AutoCodes – Chevrolet – C1298 Chevrolet

C1298 Chevrolet Code - PCM Class 2 Serial Data Link Malfunction

Quick Answer

The C1298 sets when the Powertrain Control Module (PCM) to Electronic Brake Control Module (EBCM) serial data communications is interrupted. Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module (EBCM) harness is open or shorted, Electronic Brake Control Module (EBCM) 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: C1298 Chevrolet indicates PCM Class 2 Serial Data Link Malfunction.
Common causes: Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module (EBCM) harness is open or shorted, Electronic Brake Control Module (EBCM) 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 7,750

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 Oct 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1298 Chevrolet Description

The C1298 sets when the Powertrain Control Module (PCM) to Electronic Brake Control Module (EBCM) serial data communications is interrupted.

OBDII Code C1298 Chevrolet - PCM Class 2 Serial Data Link Malfunction - AutoCodes.com — C1298 Chevrolet Code - PCM Class 2 Serial Data Link Malfunction

What does this mean?

What are the Possible Causes of the DTC C1298 Chevrolet?

Faulty Electronic Brake Control Module (EBCM)
Electronic Brake Control Module (EBCM) harness is open or shorted
Electronic Brake Control Module (EBCM) circuit poor electrical connection

How to Fix the DTC C1298 Chevrolet?

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 C1298 Chevrolet 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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Get the C1298 Chevrolet 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 C1298 Chevrolet Code

1. What are the common symptoms of OBDII code C1298 Chevrolet (PCM Class 2 Serial Data Link Malfunction)?

The common symptoms include issues with the vehicle's communication systems, such as erratic or non-functional gauges, warning lights on the dashboard, and difficulty connecting to diagnostic tools.

2. What are the possible causes of OBDII code C1298 Chevrolet?

Possible causes of this code include damaged wiring, loose connections, a faulty PCM (Powertrain Control Module), or issues with the Class 2 serial data link communication network.

3. How can I diagnose OBDII code C1298 Chevrolet?

Diagnosis typically involves using a professional OBDII scanner to retrieve the specific fault codes, inspecting the wiring and connections related to the PCM and data link, and performing a thorough visual inspection for any visible damage.

4. Can I still drive my vehicle with OBDII code C1298 Chevrolet present?

It is not recommended to continue driving the vehicle with this code present, as it may affect the proper functioning of critical vehicle systems. Addressing the issue promptly is advised.

5. How can I repair OBDII code C1298 Chevrolet?

Repairing this code may involve repairing or replacing damaged wiring, ensuring secure connections, addressing any PCM issues, and resolving any problems with the Class 2 serial data link network.

6. Is it possible to reset OBDII code C1298 Chevrolet without fixing the underlying issue?

While you can clear the code temporarily, it will likely reappear if the root cause is not addressed. It is advisable to diagnose and fix the underlying problem to prevent future occurrences.

7. Can a DIY enthusiast fix OBDII code C1298 Chevrolet at home?

Depending on your skill level and access to tools, some DIY enthusiasts may be able to address this code by checking wiring and connections. However, complex issues with the PCM or data link network may require professional assistance.

8. Are there any recalls or technical service bulletins related to OBDII code C1298 Chevrolet?

It's recommended to check with Chevrolet dealerships or online resources for any relevant recalls or technical service bulletins specific to this code, as manufacturers may provide guidance on known issues.

9. Will fixing OBDII code C1298 Chevrolet improve my vehicle's performance?

Addressing this code can help ensure proper communication between various vehicle systems, potentially improving performance and preventing further issues related to data link malfunctions.

10. How long does it usually take to repair OBDII code C1298 Chevrolet?

The repair time can vary depending on the specific cause of the code and the complexity of the fix. Simple wiring repairs may take less time, while diagnosing and addressing PCM or network issues could be more time-consuming.