P CODE FAMILY
Powertrain code references — Page 92.
Engine, transmission and powertrain diagnostic references. Exact vehicle and module context still matters.
Generic OBD-II
P2C42
Fan 4 Performance/Stuck Off
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Generic OBD-II
P2C43
Battery Isolation/Voltage Stabilization Control Circuit
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Generic OBD-II
P2C44
Battery Isolation/Voltage Stabilization Control Circuit Performance
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Generic OBD-II
P2C45
Battery Isolation/Voltage Stabilization Control Circuit Low
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Generic OBD-II
P2C46
Battery Isolation/Voltage Stabilization Control Circuit High
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Generic OBD-II
P2C47
Battery Isolation/Voltage Stabilization Control Circuit Intermittent
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Generic OBD-II
P2C48
Coolant Pump C Control Circuit Performance/Stuck Off
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Generic OBD-II
P2C49
Coolant Pump D Control Circuit Performance/Stuck Off
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Generic OBD-II
P2C4A
Clutch Actuator Position Sensor Circuit
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Generic OBD-II
P2C4B
Clutch Actuator Position Sensor Circuit Range/Performance
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Generic OBD-II
P2C4C
Clutch Actuator Position Sensor Circuit Low
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Generic OBD-II
P2C4D
Clutch Actuator Position Sensor Circuit High
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Generic OBD-II
P2C4E
Clutch Actuator Position Sensor Circuit Intermittent/Erratic
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Generic OBD-II
P2C4F
Clutch Actuator Performance
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Generic OBD-II
P2C50
Clutch Pedal Position Sensor A/Clutch Actuator Position Sensor Correlation
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Generic OBD-II
P2C51
Fuel Level Sensor A/B Correlation
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Generic OBD-II
P2C52
Cylinder 1 Fuel Injector B Offset Learning At Min Limit
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Generic OBD-II
P2C53
Cylinder 1 Fuel Injector B Offset Learning At Max Limit
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Generic OBD-II
P2C54
Cylinder 2 Fuel Injector B Offset Learning At Min Limit
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Generic OBD-II
P2C55
Cylinder 2 Fuel Injector B Offset Learning At Max Limit
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Generic OBD-II
P2C56
Cylinder 3 Fuel Injector B Offset Learning At Min Limit
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Generic OBD-II
P2C57
Cylinder 3 Fuel Injector B Offset Learning At Max Limit
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Generic OBD-II
P2C58
Cylinder 4 Fuel Injector B Offset Learning At Min Limit
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Generic OBD-II
P2C59
Cylinder 4 Fuel Injector B Offset Learning At Max Limit
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Generic OBD-II
P2C5A
Cylinder 5 Fuel Injector B Offset Learning At Min Limit
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Generic OBD-II
P2C5B
Cylinder 5 Fuel Injector B Offset Learning At Max Limit
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Generic OBD-II
P2C5C
Cylinder 6 Fuel Injector B Offset Learning At Min Limit
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Generic OBD-II
P2C5D
Cylinder 6 Fuel Injector B Offset Learning At Max Limit
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Generic OBD-II
P2C5E
Cylinder 7 Fuel Injector B Offset Learning At Min Limit
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Generic OBD-II
P2C5F
Cylinder 7 Fuel Injector B Offset Learning At Max Limit
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Generic OBD-II
P2C60
Cylinder 8 Fuel Injector B Offset Learning At Min Limit
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Generic OBD-II
P2C61
Cylinder 8 Fuel Injector B Offset Learning At Max Limit
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Generic OBD-II
P2C62
O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 3
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Generic OBD-II
P2C63
O2 Sensor Pumping Current Trim Circuit Low Bank 1 Sensor 3
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Generic OBD-II
P2C64
O2 Sensor Pumping Current Trim Circuit High Bank 1 Sensor 3
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Generic OBD-II
P2C65
O2 Sensor Out of Range During Deceleration Bank 1 Sensor 3
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Generic OBD-II
P2C66
Hybrid/EV Electronics Coolant Pump A Underspeed
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Generic OBD-II
P2C67
Hybrid/EV Electronics Coolant Pump A Overspeed
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Generic OBD-II
P2C68
Hybrid/EV Electronics Coolant Pump A Stuck/Stalled
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Generic OBD-II
P2C69
Drive Motor “A” Phase X Current
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Generic OBD-II
P2C6A
Drive Motor “A” Phase X Current Low
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Generic OBD-II
P2C6B
Drive Motor “A” Phase X Current High
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Generic OBD-II
P2C6C
Drive Motor “A” Phase Y Current
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Generic OBD-II
P2C6D
Drive Motor “A” Phase Y Current Low
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Generic OBD-II
P2C6E
Drive Motor “A” Phase Y Current High
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Generic OBD-II
P2C6F
Drive Motor “A” Phase Z Current
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Generic OBD-II
P2C70
Drive Motor “A” Phase Z Current Low
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Generic OBD-II
P2C71
Drive Motor “A” Phase Z Current High
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Generic OBD-II
P2C72
Hybrid/EV Electronics Cooling System Performance
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Generic OBD-II
P2C73
Active Grille Air Shutter C Stuck On
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Generic OBD-II
P2C74
