AutoCodes – Lincoln – U1262 Lincoln

U1262 Lincoln Code - Communication Bus Fault

Quick Answer

This code indicates a communication issue (Bus+, Bus-) between the Passive Anti-Theft Systems (PATS)/Hybrid Electronic Cluster (HEC)/Ignition Control Module (ICM) and some other modules. 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: U1262 Lincoln indicates Communication Bus Fault.
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 3,462

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 May 10, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1262 Lincoln Description

This code indicates a communication issue (Bus+, Bus-) between the Passive Anti-Theft Systems (PATS)/Hybrid Electronic Cluster (HEC)/Ignition Control Module (ICM) and some other modules. Do not perform PATS diagnostics if a no start is not reported of if the theft indicator is not flashing rapidly at ignition RUN position. If the indicator is flashing, check to make sure the Powertrain Control Module (PCM) is powered up and operating. If it's not, continue with PCM diagnostics.

OBDII Code U1262 Lincoln - Communication Bus Fault - AutoCodes.com — U1262 Lincoln Code - Communication Bus Fault

What does this mean?

What are the Possible Causes of the DTC U1262 Lincoln?

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 U1262 Lincoln?

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 U1262 Lincoln 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 U1262 Lincoln 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 U1262 Lincoln Code

1. What is the OBDII code U1262 for Lincoln vehicles?

The U1262 code indicates a communication bus fault in the vehicle's network system.

2. What are the common symptoms of a U1262 code in a Lincoln?

Common symptoms include issues with the vehicle's electronic systems, such as malfunctioning gauges, warning lights, or difficulty starting the vehicle.

3. What are the possible causes of a U1262 code in a Lincoln?

Potential causes include faulty wiring connections, damaged wiring harnesses, issues with the network communication module, or a defective powertrain control module (PCM).

4. How can I diagnose a U1262 code in my Lincoln?

Diagnosis typically involves using a diagnostic scanner to read the code, checking for other related codes, inspecting wiring connections, and testing the network communication module and PCM.

5. Can a U1262 code be fixed by resetting the PCM?

While resetting the PCM may temporarily clear the code, it is important to address the underlying communication bus fault issue to prevent the code from reappearing.

6. What are some repair tips for resolving a U1262 code in a Lincoln?

Repair tips may include checking and repairing any damaged wiring, ensuring proper connections, replacing faulty components, and performing a thorough inspection of the network system.

7. Is it safe to continue driving with a U1262 code in my Lincoln?

It is not recommended to drive the vehicle with an unresolved U1262 code, as it may lead to further electrical issues or potential safety hazards.

8. How much does it typically cost to repair a U1262 code in a Lincoln?

The cost of repairs can vary depending on the underlying cause of the code, the parts needed for replacement, and any labor charges from a mechanic. It is advisable to obtain quotes from reputable automotive repair shops.

9. Can a DIY enthusiast fix a U1262 code in a Lincoln?

While some DIY enthusiasts may be able to diagnose and repair a U1262 code, it is recommended to have the vehicle inspected by a professional mechanic, especially if the issue involves complex electrical systems.

10. How can I prevent a U1262 code from occurring in my Lincoln in the future?

Regular maintenance, timely repairs of any electrical issues, and avoiding water damage to the vehicle's wiring can help prevent U1262 communication bus faults in the future.