Audi DTC P1655 – Please check DTC Memory of ADR Control Module
DTC P1655 meaning on Audi
The Diagnostic Trouble Code (DTC) P1655 on an Audi refers to a malfunction in the ADR (Automatic Distance Regulation) control module. This code indicates an issue with the control module responsible for managing the automatic distance regulation system in the vehicle.
Audi DTC P1655 symptoms
Symptoms of DTC P1655 on an Audi may include:
- Malfunction indicator light (MIL) illuminated on the dashboard
- Problems with the automatic distance regulation system
- Inconsistent cruise control operation
Audi DTC P1655 causes
Common causes of DTC P1655 on an Audi include:
- Faulty ADR control module
- Wiring or connection issues related to the ADR system
- Software glitches in the control module
Audi DTC P1655 seriousness
The seriousness of DTC P1655 on an Audi depends on the underlying cause. While it may not directly affect the drivability of the vehicle, issues with the automatic distance regulation system can impact safety and convenience features.
How to diagnose DTC P1655 on Audi
To diagnose DTC P1655 on an Audi, a mechanic would typically:
- Use a diagnostic scanner to retrieve the fault codes from the ADR control module
- Inspect the wiring and connections related to the ADR system for any visible damage or corrosion
- Perform a thorough system check to identify the root cause of the issue
How to fix DTC P1655 on Audi
To fix DTC P1655 on an Audi, the following steps may be taken:
- Replace the faulty ADR control module if necessary
- Repair any damaged wiring or connections in the ADR system
- Update the software in the control module to address any glitches
How to erase DTC P1655 on Audi
To erase DTC P1655 on an Audi, a mechanic can use a diagnostic scanner to clear the fault codes stored in the ADR control module. Once the underlying issue has been addressed and fixed, the DTC can be erased to reset the system.
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.