The control module registered the fault condition described as "Fuel Injection Pump Controller Calibration Error". This is the manufacturer-specific definition used by Chrysler.
TuningBot DTC Database · v4.37.15
P1691 Chrysler - Fuel Injection Pump Controller Calibration Error
Manufacturer-specific interpretation for Chrysler. All interpretations of P1691
What P1691 means
Related and nearby codes
How to read P1691
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 P1691
What does P1691 mean?
Fuel Injection Pump Controller Calibration Error. The control module registered the fault condition described as "Fuel Injection Pump Controller Calibration Error". This is the manufacturer-specific definition used by Chrysler.
Is P1691 generic or manufacturer-specific?
P1691 is a manufacturer-specific code. In this database it is documented for: Chrysler. The same number can mean something different on other brands.
Can TuningBot remove P1691 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
