U0336 Code - Software Incompatibility With Restraints Control Module
Quick Answer
Some devices must be configured with specific software, serial numbers, vehicle options, or other information. Common causes include Restraints Control Module Programmed With Incorrect Software, Faulty Restraints Control Module. 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
- U0336 indicates Software Incompatibility With Restraints Control Module.
- Common causes
- Common causes include Restraints Control Module Programmed With Incorrect Software, Faulty Restraints Control Module.
- 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 U0336 Description
What are the Possible Causes of the DTC U0336?
- Restraints Control Module Programmed With Incorrect Software
- Faulty Restraints Control Module
How to Fix the DTC U0336?
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 U0336 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 U0336 Code
1. What does the OBDII code U0336 mean?
U0336 indicates a software incompatibility issue between the vehicle's main control systems and the Restraints Control Module (RCM), which manages safety systems like airbags.
2. What are the common symptoms of code U0336?
Symptoms may include an illuminated check engine light or airbag warning light, malfunctioning airbags, or issues with other safety restraint systems.
3. What causes code U0336 to appear?
The code is typically triggered by mismatched or incompatible software versions after a module replacement, software update, or reprogramming.
4. Can code U0336 affect airbag deployment?
Yes, this code can prevent the airbag system from functioning properly, which may compromise occupant safety in the event of a collision.
5. How is code U0336 diagnosed?
A technician will use a scan tool to check for stored codes, verify software versions in the affected modules, and confirm compatibility issues.
6. Can I drive with a U0336 code?
It’s not recommended to drive with this code active, as it can disable critical safety systems like airbags, increasing the risk of injury in an accident.
7. How is code U0336 fixed?
The solution typically involves reprogramming or updating the software in the Restraints Control Module to ensure compatibility with other vehicle systems.
8. Do I need to replace the Restraints Control Module if I get code U0336?
Not necessarily. In most cases, the issue can be resolved with a software update rather than replacing the module.
9. Can a dead battery cause code U0336?
A dead or weak battery can sometimes lead to communication or software errors, but this code is more commonly related to software mismatches rather than power issues.
10. How much does it cost to fix code U0336?
Repair costs can vary, but reprogramming or updating software typically costs between $100 and $300, depending on the vehicle and dealership or repair shop rates.
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