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Powertrain code references — Page 90.

Engine, transmission and powertrain diagnostic references. Exact vehicle and module context still matters.

9,891 code references in powertrain

Generic OBD-II
P2B7A

EVAP System Pressure Sensor/Switch C Circuit

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Generic OBD-II
P2B7B

EVAP System Pressure Sensor/Switch C Circuit Range/Performance

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Generic OBD-II
P2B7C

EVAP System Pressure Sensor/Switch C Circuit Low

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Generic OBD-II
P2B7D

EVAP System Pressure Sensor/Switch C Circuit High

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Generic OBD-II
P2B7E

EVAP System Pressure Sensor/Switch C Circuit Intermittent

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Generic OBD-II
P2B7F

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

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Generic OBD-II
P2B80

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

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Generic OBD-II
P2B81

Wastegate Position Sensor A Circuit Performance

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Generic OBD-II
P2B82

Wastegate Position Sensor B Circuit Performance

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Generic OBD-II
P2B83

Charge Air Cooler Coolant Pump A Overspeed/Air In System

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Generic OBD-II
P2B84

Charge Air Cooler Coolant Pump A Underspeed

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Generic OBD-II
P2B85

Engine Coolant Pump Underspeed

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Generic OBD-II
P2B86

Coolant Pump A Overspeed/Air in System

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Generic OBD-II
P2B87

Coolant Pump A Underspeed

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Generic OBD-II
P2B88

Intake Air O2 Sensor Circuit Bank 1

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Generic OBD-II
P2B89

Intake Air O2 Sensor Circuit Low Voltage Bank 1

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Generic OBD-II
P2B8A

Intake Air O2 Sensor Circuit High Voltage Bank 1

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Generic OBD-II
P2B8B

Intake Air O2 Sensor Heater Control Circuit/Open Bank 1

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Generic OBD-II
P2B8C

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

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Generic OBD-II
P2B8D

Intake Air O2 Sensor Heater Control Circuit Low Bank 1

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Generic OBD-II
P2B8E

Intake Air O2 Sensor Heater Control Circuit High Bank 1

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Generic OBD-II
P2B8F

Turbocharger/Supercharger B Temperature Sensor Circuit

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Generic OBD-II
P2B90

Turbocharger/Supercharger B Temperature Sensor Circuit Low

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Generic OBD-II
P2B91

Turbocharger/Supercharger B Temperature Sensor Circuit High

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Generic OBD-II
P2B92

Turbocharger/Supercharger B Temperature Sensor Circuit Circuit Range/Performance

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Generic OBD-II
P2B93

Wastegate Position Sensor A Exceeded Learning Limit

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Generic OBD-II
P2B94

Wastegate Position Sensor B Exceeded Learning Limit

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Generic OBD-II
P2B95

Cold Start Injection Pulse Performance

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Generic OBD-II
P2B96

Injection Pulse Performance

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Generic OBD-II
P2B97

Exhaust Pressure Control Valve A Position Exceeded Learning Limit

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Generic OBD-II
P2B98

Exhaust Pressure Control Valve A Supply Low

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Generic OBD-II
P2B99

Exhaust Pressure Control Valve A Driver Current/Temperature Too High

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Generic OBD-II
P2B9A

Reductant Quality Sensor Circuit Intermittent/Erratic

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Generic OBD-II
P2B9B

Vehicle Conditions Incorrect for Particulate Matter Sensor Regeneration

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Generic OBD-II
P2B9C

Coolant Pump A Stuck/Stalled

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Generic OBD-II
P2B9D

Coolant Pump A Supply Voltage Circuit

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Generic OBD-II
P2B9E

Coolant Pump A Control Module Overtemperature

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Generic OBD-II
P2B9F

Coolant Pump B Underspeed

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Generic OBD-II
P2BA0

Coolant Pump C Underspeed

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Generic OBD-II
P2BA1

Coolant Pump D Underspeed

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Generic OBD-II
P2BA2

Engine Coolant Pump Stuck/Stalled

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Generic OBD-II
P2BA3

Starter/Generator Mechanical Performance

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Generic OBD-II
P2BA4

Catalyst Feedgas Performance

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Generic OBD-II
P2BA5

Particulate Filter Feedgas Performance

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Generic OBD-II
P2BA6

NOx Exceedance - SCR NOx Catalyst Performance

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Generic OBD-II
P2BA7

NOx Exceedence - Empty Reagent Tank

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Generic OBD-II
P2BA8

NOx Exceedence - Interruption of Reagent Dosing Activity

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Generic OBD-II
P2BA9

NOx Exceedence - Insufficient Reagent Quality

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Generic OBD-II
P2BAA

NOx Exceedence - Low Reagent Consumption

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Generic OBD-II
P2BAB

NOx Exceedence - Incorrect EGR Flow

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Generic OBD-II
P2BAC

NOx Exceedence - Deactivation of EGR

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Generic OBD-II
