The control module detected that the signal in the 1 - 2 Shift Solenoid circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Chevrolet.
TuningBot DTC Database · v4.37.15
P1842 Diagnostic Trouble Code (4 interpretations)
4 manufacturer-specific interpretations across 4 manufacturers in the TuningBot DTC database.
Chevrolet
1 interpretation
Opel
1 interpretationThe control module detected that the Throttle position (TP) sensor value was outside the valid range. This is the manufacturer-specific definition used by Opel.
PSA
1 interpretationThe control module detected an interruption (open circuit) in the Fault circuit. Documented for the MCP 6-speed piloted manual gearbox ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models.
VAG
1 interpretationThe control module detected a fault associated with the Check DTC Memory Of Instrument Panel ECU circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Volkswagen.
Related and nearby codes
How to read P1842
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 P1842
What does P1842 mean?
Diagnostic Trouble Code (4 interpretations). The control module detected that the signal in the 1 - 2 Shift Solenoid circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Chevrolet.
Is P1842 generic or manufacturer-specific?
P1842 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Opel, PSA, VAG. The same number can mean something different on other brands.
Can TuningBot remove P1842 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
