Audi DTC P0601 – Lack of proper voltage to the PCM, Defective PCM memory module, Defective PCM ground circuit(s), Defective PCM controlled output devices
DTC P0601 meaning on Audi
DTC P0601 indicates a problem with the Powertrain Control Module (PCM) in Audi vehicles. This code signifies that the PCM has detected an internal malfunction, specifically related to its memory module. The PCM is responsible for managing various engine and transmission functions, and any issues with it can lead to performance problems.
Audi DTC P0601 symptoms
Common symptoms associated with DTC P0601 may include:
- Check Engine Light illuminated
- Engine performance issues
- Stalling or rough idling
- Inability to start the engine
- Loss of power or acceleration
Audi DTC P0601 causes
Several factors can lead to the P0601 code being triggered, including:
- Lack of proper voltage to the PCM
- Defective PCM memory module
- Defective PCM ground circuit(s)
- Defective PCM controlled output devices
Audi DTC P0601 seriousness
DTC P0601 is considered a serious issue as it can affect the vehicle’s drivability and overall performance. If left unaddressed, it may lead to further complications, including:
- Increased emissions
- Potential engine damage
- Complete engine failure
How to diagnose DTC P0601 on Audi
To diagnose DTC P0601, follow these steps:
- Use an OBD-II scanner to confirm the P0601 code.
- Check for any additional trouble codes that may provide more context.
- Inspect the PCM connectors and wiring for damage or corrosion.
- Test the voltage supply to the PCM to ensure it is within specifications.
- Check the ground circuits for continuity and proper connections.
- Perform a visual inspection of the PCM and its components.
How to fix DTC P0601 on Audi step-by-step instructions
To fix DTC P0601, follow these steps:
- Repair or replace any damaged wiring or connectors related to the PCM.
- Ensure the PCM is receiving the correct voltage replace the fuse if necessary.
- Check and repair any faulty ground connections.
- If the PCM memory module is defective, consider replacing the PCM.
- Reinstall the PCM and ensure all connections are secure.
- Clear the DTC using an OBD-II scanner and test drive the vehicle.
Recommended tools for Audi diagnostics
Explore our expert picks: The Best OBD2 Scanners for 2025
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.