P2BAD

NOx Exceedence - Root Cause Unknown

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Generic OBD-II
P2BAE

NOx Exceedence - NOx control monitoring system

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Generic OBD-II
P2BAF

NOx System Driver Inducement Active

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Generic OBD-II
P2BB0

Alternative Fuel Consumption Too Low

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Generic OBD-II
P2BB1

Alternative Fuel Consumption Too High

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Generic OBD-II
P2BB2

Alternative Fuel Tank Empty

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Generic OBD-II
P2BB3

Fuel Pump Secondary Circuit Performance

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Generic OBD-II
P2BB4

Engine Coolant Temperature Sensor 4 Circuit Intermittent/Erratic

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Generic OBD-II
P2BB5

Engine Coolant Temperature Sensor 5 Circuit Intermittent/Erratic

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Generic OBD-II
P2BB6

Engine Coolant Temperature Sensor 6 Circuit

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Generic OBD-II
P2BB7

Engine Coolant Temperature Sensor 6 Circuit Range/Performance

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Generic OBD-II
P2BB8

Engine Coolant Temperature Sensor 6 Circuit Low

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Generic OBD-II
P2BB9

Engine Coolant Temperature Sensor 6 Circuit High

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Generic OBD-II
P2BBA

Engine Coolant Temperature Sensor 6 Circuit Intermittent/Erratic

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Generic OBD-II
P2BBB

Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit

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Generic OBD-II
P2BBC

Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit Low

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Generic OBD-II
P2BBD

Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit High

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Generic OBD-II
P2BBE

Turbocharger/Supercharger Bypass Valve A Position Exceeded Learning Limit

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Generic OBD-II
P2BBF

Turbocharger/Supercharger Bypass Valve A Supply Voltage Low

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Generic OBD-II
P2BC0

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

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Generic OBD-II
P2BC1

Charge Air Cooler Coolant Pump A Stuck/Stalled

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Generic OBD-II
P2BC2

Charge Air Cooler Coolant Pump A Supply Voltage Circuit

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Generic OBD-II
P2BC3

Charge Air Cooler Coolant Pump A Control Module Overtemperature

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Generic OBD-II
P2BC4

Battery Charging System Positive Contactor B Circuit

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Generic OBD-II
P2BC5

Battery Charging System Positive Contactor B Stuck Closed

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Generic OBD-II
P2BC6

Battery Charging System Positive Contactor B Stuck Open

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Generic OBD-II
P2BC7

Battery Charging System Positive Contactor B Control Circuit/Open

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Generic OBD-II
P2BC8

Battery Charging System Positive Contactor B Control Circuit Range/Performance

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Generic OBD-II
P2BC9

Battery Charging System Positive Contactor B Control Circuit Low

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Generic OBD-II
P2BCA

Battery Charging System Positive Contactor B Control Circuit High

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Generic OBD-II
P2BCB

Battery Charging System Negative Contactor B Circuit

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Generic OBD-II
P2BCC

Battery Charging System Negative Contactor B Stuck Closed

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Generic OBD-II
P2BCD

Battery Charging System Negative Contactor B Stuck Open

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Generic OBD-II
P2BCE

Battery Charging System Negative Contactor B Control Circuit/Open

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Generic OBD-II
P2BCF

Battery Charging System Negative Contactor B Control Circuit Range/Performance

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Generic OBD-II
P2BD0

Battery Charging System Negative Contactor B Control Circuit Low

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Generic OBD-II
P2BD1

Battery Charging System Negative Contactor B Control Circuit High

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Generic OBD-II
P2BD2

Exhaust Aftertreatment System A Leak

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Generic OBD-II
P2BD3

Exhaust Aftertreatment System B Leak

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Generic OBD-II
P2BD4

Motor Electronics Coolant Pump C Control Circuit/Open

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Generic OBD-II
P2BD5

Motor Electronics Coolant Pump C Control Circuit Low

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Generic OBD-II
P2BD6

Motor Electronics Coolant Pump C Control Circuit High

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Generic OBD-II
P2BD7

Motor Electronics Coolant Pump C Control Performance

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Generic OBD-II
P2BD8

Motor Electronics Coolant Temperature Sensor B Circuit

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Generic OBD-II
P2BD9

Motor Electronics Coolant Temperature Sensor B Circuit Range/Performance

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Generic OBD-II
P2BDA

Motor Electronics Coolant Temperature Sensor B Circuit Low

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Generic OBD-II
P2BDB

Motor Electronics Coolant Temperature Sensor B Circuit High

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Generic OBD-II
P2BDC

Motor Electronics Coolant Temperature Sensor C Circuit

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Generic OBD-II
P2BDD

Motor Electronics Coolant Temperature Sensor C Circuit Range/Performance

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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.