AutoCodes – GMC – U045A GMC

U045A GMC Code - Invalid Data Received From Parking Assist Control Module 'A'

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Parking Assist Control Module 'A', Parking Assist Control Module 'A' harness is open or shorted, Parking Assist Control Module 'A' 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: U045A GMC indicates Invalid Data Received From Parking Assist Control Module 'A'.
Common causes: Common causes include Faulty Parking Assist Control Module 'A', Parking Assist Control Module 'A' harness is open or shorted, Parking Assist Control Module 'A' 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 506

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 Apr 13, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U045A GMC Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. Some devices are constantly receiving information from other devices through serial data communication network. The invalid data Diagnostic Trouble Code (DTC) will be set when a receiving device detects a discrepancy in the information it receives from the Parking Assist Control Module 'A' causing its integrity to be questioned.

OBDII Code U045A GMC - Invalid Data Received From Parking Assist Control Module 'A' - AutoCodes.com — U045A GMC Code - Invalid Data Received From Parking Assist Control Module 'A'

What does this mean?

What are the Possible Causes of the DTC U045A GMC?

Faulty Parking Assist Control Module 'A'
Parking Assist Control Module 'A' harness is open or shorted
Parking Assist Control Module 'A' circuit poor electrical connection

How to Fix the DTC U045A GMC?

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 U045A GMC 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 U045A GMC Code

1. What are the common symptoms of an OBDII code U045A GMC?

The common symptoms include malfunctioning parking assist system, inaccurate distance readings, warning lights on the dashboard, and erratic behavior of parking sensors.

2. What can cause the OBDII code U045A GMC to appear?

The code U045A usually appears due to issues with the wiring, connectors, or the parking assist control module 'A'. It can also be triggered by a faulty control module or sensor.

3. How can I diagnose the OBDII code U045A GMC?

Diagnosing the code involves inspecting the wiring and connectors for any damage, checking the control module 'A' for proper functioning, and testing the parking sensors for accuracy.

4. What are some repair tips for fixing the OBDII code U045A GMC?

Repair tips include repairing or replacing damaged wiring and connectors, recalibrating the parking sensors, resetting the control module 'A', and updating the system software if necessary.

5. Is it safe to drive with the OBDII code U045A GMC active?

It is generally safe to drive with the code active, but the parking assist system may not function properly, leading to potential parking difficulties and reduced safety when maneuvering in tight spaces.

6. Can I reset the OBDII code U045A GMC myself?

Yes, you can attempt to reset the code by using an OBDII scanner to clear the error code. However, it is recommended to diagnose and fix the underlying issue to prevent the code from reappearing.

7. How much does it typically cost to repair the OBDII code U045A GMC?

The cost of repairing the code can vary depending on the extent of the issue, the parts needed for replacement, and labor charges. It is advisable to consult a professional mechanic for an accurate estimate.

8. Will the OBDII code U045A GMC cause my vehicle to fail an emissions test?

The code U045A is related to the parking assist system and is unlikely to cause your vehicle to fail an emissions test. However, it is important to address the issue to ensure the overall functionality of your vehicle.

9. How long does it take to repair the OBDII code U045A GMC?

The repair time can vary based on the specific problem causing the code. It can range from a quick fix like resetting the system to a more extensive repair involving sensor replacement or module reprogramming.

10. Can extreme weather conditions affect the appearance of the OBDII code U045A GMC?

Extreme weather conditions, such as heavy rain or extreme temperatures, can potentially affect the performance of the parking assist system and trigger the code U045A due to interference or damage to the system components.