Injection system supply relay circuit (Power stage) : Open circuit
PSA · engine
Data confidence72%
The control module detected an interruption (open circuit) in the Injection system supply relay circuit (Power stage) circuit. Documented for the Bosch EDC16C34 injection ECU (DV6TED4 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
639
Specific fault index within the subsystem.
Frequently asked questions about P1639
What does P1639 mean?
Injection system supply relay circuit (Power stage) : Open circuit. The control module detected an interruption (open circuit) in the Injection system supply relay circuit (Power stage) circuit. Documented for the Bosch EDC16C34 injection ECU (DV6TED4 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Is P1639 generic or manufacturer-specific?
P1639 is a manufacturer-specific code. In this database it is documented for: PSA. The same number can mean something different on other brands.
Can TuningBot remove P1639 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.
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