THE CODE DIRECTORY
Diagnostic code references — Page 100.
Browse canonical reference entries. Each definition keeps its own source and vehicle-applicability limits.
Generic OBD-II
P2CC7
Generator Inverter Power Supply B Circuit High
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Generic OBD-II
P2CC8
Coolant Pump Speed Sensor Circuit
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Generic OBD-II
P2CC9
Coolant Pump Speed Sensor Range/Performance
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Generic OBD-II
P2CCA
Coolant Pump Speed Sensor Circuit Low
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Generic OBD-II
P2CCB
Coolant Pump Speed Sensor Circuit High
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Generic OBD-II
P2CCC
Hybrid/EV Battery Pack G Deterioration
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Generic OBD-II
P2CCD
Hybrid/EV Battery Pack H Deterioration
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Generic OBD-II
P2CCE
Hybrid/EV Battery Pack I Deterioration
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Generic OBD-II
P2CCF
Hybrid/EV Battery Pack J Deterioration
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Generic OBD-II
P2CD0
Hybrid/EV Battery Pack K Deterioration
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Generic OBD-II
P2CD1
Hybrid/EV Battery Pack L Deterioration
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Generic OBD-II
P2CD2
Hybrid/EV Battery Pack M Deterioration
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Generic OBD-II
P2CD3
Hybrid/EV Battery Pack N Deterioration
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Generic OBD-II
P2CD4
A/C Refrigerant Pressure Sensor A/B Correlation
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Generic OBD-II
P2CD5
Turbocharger/Supercharger Bypass Valve C Stuck
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Generic OBD-II
P2CD6
Turbocharger/Supercharger Boost Sensor D Circuit
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Generic OBD-II
P2CD7
Turbocharger/Supercharger Boost Sensor D Circuit Range/Performance
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Generic OBD-II
P2CD8
Turbocharger/Supercharger Boost Sensor D Circuit Low
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Generic OBD-II
P2CD9
Turbocharger/Supercharger Boost Sensor D Circuit High
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Generic OBD-II
P2CDA
Alternative Fuel Tank A Vacuum Insulation Deteriorated
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Generic OBD-II
P2CDB
Cold Start Cylinder 1 Deactivation/Intake Valve Control Performance
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Generic OBD-II
P2CDC
Cold Start Cylinder 2 Deactivation/Intake Valve Control Performance
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Generic OBD-II
P2CDD
Cold Start Cylinder 3 Deactivation/Intake Valve Control Performance
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Generic OBD-II
P2CDE
Cold Start Cylinder 4 Deactivation/Intake Valve Control Performance
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Generic OBD-II
P2CDF
Cold Start Cylinder 5 Deactivation/Intake Valve Control Performance
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Generic OBD-II
P2CE0
Cold Start Cylinder 6 Deactivation/Intake Valve Control Performance
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Generic OBD-II
P2CE1
Intake Air Heater C Circuit/Open
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Generic OBD-II
P2CE2
Intake Air Heater C Circuit Range/Performance
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Generic OBD-II
P2CE3
Intake Air Heater C Circuit Low
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Generic OBD-II
P2CE4
Intake Air Heater C Circuit High
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Generic OBD-II
P2CE5
downstream filter pressure offset checked with no exhaust flow
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Generic OBD-II
P2CE6
a downstream pressure signal that does not react to transients
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Generic OBD-II
P2CE7
downstream pressure raw signal below its electrical range
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Generic OBD-II
P2CE8
high downstream pressure signal can mean an open circuit
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Generic OBD-II
P2CE9
excessive jumps between downstream pressure samples
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Generic OBD-II
P2CEA
Particulate Filter Pressure Sensor D Circuit
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Generic OBD-II
P2CEB
Particulate Filter Pressure Sensor D Circuit Range/Performance
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Generic OBD-II
P2CEC
Particulate Filter Pressure Sensor D Circuit Low
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Generic OBD-II
P2CED
Particulate Filter Pressure Sensor D Circuit High
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Generic OBD-II
P2CEE
Particulate Filter Pressure Sensor D Circuit Intermittent/Erratic
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Generic OBD-II
P2CEF
Auxiliary Thermostat A Stuck Open
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Generic OBD-II
P2CF0
Auxiliary Thermostat A Stuck Closed
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Generic OBD-II
P2CF1
Auxiliary Thermostat B Stuck Open
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Generic OBD-II
P2CF2
Auxiliary Thermostat B Stuck Closed
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Generic OBD-II
P2CF3
Hybrid/EV Battery Pack Coolant Pump A Underspeed
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Generic OBD-II
P2CF4
Hybrid/EV Battery Pack Coolant Pump B Supply Voltage Circuit
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Generic OBD-II
P2CF5
Hybrid/EV Battery Pack Coolant Pump B Stuck/Stalled
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Generic OBD-II
P2CF6
Hybrid/EV Battery Pack Coolant Pump B Overspeed /Air in System
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Generic OBD-II
P2CF7
Hybrid/EV Battery Pack Coolant Pump B Underspeed
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Generic OBD-II
P2CF8
Engine Coolant Bypass Valve D Control Circuit Driver Current/Temperature Too High
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Generic OBD-II
