P2642 Chrysler Code - Torque Management Feedback Signal 'B' Range/Performance
Quick Answer
To improve shift feel, the Transmission Control Module (TCM) may request that the Engine Control Module (ECM) reduce engine torque during shift events. Common causes include Faulty Engine Control Module (ECM), Faulty Transmission Control Module (TCM), Engine Control Module (ECM) software update. 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
- P2642 Chrysler indicates Torque Management Feedback Signal 'B' Range/Performance.
- Common causes
- Common causes include Faulty Engine Control Module (ECM), Faulty Transmission Control Module (TCM), Engine Control Module (ECM) software update.
- 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 P2642 Chrysler Description
The torque reduction request is sent to the ECM through a communication network called the controller area network (CAN). Two circuits are used to communicate CAN data between the ECM and TCM.
A fault in the CAN will not cause the ECM to set the Diagnostic Trouble Codes (DTC). If a CAN fault occurs, other DTCs will set before this code.
The ECM set the OBDII code when the TCM receives a torque reduction failure message from the ECM.
What are the Possible Causes of the DTC P2642 Chrysler?
- Faulty Engine Control Module (ECM)
- Faulty Transmission Control Module (TCM)
- Engine Control Module (ECM) software update
- Transmission Control Module (TCM) software update
- Engine Control Module (ECM) harness is open or shorted
- Engine Control Module (ECM) circuit poor electrical connection
How to Fix the DTC P2642 Chrysler?
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 P2642 Chrysler 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 P2642 Chrysler code?
Need more information on how to fix the P2642 Chrysler code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2642 Chrysler code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2642 Chrysler Code
1. What are the common symptoms of OBDII code P2642 in a Chrysler vehicle?
- Common symptoms may include rough engine idle, reduced engine performance, and illumination of the check engine light.
2. What does the OBDII code P2642 in a Chrysler indicate?
- This code indicates an issue with the Torque Management Feedback Signal 'B' Range/Performance in the vehicle's powertrain control module.
3. What are the possible causes of OBDII code P2642 in a Chrysler?
- Possible causes include a faulty torque management feedback sensor, wiring issues, a malfunctioning powertrain control module, or a poor electrical connection.
4. How can I diagnose the OBDII code P2642 in my Chrysler?
- Diagnosing this code typically involves using a scan tool to retrieve the code, inspecting the torque management feedback sensor and its wiring, and testing the powertrain control module.
5. Can I continue driving my Chrysler with OBDII code P2642 present?
- It is not recommended to drive the vehicle with this code present, as it can lead to engine performance issues and potential damage if left unresolved.
6. How can I repair OBDII code P2642 in my Chrysler?
- Repair options may include replacing the torque management feedback sensor, repairing any damaged wiring, resetting the powertrain control module, or addressing any other identified issues.
7. Is OBDII code P2642 a common issue in Chrysler vehicles?
- While not extremely common, this code can occur in Chrysler vehicles, especially in models equipped with torque management systems.
8. Can a DIY enthusiast fix OBDII code P2642, or should I seek professional help?
- Depending on your skill level and access to tools, you may be able to address this code yourself by following diagnostic procedures and repair instructions. Otherwise, seeking professional help is advisable.
9. Are there any preventative measures to avoid OBDII code P2642 in my Chrysler?
- Regular maintenance, such as checking and replacing sensors as recommended, inspecting wiring for damage, and addressing any engine performance issues promptly, can help prevent this code from appearing.
10. How long does it typically take to repair OBDII code P2642 in a Chrysler?
- The repair time can vary depending on the exact cause of the issue and the complexity of the repair. It could range from a quick sensor replacement to more extensive troubleshooting and repairs, potentially taking a few hours to complete.
Discuss the causes and fixes for P2642 Chrysler OBDII Code
Code P2642 Chrysler comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
