The control module detected that closed-loop control of the Turbocharger (TC) boost deviated from its target. This is the manufacturer-specific definition used by Volvo.
Possible causes
Turbocharger (TC) overboost
TuningBot DTC Database · v4.37.15
Manufacturer-specific interpretation for Volvo. All interpretations of P1237
The control module detected that closed-loop control of the Turbocharger (TC) boost deviated from its target. This is the manufacturer-specific definition used by Volvo.
Turbocharger (TC) overboost
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Turbocharger (TC) boost control deviation. The control module detected that closed-loop control of the Turbocharger (TC) boost deviated from its target. This is the manufacturer-specific definition used by Volvo.
P1237 is a manufacturer-specific code. In this database it is documented for: Volvo. The same number can mean something different on other brands.
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Understand the system behind this code: Diagnostic Strategy and DTC Logic