P2CF9
Belt Integrated Starter Generator Belt Tensioner Control Circuit/Open
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Generic OBD-II
P2CFA
Belt Integrated Starter Generator Belt Tensioner Control Circuit Low
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Generic OBD-II
P2CFB
Belt Integrated Starter Generator Belt Tensioner Control Circuit High
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Generic OBD-II
P2CFC
Explorer and Aviator warm A/C with a BCMC terminal concern
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Generic OBD-II
P2CFD
A/C Clutch Control Circuit Low
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Generic OBD-II
P2CFE
A/C Clutch Control Circuit High
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Generic OBD-II
P2CFF
A/C Clutch Control Circuit Driver Current/Temperature Too High
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Generic OBD-II
P2D00
Motor Electronics Coolant Pump A Stuck/Stalled
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Generic OBD-II
P2D01
Motor Electronics Coolant Pump A Overspeed/Air in System
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Generic OBD-II
P2D02
Motor Electronics Coolant Pump A Underspeed
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Generic OBD-II
P2D03
Motor Electronics Coolant Pump A Supply Voltage Circuit
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Generic OBD-II
P2D04
Motor Electronics Coolant Pump A Control Module Overtemperature
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Generic OBD-II
P2D05
Motor Electronics Coolant Pump B Stuck/Stalled
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Generic OBD-II
P2D06
Motor Electronics Coolant Pump B Overspeed/Air in System
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Generic OBD-II
P2D07
Motor Electronics Coolant Pump B Underspeed
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Generic OBD-II
P2D08
Motor Electronics Coolant Pump B Supply Voltage Circuit
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Generic OBD-II
P2D09
Motor Electronics Coolant Pump B Control Module Overtemperature
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Generic OBD-II
P2D0A
Motor Electronics Coolant Pump C Stuck/Stalled
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Generic OBD-II
P2D0B
Motor Electronics Coolant Pump C Overspeed/Air in System
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Generic OBD-II
P2D0C
Motor Electronics Coolant Pump C Underspeed
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Generic OBD-II
P2D0D
Motor Electronics Coolant Pump C Supply Voltage Circuit
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Generic OBD-II
P2D0E
Motor Electronics Coolant Pump C Control Module Overtemperature
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Generic OBD-II
P2D0F
Engine Pre-Ignition Above Threshold
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Generic OBD-II
P2D10
Engine Pre-Ignition Above Threshold - Forced Limited Power
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Generic OBD-II
P2D11
Exhaust Flow Control Valve A Position Not Learned
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Generic OBD-II
P2D12
Exhaust Flow Control Valve B Position Not Learned
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Generic OBD-II
P2D13
Exhaust Flow Control Valve C Control Circuit/Open
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Generic OBD-II
P2D14
Exhaust Flow Control Valve C Control Circuit Low
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Generic OBD-II
P2D15
Exhaust Flow Control Valve C Control Circuit High
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Generic OBD-II
P2D16
Exhaust Flow Control Valve C Control Performance
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Generic OBD-II
P2D17
Exhaust Flow Control Valve C Position Circuit
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Generic OBD-II
P2D18
Exhaust Flow Control Valve C Position Circuit Range/Performance
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Generic OBD-II
P2D19
Exhaust Flow Control Valve C Position Circuit Low
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Generic OBD-II
P2D1A
Exhaust Flow Control Valve C Position Circuit High
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Generic OBD-II
P2D1B
Exhaust Flow Control Valve C Position Not Learned
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Generic OBD-II
P2D1C
Cold Start EGR A/B Ratio Performance
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Generic OBD-II
P2D1D
Reductant System Leak Detected – Small Leak
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Generic OBD-II
P2D1E
Reductant System Leak Detected – Large Leak
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Generic OBD-II
P2D1F
Reductant System Flow – Restricted
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Generic OBD-II
P2D20
Reductant System Flow – Blocked
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Generic OBD-II
P2D21
Turbocharger Interstage Pressure Sensor A Circuit
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Generic OBD-II
P2D22
Turbocharger Interstage Pressure Sensor A Circuit Range/Performance
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Generic OBD-II
P2D23
Turbocharger Interstage Pressure Sensor A Circuit Low
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Generic OBD-II
P2D24
Turbocharger Interstage Pressure Sensor A Circuit High
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Generic OBD-II
P2D25
Turbocharger Interstage Pressure Sensor A Circuit Intermittent/Erratic
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Generic OBD-II
P2D26
Coolant Pump E Control Circuit Performance/Stuck Off
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Generic OBD-II
P2D27
Coolant Pump F Control Circuit Performance/Stuck Off
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Generic OBD-II
P2D28
Cold Start Propulsion Torque Performance
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Generic OBD-II
P2D29
A/C Compressor Motor Stalled
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Generic OBD-II
P2D2A
Hybrid/EV Electronics Coolant Temperature Sensor A/B Correlation
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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.