The control module detected that the signal in the ISA Closed Throttle circuit stayed above the expected operating range. This is the manufacturer-specific definition used by Dodge.
TuningBot DTC Database · v4.37.15
P1038 Diagnostic Trouble Code (3 interpretations)
3 manufacturer-specific interpretations across 2 manufacturers in the TuningBot DTC database.
Dodge
1 interpretation
VAG
2 interpretationsThe control module detected an interruption (open circuit) in the Nitrogen oxides (NOx) heater circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.
Possible causes
- Wiring open circuit
- NOx sensor
The control module detected an interruption (open circuit) in the Nitrogen oxides (NOx) heater circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Volkswagen.
Possible causes
- Wiring open circuit
- NOx sensor
Related and nearby codes
How to read P1038
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 P1038
What does P1038 mean?
Diagnostic Trouble Code (3 interpretations). The control module detected that the signal in the ISA Closed Throttle circuit stayed above the expected operating range. This is the manufacturer-specific definition used by Dodge.
Is P1038 generic or manufacturer-specific?
P1038 is a manufacturer-specific code. In this database it is documented for: Dodge, VAG. The same number can mean something different on other brands.
Can TuningBot remove P1038 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: SCR / AdBlue System
