AutoCodes – Pontiac – C0240 Pontiac

C0240 Pontiac Code - Powertrain Control Module Traction Control Not Allowed

Quick Answer

The Powertrain Control Module (PCM) and the Electronic Brake Control Module (EBCM) communicate on the serial data link, whenever the ignition is ON. Common causes include Faulty Throttle Actuator, Throttle Actuator harness is open or shorted, Throttle Actuator 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: C0240 Pontiac indicates Powertrain Control Module Traction Control Not Allowed.
Common causes: Common causes include Faulty Throttle Actuator, Throttle Actuator harness is open or shorted, Throttle Actuator 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 3,573

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 Jul 30, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0240 Pontiac Description

The Powertrain Control Module (PCM) and the Electronic Brake Control Module (EBCM) communicate on the serial data link, whenever the ignition is ON. The EBCM receives a serial data message stating that the PCM has lost the ability to reduce engine torque. A requested torque signal malfunction is only one possible cause for the PCM to lose the ability to perform traction control. DTC C0240 may set due to engine overheating, throttle actuator control failure, loss of ignition timing control by the PCM, etc.

OBDII Code C0240 Pontiac - Powertrain Control Module Traction Control Not Allowed - AutoCodes.com — C0240 Pontiac Code - Powertrain Control Module Traction Control Not Allowed

What does this mean?

What are the Possible Causes of the DTC C0240 Pontiac?

Faulty Throttle Actuator
Throttle Actuator harness is open or shorted
Throttle Actuator circuit poor electrical connection
Engine overheating

How to Fix the DTC C0240 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 C0240 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 C0240 Pontiac Code

1. What are the common symptoms of OBDII code C0240 in a Pontiac related to the Powertrain Control Module Traction Control Not Allowed issue?

- Common symptoms include the traction control light illuminating on the dashboard, traction control system becoming disabled, and potential loss of stability control while driving.

2. What are some possible causes of OBDII code C0240 in a Pontiac triggering the Powertrain Control Module Traction Control Not Allowed warning?

- Possible causes may include a malfunctioning wheel speed sensor, issues with the traction control module, faulty wiring or connections, or a problem with the powertrain control module itself.

3. How can I diagnose the OBDII code C0240 in a Pontiac indicating Powertrain Control Module Traction Control Not Allowed?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific trouble code, inspecting the traction control system components for any visible damage, and conducting a thorough system check to identify the root cause.

4. What are some recommended repair tips for addressing the OBDII code C0240 in a Pontiac associated with the Powertrain Control Module Traction Control Not Allowed error?

- Repair tips may include checking and potentially replacing the wheel speed sensors, inspecting and repairing any damaged wiring or connections, resetting the powertrain control module, or seeking professional assistance for complex issues.

5. Can I continue driving my Pontiac if the OBDII code C0240 with the Powertrain Control Module Traction Control Not Allowed warning is active?

- It is generally not recommended to drive your Pontiac with this issue as it can compromise the vehicle's traction and stability control systems, potentially leading to unsafe driving conditions.

6. Is it possible to reset the OBDII code C0240 in a Pontiac related to the Powertrain Control Module Traction Control Not Allowed without addressing the underlying problem?

- While you can clear the trouble code using an OBDII scanner, it is crucial to address the root cause of the issue to prevent the warning from reappearing and ensure the proper functioning of the traction control system.

7. How much does it typically cost to repair the OBDII code C0240 in a Pontiac indicating Powertrain Control Module Traction Control Not Allowed?

- Repair costs can vary depending on the specific cause of the issue, the parts needed for replacement, and whether you choose to perform the repairs yourself or seek professional help. It's advisable to obtain estimates from reputable mechanics or service centers.

8. Are there any preventative maintenance measures to avoid encountering the OBDII code C0240 in a Pontiac associated with the Powertrain Control Module Traction Control Not Allowed issue?

- Regularly inspecting and maintaining the traction control system components, such as wheel speed sensors and wiring, can help prevent issues that may trigger the C0240 trouble code and ensure the proper functioning of the system.

9. Can a DIY enthusiast with basic automotive knowledge fix the OBDII code C0240 in a Pontiac related to the Powertrain Control Module Traction Control Not Allowed, or is professional assistance necessary?

- Depending on the specific cause of the issue, DIY enthusiasts with adequate automotive knowledge may be able to address certain aspects of the problem, such as sensor replacement or wiring repairs. However, complex issues may require professional diagnosis and repair.

10. How long does it typically take to repair the OBDII code C0240 in a Pontiac indicating Powertrain Control Module Traction Control Not Allowed?

- The repair duration can vary based on the complexity of the underlying problem, the availability of parts for replacement, and whether you choose to perform the repairs yourself or seek assistance from a professional technician. It's advisable to plan for potential downtime accordingly.