U11F9 RAM Code - Engine Did Not Respond To Adaptive Cruise Control Torque Request
Quick Answer
The Diagnostic Trouble Code (DTC) sets when the Module detects that the Powertrain Control Module is not responding to Adaptive Cruise Control (ACC) Module torque request. Common causes include Check for Body Control Module (BCM) codes, 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
- U11F9 RAM indicates Engine Did Not Respond To Adaptive Cruise Control Torque Request.
- Common causes
- Common causes include Check for Body Control Module (BCM) codes, 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.
Code U11F9 RAM Description
What are the Possible Causes of the DTC U11F9 RAM?
- Check for Body Control Module (BCM) codes
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC U11F9 RAM?
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 U11F9 RAM 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 U11F9 RAM Code
What does the OBDII code U11F9 mean on a RAM vehicle?
The U11F9 code indicates that the engine did not respond to a torque request from the Adaptive Cruise Control (ACC) system, meaning a communication or performance issue exists between the systems.
What are the common symptoms of the U11F9 code?
Symptoms may include the Adaptive Cruise Control not functioning, a warning light on the dashboard, reduced engine performance, or the ACC system being disabled.
What causes the U11F9 code to appear?
Common causes include communication issues between the Powertrain Control Module (PCM) and ACC module, a faulty PCM, a malfunctioning ACC module, damaged wiring, or poor electrical connections.
Can I still drive my RAM with the U11F9 code active?
Yes, you can usually drive the vehicle, but the Adaptive Cruise Control system may not work, and there could be reduced performance or safety features depending on the issue's severity.
How is the U11F9 code diagnosed?
A technician will use a scan tool to verify the code, inspect the wiring and connectors between the PCM and ACC module, and check for any related communication errors or hardware malfunctions.
What repairs are needed to fix the U11F9 code?
Repairs may include repairing or replacing damaged wiring, reconnecting loose electrical connections, updating or reprogramming the PCM or ACC module, or replacing faulty components.
Does a U11F9 code always mean a component needs to be replaced?
No, sometimes the issue is caused by a loose connection, damaged wiring, or outdated software, which can be repaired without replacing major components.
How much does it cost to repair the U11F9 code on a RAM vehicle?
The cost varies depending on the root cause but may range from $100 to $500, with software updates and minor repairs being less expensive than replacing modules.
Can a software update fix the U11F9 code?
Yes, in some cases, a software update for the PCM or ACC module can resolve communication issues and clear the U11F9 code.
What happens if the U11F9 code is ignored?
Ignoring this code could lead to continued inoperability of the Adaptive Cruise Control system, reduced driving convenience, and potential safety risks if the issue worsens.
Discuss the causes and fixes for U11F9 RAM OBDII Code
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