AutoCodes – Pontiac – C1275 Pontiac

C1275 Pontiac Code - PCM Serial Data Malfunction

Quick Answer

The Powertrain Control Module (PCM) monitors various parameters. Common causes include Faulty Electronic Brake Control Module (EBCM), Faulty Powertrain Control Module (PCM). 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: C1275 Pontiac indicates PCM Serial Data Malfunction.
Common causes: Common causes include Faulty Electronic Brake Control Module (EBCM), Faulty Powertrain Control Module (PCM).
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 5,620

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 Jan 20, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1275 Pontiac Description

The Powertrain Control Module (PCM) monitors various parameters. The PCM sets the OBDII code and will not allow traction control operation if any parameter falls outside a specified range. The PCM diagnoses a condition preventing the engine control portion of the traction control function and sends a serial data message to the Electronic Brake Control Module (EBCM) indicating that torque reduction is not allowed. The PCM will typically set a Diagnostic Trouble Code (DTC) and the EBCM will set this DTC.

OBDII Code C1275 Pontiac - PCM Serial Data Malfunction - AutoCodes.com — C1275 Pontiac Code - PCM Serial Data Malfunction

What does this mean?

What are the Possible Causes of the DTC C1275 Pontiac?

Faulty Electronic Brake Control Module (EBCM)
Faulty Powertrain Control Module (PCM)

How to Fix the DTC C1275 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 C1275 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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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 C1275 Pontiac Code

1. What are common symptoms of the OBDII code C1275 Pontiac (PCM Serial Data Malfunction)?

The common symptoms include issues with the vehicle's shifting, stalling, poor engine performance, and illuminated warning lights on the dashboard.

2. What are the potential causes of the C1275 Pontiac code?

Possible causes of this code include a faulty powertrain control module (PCM), damaged wiring or connectors in the serial data circuit, or a malfunctioning CAN bus network.

3. How can I diagnose the PCM Serial Data Malfunction error code?

Diagnosing the C1275 code typically involves using an OBDII scanner to retrieve the code, inspecting the wiring and connectors for any visible damage, and performing continuity tests to check for proper connectivity.

4. What repairs are typically required to fix the PCM Serial Data Malfunction issue?

Repairing the C1275 code may involve replacing a faulty PCM, repairing or replacing damaged wiring or connectors, or resetting the CAN bus network using a diagnostic tool.

5. Can I drive my Pontiac with the C1275 code present?

It is not recommended to drive the vehicle with the C1275 code present, as it can lead to further damage to the vehicle's systems and potentially unsafe driving conditions.

6. How much does it cost to repair the PCM Serial Data Malfunction error code?

The cost of repairing the C1275 code can vary depending on the specific cause of the issue, but it may range from a few hundred to a thousand dollars, including parts and labor.

7. How long does it take to fix the PCM Serial Data Malfunction problem?

The repair time for the C1275 code can vary based on the extent of the issue and the availability of parts, but it generally takes a few hours to a full day to diagnose and repair the problem.

8. Can I reset the C1275 code without fixing the underlying issue?

While you can clear the code using an OBDII scanner, it is not recommended to do so without addressing the root cause of the problem, as the issue may persist and trigger the code again.

9. Are there any DIY fixes for the C1275 Pontiac code?

DIY fixes for the C1275 code may include checking and cleaning the wiring and connectors, but more complex repairs involving the PCM or CAN bus network should be handled by a professional mechanic.

10. How can I prevent the PCM Serial Data Malfunction error code from reappearing?

Regular maintenance, such as checking the vehicle's wiring integrity and ensuring proper connections, can help prevent the recurrence of the C1275 code.