AutoCodes – Cadillac – U2145 Cadillac

U2145 Cadillac Code - Lost Communication With Parking Assistance System

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Parking Assistance System (PAS), Parking Assistance System harness is open or shorted, Parking Assistance System 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: U2145 Cadillac indicates Lost Communication With Parking Assistance System.
Common causes: Common causes include Faulty Parking Assistance System (PAS), Parking Assistance System harness is open or shorted, Parking Assistance System 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 632

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 Jun 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U2145 Cadillac Description

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device. A loss of serial data communications Diagnostic Trouble Code (DTC) does not represent a failure of the devices that contain the stored code. The DTC will set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U2145 Cadillac - Lost Communication With Parking Assistance System - AutoCodes.com — U2145 Cadillac Code - Lost Communication With Parking Assistance System

What does this mean?

What are the Possible Causes of the DTC U2145 Cadillac?

Faulty Parking Assistance System (PAS)
Parking Assistance System harness is open or shorted
Parking Assistance System circuit poor electrical connection

How to Fix the DTC U2145 Cadillac?

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 U2145 Cadillac 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 U2145 Cadillac Code

1. What are the common symptoms of OBDII code U2145 in a Cadillac related to the Parking Assistance System?

The common symptoms include a malfunction indicator light (MIL) illuminating on the dashboard, loss of communication with the parking assistance system, and potential issues with the vehicle's parking sensors.

2. What are the possible causes of the U2145 code in a Cadillac?

The U2145 code typically indicates a communication problem between the vehicle's onboard diagnostic system and the parking assistance system. Possible causes may include damaged wiring, a faulty control module, or issues with the parking sensors.

3. How can I diagnose the U2145 code in my Cadillac?

Diagnosing the U2145 code involves using an OBDII scanner to retrieve the specific fault code. Additionally, checking the wiring connections, inspecting the parking sensors, and testing the control module can help pinpoint the issue.

4. Can I still drive my Cadillac with the U2145 code present?

While it may be possible to drive the vehicle with the U2145 code, it is not recommended as the parking assistance system may not function properly, increasing the risk of accidents or damage to the vehicle.

5. How can I repair the U2145 code in my Cadillac?

Repairing the U2145 code may involve repairing or replacing damaged wiring, replacing faulty parking sensors, or reprogramming the control module. It is recommended to consult a professional mechanic for an accurate diagnosis and repair.

6. Are there any DIY tips for troubleshooting the U2145 code in a Cadillac?

DIY tips for troubleshooting the U2145 code include checking the fuse related to the parking assistance system, inspecting the wiring harness for visible damage, and ensuring the parking sensors are clean and free of obstructions.

7. Can extreme weather conditions trigger the U2145 code in a Cadillac?

Extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially affect the performance of the parking assistance system and trigger the U2145 code due to moisture or wiring issues.

8. How long does it typically take to repair the U2145 code in a Cadillac?

The repair time for the U2145 code can vary depending on the specific cause of the issue. Simple fixes like replacing a fuse or cleaning sensors may take a short time, while more complex repairs could require several hours or more.

9. Will resetting the OBDII code U2145 in my Cadillac make the issue go away?

Resetting the U2145 code may temporarily turn off the MIL, but if the underlying issue causing the code is not addressed, the code is likely to reappear. It is important to diagnose and repair the problem to prevent future issues.

10. Is it necessary to visit a dealership for repair of the U2145 code in a Cadillac?

While visiting a dealership for repair of the U2145 code is an option, independent automotive repair shops and qualified mechanics can also diagnose and repair the issue effectively. It is essential to choose a reputable professional for accurate and reliable repairs.