Active Grille Air Shutter C Control Circuit Range/Performance
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Generic OBD-II
P2C75
Active Grille Air Shutter Module C Over Temperature
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Generic OBD-II
P2C76
Active Grille Air Shutter D Stuck On
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Generic OBD-II
P2C77
Active Grille Air Shutter D Control Circuit Range/Performance
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Generic OBD-II
P2C78
Active Grille Air Shutter Module D Over Temperature
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Generic OBD-II
P2C79
NOx Adsorber - Sulfur Limit Exceeded
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Generic OBD-II
P2C7A
SCR NOx Catalyst Efficiency Below Threshold Bank 1 Catalyst 2
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Generic OBD-II
P2C7B
Turbocharger Turbine Inlet Valve Control Performance
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Generic OBD-II
P2C7C
Turbocharger Turbine Inlet Valve Supply Circuit Low
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Generic OBD-II
P2C7D
Turbocharger Turbine Inlet Valve Motor Driver High Current
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Generic OBD-II
P2C7E
Turbocharger Turbine Inlet Valve Motor Driver Overtemperature
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Generic OBD-II
P2C7F
Turbocharger Turbine Inlet Valve Position Sensor Exceeded Learning Limit
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Generic OBD-II
P2C80
AIR System Pump Overspeed Bank 1
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Generic OBD-II
P2C81
AIR System Pump Overtemperature Bank 1
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Generic OBD-II
P2C82
AIR System Pump Supply Voltage Circuit Bank 1
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Generic OBD-II
P2C83
Cold Start Shift Time Too Short
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Generic OBD-II
P2C84
Cold Start Shift Time Too Long
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Generic OBD-II
P2C85
Hybrid/EV Battery Voltage External Isolation Fault
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Generic OBD-II
P2C86
Hybrid/EV Battery Voltage Internal Isolation Warning
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Generic OBD-II
P2C87
Hybrid/EV Battery Voltage External Isolation Warning
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Generic OBD-II
P2C88
Hybrid/EV Battery Voltage System Isolation Warning
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Generic OBD-II
P2C89
Hybrid/EV Battery System Precharge Current Too High
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Generic OBD-II
P2C8A
Hybrid/EV Battery Interface Control Module A Performance
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Generic OBD-II
P2C8B
Hybrid/EV Battery Interface Control Module B Performance
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Generic OBD-II
P2C8C
DC/DC Converter Temperature Sensor D Circuit
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Generic OBD-II
P2C8D
DC/DC Converter Temperature Sensor D Circuit Range/Performance
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Generic OBD-II
P2C8E
DC/DC Converter Temperature Sensor D Circuit Low
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Generic OBD-II
P2C8F
DC/DC Converter Temperature Sensor D Circuit High
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Generic OBD-II
P2C90
Crankcase Ventilation System - Hose A Disconnected
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Generic OBD-II
P2C91
Crankcase Ventilation System - Hose B Disconnected
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Generic OBD-II
P2C92
Hybrid/EV Battery Contactor Control Supply Circuit/Open
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Generic OBD-II
P2C93
Hybrid/EV Battery Contactor Control Supply Circuit Range/Performance
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Generic OBD-II
P2C94
Hybrid/EV Battery Contactor Control Supply Circuit Low
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Generic OBD-II
P2C95
Hybrid/EV Battery Contactor Control Supply Circuit High
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Generic OBD-II
P2C96
Hybrid/EV Battery Disable Circuit/Open
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Generic OBD-II
P2C97
Hybrid/EV Battery Disable Circuit Low
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Generic OBD-II
P2C98
Hybrid/EV Battery Disable Circuit High
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Generic OBD-II
P2C99
Throttle Actuator A Control Exceeded Learning Limit
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Generic OBD-II
P2C9A
Throttle Actuator B Control Exceeded Learning Limit
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Generic OBD-II
P2C9B
Cold Start Turbocharger/Supercharger Wastegate Actuator A Range/Performance
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Generic OBD-II
P2C9C
Cold Start Turbocharger/Supercharger Wastegate Actuator B Range/Performance
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Generic OBD-II
P2C9D
Fuel Pressure Regulator C Exceeded Control Limits - Pressure Too High
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Generic OBD-II
P2C9E
Fuel Pressure Regulator C Exceeded Control Limits - Pressure Too Low
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Generic OBD-II
P2C9F
Fuel Pressure Regulator D Exceeded Control Limits - Pressure Too High
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Generic OBD-II
P2CA0
Fuel Pressure Regulator D Exceeded Control Limits - Pressure Too Low
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Generic OBD-II
P2CA1
Charge Air Cooler Coolant Pump Sense Circuit High
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Generic OBD-II
P2CA2
Charge Air Cooler Coolant Pump Sense Circuit Low
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Generic OBD-II
P2CA3
Charge Air Cooler Coolant Pump Sense Circuit Performance
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Generic OBD-II
P2CA4
Particulate Filter Pressure Sensor Signals Swapped A/B
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Generic OBD-II
P2CA5
DC/DC Converter Temperature Sensor E Circuit
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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.