P00B0 Turbocharger/Supercharger Boost Control B Module Performance

Boost control B here is an electronic actuator with its own electronics (a "smart" actuator), usually on the variable turbine geometry, with its own position sensor and controlled over a data bus or a pulsed signal. It checks itself and reports internal faults to the engine control module; documented examples are pattern errors, overcurrent and checksum errors. The control module cannot narrow down a fault inside the actuator further. B denotes the second, separate actuator. P00B0 is set when actuator B reports an internal fault. No manufacturer description naming this exact code was found; the explanation follows its documented counterpart.

Likely causes

Symptoms

• Check engine light on
• Loss of power or limp mode with reduced boost

Repair estimate

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

Related codes

References: law.cornell.edu, gsi.ext.gm.com.