TuningBot DTC Database · v4.37.15
9 manufacturer-specific interpretations across 8 manufacturers in the TuningBot DTC database.
ChryslerThe control module detected a fault associated with the Fuel Rail Pressure Malfunction Pressure Drop In Over - run circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.
DodgeThe control module detected a fault associated with the Fuel Rail Pressure Malfunction Pressure Drop In Over - run circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Dodge.
FordThe control module detected improper operation of the Alternator 2 circuit. This is the manufacturer-specific definition used by Ford.
JeepThe control module detected a fault associated with the Fuel Rail Pressure Malfunction Pressure Drop In Over - run circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Jeep.
Mercedes-BenzThe control module detected improper operation of the Intake air temperature (IAT) sensor(s). This is the manufacturer-specific definition used by Mercedes-Benz.
NissanThe control module registered the fault condition described as "Closed loop control - bank 1 - inoperative". This is the manufacturer-specific definition used by Nissan.
PSAThe control module detected that the Variable timing electrovalve was not coherent with related operating data. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
VAGThe control module detected that the air-fuel mixture stayed richer than the target despite full corrective control (Heated oxygen sensor (HO2S) 1, Bank 2 - lambda regulation, system). This is the manufacturer-specific definition used by Audi.
The control module detected that the air-fuel mixture stayed richer than the target despite full corrective control (Heated oxygen sensor lambda regulation, system). This is the manufacturer-specific definition used by Volkswagen.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (9 interpretations). The control module detected a fault associated with the Fuel Rail Pressure Malfunction Pressure Drop In Over - run circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.
P1148 is a manufacturer-specific code. In this database it is documented for: Chrysler, Dodge, Ford, Jeep, Mercedes-Benz, Nissan, PSA, VAG. The same number can mean something different on other brands.
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.
Understand the system behind this code: Oxygen Sensors (Lambda)
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