Transmission Fan Relay Circuit Open Or Shorted
Jeep · engine
Data confidence62%
The control module detected an interruption (open circuit) in the Transmission Fan Relay circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Jeep.
Recommended checks
Perform a full module scan
Review freeze-frame and occurrence data
Confirm the exact vehicle, ECU and software context
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
479
Specific fault index within the subsystem.
Frequently asked questions about P1479
What does P1479 mean?
Transmission Fan Relay Circuit Open Or Shorted. The control module detected an interruption (open circuit) in the Transmission Fan Relay circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Jeep.
Is P1479 generic or manufacturer-specific?
P1479 is a manufacturer-specific code. In this database it is documented for: Jeep. The same number can mean something different on other brands.
Can TuningBot remove P1479 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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