C1298 Pontiac 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 Pontiac 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.
Code C1298 Pontiac Description
What are the Possible Causes of the DTC C1298 Pontiac?
- 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 Pontiac?
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 Pontiac 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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Frequently Asked Questions about C1298 Pontiac Code
1. What does the OBDII code C1298 mean on a Pontiac?
C1298 indicates a PCM Class 2 Serial Data Link Malfunction, meaning there is a communication issue between the Powertrain Control Module (PCM) and other modules on the Class 2 data communication network.
2. What are the common symptoms of the C1298 code?
Symptoms may include warning lights on the dashboard (such as the ABS or Check Engine Light), erratic gauge behavior, failure of certain vehicle systems, or intermittent performance issues.
3. What causes the C1298 code to appear?
Common causes include damaged wiring or connectors in the Class 2 data link circuit, a malfunctioning PCM, a short to ground or power in the communication bus, or faults in other connected modules.
4. How do I diagnose the C1298 code on a Pontiac?
Start by checking the integrity of the Class 2 data link wiring and connectors, inspect for loose or damaged connections, and use a scan tool capable of reading live data to verify module communication.
5. Can a bad PCM cause the C1298 code?
Yes, a malfunctioning PCM can cause the C1298 code if it fails to communicate properly with other modules on the Class 2 data link.
6. Is the C1298 code serious?
Yes, it can be serious because it affects the communication between critical vehicle systems. Ignoring it may lead to further malfunctions or unsafe driving conditions.
7. How do I fix the C1298 code?
Repairs may include repairing or replacing damaged wiring or connectors, addressing short circuits, reprogramming or replacing the PCM, or diagnosing and repairing faults in other modules.
8. Can I drive my car with a C1298 code?
Driving with a C1298 code is not recommended, as it could impair critical vehicle functions like ABS, traction control, or engine management.
9. What tools are needed to troubleshoot the C1298 code?
You’ll need a diagnostic scan tool with Class 2 data communication capabilities, a multimeter for testing electrical circuits, and possibly a wiring diagram for the vehicle.
10. How much does it cost to repair the C1298 code on a Pontiac?
Repair costs can vary widely depending on the root cause. Simple repairs like fixing wiring may cost under $100, while PCM replacement or reprogramming can cost several hundred dollars.
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