors, or issues with the vehicle's main computer not recognizing the additional ECU.

How can I diagnose the U1147 code accurately?

Start by using an OBDII scanner to confirm the U1147 code and check for any other related codes. Inspect wiring and connectors for damage and ensure that the additional ECU is properly installed and functioning.

Is it safe to drive my Jeep with the U1147 code?

While it may be safe to drive, you should address the issue as it could lead to further electrical problems or malfunctioning safety features.

What repairs are typically needed to fix the U1147 code?

Repairs may involve replacing the faulty ECU, repairing or replacing damaged wiring, or reprogramming the main computer to recognize the additional ECU.

Can I fix the U1147 code myself?

If you have experience with automotive electronics, you can troubleshoot and possibly fix the issue. However, for those unfamiliar with electrical systems, itâ€™s advisable to seek professional assistance.

Will clearing the U1147 code solve the problem?

Clearing the code may temporarily remove the warning light, but if the underlying issue is not addressed, the code is likely to return.

How much does it typically cost to repair the U1147 code?

Repair costs can vary widely depending on the specific issue, ranging from $100 for minor repairs to over $1,000 if an ECU replacement is necessary.

What is the importance of addressing the U1147 code?

Addressing the U1147 code is important for ensuring all vehicle systems function properly, maintaining safety features, and preventing further electrical issues.