MANUFACTURER REFERENCE
Generic OBD-II code references — Page 73.
Read the source definition and confirm the exact vehicle, reporting module and diagnostic procedure.
Generic OBD-II
P2C24
Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Circuit Low
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Generic OBD-II
P2C25
Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Circuit High
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Generic OBD-II
P2C26
Fuel Injector Group B Supply Sense Circuit
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Generic OBD-II
P2C27
Fuel Injector Group B Supply Sense Circuit Low
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Generic OBD-II
P2C28
Fuel Injector Group B Supply Sense Circuit High
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Generic OBD-II
P2C29
Detecting a stuck bypass valve from pressure pulsations
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Generic OBD-II
P2C2A
Turbocharger/Supercharger Bypass Valve B Position Sensor Circuit/Open
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Generic OBD-II
P2C2B
Turbocharger/Supercharger Bypass Valve B Position Sensor Circuit Low
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Generic OBD-II
P2C2C
Turbocharger/Supercharger Bypass Valve B Position Sensor Circuit High
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Generic OBD-II
P2C2D
Turbocharger/Supercharger Bypass Valve B Position Exceeded Learning Limit
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Generic OBD-II
P2C2E
Turbocharger/Supercharger Bypass Valve B Supply Voltage Low
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Generic OBD-II
P2C2F
Turbocharger/Supercharger Bypass Valve B Driver Current/Temperature Too High
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Generic OBD-II
P2C30
Ignition Coil Primary Circuit Fuse A
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Generic OBD-II
P2C31
Ignition Coil Primary Circuit Fuse B
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Generic OBD-II
P2C32
Crankcase Pressure Sensor B Circuit
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Generic OBD-II
P2C33
Crankcase Pressure Sensor B Circuit Range/Performance
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Generic OBD-II
P2C34
Crankcase Pressure Sensor B Circuit Low
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Generic OBD-II
P2C35
Crankcase Pressure Sensor B Circuit High
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Generic OBD-II
P2C36
Crankcase Pressure Sensor B Circuit Intermittent/Erratic
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Generic OBD-II
P2C37
Cold Start Engine Coolant Pump Performance
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Generic OBD-II
P2C38
Cylinder Head Temperature Sensor B Circuit
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Generic OBD-II
P2C39
F-150 2.7L temperature warnings need model-year-specific diagnosis
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Generic OBD-II
P2C3A
Cylinder Head Temperature Sensor B Circuit Low
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Generic OBD-II
P2C3B
Cylinder Head Temperature Sensor B Circuit High
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Generic OBD-II
P2C3C
Cylinder Head Temperature Sensor B Circuit Intermittent/Erratic
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Generic OBD-II
P2C3D
Cylinder Head Temperature Sensor A/B Correlation
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Generic OBD-II
P2C3E
Fan 4 Control Circuit
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Generic OBD-II
P2C3F
Fan 4 Control Circuit Low
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Generic OBD-II
P2C40
Fan 4 Control Circuit High
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Generic OBD-II
P2C41
Fan 3 Performance/Stuck Off
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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
PowerBoost ground integrity before auxiliary battery isolator replacement
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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 performance is inferred from phase-current behavior
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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
Do not borrow throttle-voltage limits for a clutch-actuation sensor
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Generic OBD-II
P2C4D
High clutch-actuation feedback needs its own circuit specification
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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
A valid clutch-actuation signal can still fail rationality
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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
third oxygen channel below its physical-range limit
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Generic OBD-II
P2C64
third oxygen channel above its physical-range limit
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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
underfloor SCR efficiency evaluated with filtered evidence
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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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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.