AutoCodes – Saturn – U1301 Saturn

U1301 Saturn Code - High Voltage On Class 2 Serial Data Circuit

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Repair other code first. 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: U1301 Saturn indicates High Voltage On Class 2 Serial Data Circuit.
Common causes: Common causes include Repair other code first.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,933

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 Nov 27, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code U1301 Saturn 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. In addition to this, Node Alive messages are transmitted by each module on the class 2 serial data circuit about once every 2 seconds. When the module detects one of the following conditions on the class 2 serial data circuit for approximately 3 seconds, the setting of all other class 2 serial communication Diagnostic Trouble Code (DTC) is inhibited and a DTC will set.

OBDII Code U1301 Saturn - High Voltage On Class 2 Serial Data Circuit - AutoCodes.com — U1301 Saturn Code - High Voltage On Class 2 Serial Data Circuit

What does this mean?

What are the Possible Causes of the DTC U1301 Saturn?

Repair other code first

How to Fix the DTC U1301 Saturn?

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 does this mean?

Code Tech Notes

In most cases, the U1301 code is combined with other codes, fix other codes first.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U1301 Saturn 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 U1301 Saturn code?

Need more information on how to fix the U1301 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1301 Saturn 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 U1301 Saturn Code

1. What does the OBDII code U1301 for Saturn mean?

The U1301 code indicates a high voltage condition on the Class 2 serial data circuit in a Saturn vehicle.

2. What are the common symptoms of the U1301 OBDII code in a Saturn?

Common symptoms of the U1301 code may include issues with communication between various control modules, dashboard warning lights, and potential loss of certain vehicle functions.

3. What are the possible causes of the U1301 OBDII code on a Saturn?

Potential causes of the U1301 code in a Saturn include wiring harness issues, faulty control modules, corroded connectors, or a short circuit in the Class 2 data circuit.

4. How can I diagnose the U1301 code on my Saturn?

Diagnosing the U1301 code typically involves using a diagnostic scanner to retrieve the code, checking the wiring and connectors for any visible damage, and testing the control modules for proper operation.

5. Can I still drive my Saturn with the U1301 code present?

It is not recommended to drive your Saturn with the U1301 code active, as it may lead to further electrical issues or potential safety concerns due to communication failures between critical vehicle systems.

6. How can I repair the U1301 OBDII code on my Saturn?

Repairing the U1301 code involves fixing any wiring or connector issues, replacing faulty control modules if necessary, and clearing the code with a diagnostic scanner after the repairs are completed.

7. Are there any DIY tips to troubleshoot the U1301 code in my Saturn?

DIY tips for troubleshooting the U1301 code include checking for loose or damaged wiring, inspecting connectors for corrosion, and ensuring all control modules are securely connected.

8. Is the U1301 OBDII code specific to Saturn vehicles only?

The U1301 code is a generic code related to high voltage on the Class 2 serial data circuit and can be found in various vehicle makes and models, not limited to Saturn vehicles.

9. Can a mechanic help me fix the U1301 code on my Saturn?

Yes, a qualified mechanic with experience in diagnosing and repairing electrical issues can assist in fixing the U1301 OBDII code on your Saturn effectively.

10. How do I prevent the U1301 code from recurring in my Saturn?

To prevent the U1301 code from recurring, it's essential to perform regular maintenance checks on the vehicle's electrical system, address any wiring issues promptly, and ensure all connections are secure.