The control module detected a fault associated with the Heater relay control circuit 1 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Renault. Renault diagnostic tools (CLIP) report this fault as DF032.
TuningBot DTC Database · v4.37.15
P1641 Renault - Heater relay control circuit 1
Manufacturer-specific interpretation for Renault. All interpretations of P1641
What P1641 means
Related and nearby codes
How to read P1641
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P1641
What does P1641 mean?
Heater relay control circuit 1. The control module detected a fault associated with the Heater relay control circuit 1 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Renault. Renault diagnostic tools (CLIP) report this fault as DF032.
Is P1641 generic or manufacturer-specific?
P1641 is a manufacturer-specific code. In this database it is documented for: Renault. The same number can mean something different on other brands.
Can TuningBot remove P1641 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
