AutoCodesGMC – U1082 GMC

U1082 GMC Code - Invalid Or Missing Data For Engine Systems

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Powertrain Control Module (PCM), Powertrain Control Module (PCM) harness is open or shorted, Powertrain Control Module (PCM) 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
U1082 GMC indicates Invalid Or Missing Data For Engine Systems.
Common causes
Common causes include Faulty Powertrain Control Module (PCM), Powertrain Control Module (PCM) harness is open or shorted, Powertrain Control Module (PCM) 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 554
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 22, 2020
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Code U1082 GMC Description

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for the state of health monitoring/node alive messages. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. Once an identification number is learned by a module, it will monitor for that module node alive message. Each module on the class 2 serial data circuit is required to send a Node Alive message every 2 seconds. When no message is detected from a learned identification number for 5 seconds, a Diagnostic Trouble Code (DTC) U1082 is set.
OBDII Code U1082 GMC - Invalid Or Missing Data For Engine Systems - AutoCodes.com
U1082 GMC Code - Invalid Or Missing Data For Engine Systems

What are the Possible Causes of the DTC U1082 GMC?

  • Faulty Powertrain Control Module (PCM)
  • Powertrain Control Module (PCM) harness is open or shorted
  • Powertrain Control Module (PCM) circuit poor electrical connection

How to Fix the DTC U1082 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 U1082 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.

Need more information about the U1082 GMC 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 U1082 GMC Code

1. What are the common symptoms of OBDII code U1082 (GMC) - Invalid Or Missing Data For Engine Systems?

- Common symptoms include engine misfires, rough idling, poor fuel efficiency, and difficulty starting the vehicle.

2. What are the typical causes of OBDII code U1082 (GMC) - Invalid Or Missing Data For Engine Systems?

- The code U1082 can be triggered by issues such as faulty engine sensors, wiring problems, software glitches, or communication errors within the vehicle's network.

3. How can I diagnose OBDII code U1082 (GMC) - Invalid Or Missing Data For Engine Systems?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, checking the engine sensors and wiring for any visible damage, and performing a thorough inspection of the engine system.

4. Can a DIY enthusiast repair OBDII code U1082 (GMC) - Invalid Or Missing Data For Engine Systems?

- While some simple fixes like checking and cleaning sensor connections or resetting the code may be possible for DIYers, more complex issues may require professional diagnosis and repair.

5. What are some repair tips for resolving OBDII code U1082 (GMC) - Invalid Or Missing Data For Engine Systems?

- Repair tips may include checking and repairing damaged wiring, replacing faulty sensors, updating engine control module software, or resetting the code after addressing any underlying issues.

6. Are there any safety concerns associated with OBDII code U1082 (GMC) - Invalid Or Missing Data For Engine Systems?

- In some cases, unresolved issues related to this code can lead to poor engine performance, which may compromise vehicle safety. It's important to address the problem promptly.

7. How do I reset OBDII code U1082 (GMC) - Invalid Or Missing Data For Engine Systems?

- The code can typically be reset using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes. However, resetting the code without addressing the underlying issue may result in it reoccurring.

8. Can driving with OBDII code U1082 (GMC) - Invalid Or Missing Data For Engine Systems cause further damage?

- Continuing to drive with this code present can potentially cause damage to the engine or emissions system over time, especially if the underlying issue is not addressed promptly.

9. How much does it cost to fix OBDII code U1082 (GMC) - Invalid Or Missing Data For Engine Systems?

- The cost of fixing this code can vary depending on the underlying issue, the extent of repairs needed, and whether professional help is required. Costs may range from a simple sensor replacement to more complex wiring repairs.

10. Will OBDII code U1082 (GMC) - Invalid Or Missing Data For Engine Systems cause my vehicle to fail an emissions test?

- Yes, unresolved issues related to this code can affect the emissions output of your vehicle, potentially leading to a failed emissions test. It's important to address the problem before undergoing emissions testing.

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