These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.

EVAP System Pressure Sensor/Switch C Circuit

EVAP System Pressure Sensor/Switch C Circuit Range/Performance

EVAP System Pressure Sensor/Switch C Circuit Low

EVAP System Pressure Sensor/Switch C Circuit High

EVAP System Pressure Sensor/Switch C Circuit Intermittent

Turbocharger/Supercharger Boost Control Module A Calibration Not Learned/Programmed

Turbocharger/Supercharger Boost Control Module B Calibration Not Learned/Programmed

A SENT status problem in bank 1 wastegate feedback

Bank 2 wastegate position data with invalid SENT status

charge-air cooler pump speed above its monitored range

understanding the pump underspeed monitor without misusing its threshold

Coolant pump underspeed is a sustained tracking deficit

Coolant pump A runs faster than its stabilized command

Coolant pump A reports speed below its requested operation

Intake Air O2 Sensor Circuit Bank 1

Intake Air O2 Sensor Circuit Low Voltage Bank 1

Intake Air O2 Sensor Circuit High Voltage Bank 1

Intake Air O2 Sensor Heater Control Circuit/Open Bank 1

Intake Air O2 Sensor Heater Control Circuit Range/Performance Bank 1

Intake Air O2 Sensor Heater Control Circuit Low Bank 1

Intake Air O2 Sensor Heater Control Circuit High Bank 1

Turbocharger/Supercharger B Temperature Sensor Circuit

Turbocharger/Supercharger B Temperature Sensor Circuit Low

Turbocharger/Supercharger B Temperature Sensor Circuit High

Turbocharger/Supercharger B Temperature Sensor Circuit Circuit Range/Performance

Bank 1 wastegate feedback outside its learned closed-stop band

Why the bank 2 wastegate closed-stop reference fails

Cold-start multi-pulse fueling misses opening events across the engine

Global injection-pulse monitoring detects missing opening signatures

exhaust valve learned endpoints outside their allowed windows

low supply to the exhaust pressure valve motor

exhaust valve H-bridge temperature above its limit

Reductant Quality Sensor Circuit Intermittent/Erratic

Vehicle Conditions Incorrect for Particulate Matter Sensor Regeneration

Pump A actuator-stuck status is narrower than a cooling-system diagnosis

Pump A supply status cannot be inferred from one battery reading

A pump A thermal report does not directly measure engine overheating

An underspeed report needs a command relationship and correct pump identity

A pump underspeed label must be read through the reported-speed format

Coolant Pump D Underspeed

The cited pump-stalled row actually checks speed while commanded off

Starter-generator belt performance inferred from speed ratio

Catalyst Feedgas Performance

Particulate Filter Feedgas Performance

NOx Exceedance - SCR NOx Catalyst Performance

NOx Exceedence - Empty Reagent Tank

NOx Exceedence - Interruption of Reagent Dosing Activity

NOx Exceedence - Insufficient Reagent Quality

NOx Exceedence - Low Reagent Consumption

NOx Exceedence - Incorrect EGR Flow

NOx Exceedence - Deactivation of EGR

Duramax fluid-quality messages and the difference between a failed and unfinished test

NOx Exceedence - NOx control monitoring system

Compass diesel inducement warning linked to a BCM software version

Alternative Fuel Consumption Too Low

Alternative Fuel Consumption Too High

Alternative Fuel Tank Empty

Fuel Pump Secondary Circuit Performance

Engine Coolant Temperature Sensor 4 Circuit Intermittent/Erratic

Sensor 5 erratic temperature is a rate-of-change judgment

Engine Coolant Temperature Sensor 6 Circuit

Engine Coolant Temperature Sensor 6 Circuit Range/Performance

Coolant sensor 6 circuit low follows a logical-to-input mapping

Coolant sensor 6 circuit high has contradictory assignment wording

Sensor 6’s implausible temperature jump uses its own response model

Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit

Air bypass valve position circuit below its signal range

Air bypass position signal high, including open-circuit causes

Turbocharger/Supercharger Bypass Valve A Position Exceeded Learning Limit

Turbocharger/Supercharger Bypass Valve A Supply Voltage Low

Turbocharger/Supercharger Bypass Valve A Driver Current/Temperature Too High

Charge Air Cooler Coolant Pump A Stuck/Stalled

Charge Air Cooler Coolant Pump A Supply Voltage Circuit

Charge Air Cooler Coolant Pump A Control Module Overtemperature

Battery Charging System Positive Contactor B Circuit

Battery Charging System Positive Contactor B Stuck Closed

Battery Charging System Positive Contactor B Stuck Open

Battery Charging System Positive Contactor B Control Circuit/Open

Battery Charging System Positive Contactor B Control Circuit Range/Performance

Battery Charging System Positive Contactor B Control Circuit Low