THE CODE DIRECTORY
Diagnostic code references — Page 85.
Browse canonical reference entries. Each definition keeps its own source and vehicle-applicability limits.
Generic OBD-II
P25D4
Exhaust Camshaft Actuator Park Lock Control Circuit Low Bank 2
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Generic OBD-II
P25D5
Exhaust Camshaft Actuator Park Lock Control Circuit High Bank 2
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Generic OBD-II
P25D6
Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Stop Performance
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Generic OBD-II
P25D7
Fuel Level Sensor C Circuit
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Generic OBD-II
P25D8
Fuel Level Sensor C Performance
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Generic OBD-II
P25D9
Fuel Level Sensor C Circuit Low
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Generic OBD-II
P25DA
Fuel Level Sensor C Circuit High
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Generic OBD-II
P25DB
Fuel Level Sensor C Circuit Intermittent
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Generic OBD-II
P25DC
Fuel Level Sensor C Stuck
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Generic OBD-II
P25DD
A Camshaft Position - Stuck In Locked Position Bank 1
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Generic OBD-II
P25DE
A Camshaft Position - Unable to Achieve Locked Position Bank 1
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Generic OBD-II
P25DF
A Camshaft Position Control Performance Bank 1
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Generic OBD-II
P25E0
A Camshaft Position - Stuck In Locked Position Bank 2
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Generic OBD-II
P25E1
A Camshaft Position - Unable to Achieve Locked Position Bank 2
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Generic OBD-II
P25E2
A Camshaft Position Control Performance Bank 2
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Generic OBD-II
P25E3
B Camshaft Position - Stuck In Locked Position Bank 1
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Generic OBD-II
P25E4
B Camshaft Position - Unable to Achieve Locked Position Bank 1
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Generic OBD-II
P25E5
B Camshaft Position Control Performance Bank 1
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Generic OBD-II
P25E6
B Camshaft Position - Stuck In Locked Position Bank 2
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Generic OBD-II
P25E7
B Camshaft Position - Unable to Achieve Locked Position Bank 2
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Generic OBD-II
P25E8
B Camshaft Position Control Performance Bank 2
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Generic OBD-II
P25E9
Supercharger Disconnect Clutch Stuck Open
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Generic OBD-II
P25EA
Supercharger Disconnect Clutch Stuck Closed
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Generic OBD-II
P25EB
Supercharger Disconnect Clutch Circuit Range/Performance
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Generic OBD-II
P25EC
Supercharger clutch control circuit low
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Generic OBD-II
P25ED
Supercharger clutch control circuit high
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Generic OBD-II
P25EE
Vacuum Pump Control Circuit B/Open
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Generic OBD-II
P25EF
Vacuum Pump Control Circuit B Range/Performance
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Generic OBD-II
P25F0
Vacuum Pump Control Circuit B Low
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Generic OBD-II
P25F1
Vacuum Pump Control Circuit B High
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Generic OBD-II
P25F2
Turbocharger/Supercharger Boost Sensor C Circuit
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Generic OBD-II
P25F3
Turbocharger/Supercharger Boost Sensor C Circuit Range/Performance
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Generic OBD-II
P25F4
Turbocharger/Supercharger Boost Sensor C Circuit Low
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Generic OBD-II
P25F5
Turbocharger/Supercharger Boost Sensor C Circuit High
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Generic OBD-II
P25F6
AIR System B
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Generic OBD-II
P25F7
AIR System B Incorrect Flow Detected
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Generic OBD-II
P25F8
Turbocharger/Supercharger Bypass Valve C Control Circuit
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Generic OBD-II
P25F9
Turbocharger/Supercharger Bypass Valve C Control Circuit Low
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Generic OBD-II
P25FA
Turbocharger/Supercharger Bypass Valve C Control Circuit High
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Generic OBD-II
P25FB
Turbocharger/Supercharger Bypass Valve C Control Circuit Range/Performance
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Generic OBD-II
P25FC
Turbocharger/Supercharger Bypass Valve C – Mechanical
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Generic OBD-II
P25FD
Turbocharger/Supercharger Bypass Valve C Temperature Too High
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Generic OBD-II
P25FE
Supercharger Disconnect Clutch
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Generic OBD-II
P25FF
Electrical System Voltage Stabilizer Control Module Performance
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Generic OBD-II
P2600
Locate the monitored coolant-pump function before testing an open circuit
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Generic OBD-II
P2601
A pump A performance result is not the same as an open circuit
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Generic OBD-II
P2602
Low pump-control evidence must be separated from low supply voltage
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Generic OBD-II
P2603
Read a high coolant-pump control fault as driver evidence
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Generic OBD-II
P2604
Intake Air Heater A Circuit Range/Performance
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Generic OBD-II
P2605
Intake Air Heater B Circuit/Open
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Generic OBD-II
P2606
Intake Air Heater B Circuit Range/Performance
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Generic OBD-II
P2607
Intake Air Heater B Circuit Low
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Generic OBD-II
P2608
Intake Air Heater B Circuit High
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Generic OBD-II
P2609
Intake Air Heater System Performance
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Generic OBD-II
P260A
PTO Control Circuit/Open
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Generic OBD-II
P260B
PTO Control Circuit Low
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Generic OBD-II
P260C
PTO Control Circuit High
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Generic OBD-II
P260D
PTO Engaged Lamp Control Circuit
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Generic OBD-II
P260E
Particulate Filter Regeneration Lamp Control Circuit
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Generic OBD-II
P260F
EVAP processor performance is separate from a measured tank leak
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Generic OBD-II
P2610
An unreliable off timer can distort a cold-soak diagnosis
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Generic OBD-II
P2611
A/C Refrigerant Distribution Valve A Control Circuit/Open
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Generic OBD-II
P2612
N280 compressor-valve wiring can explain an inactive air conditioner
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Generic OBD-II
P2613
A/C Refrigerant Distribution Valve A Control Circuit High
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Generic OBD-II
P2614
Ford 6.0L FICM loses camshaft-position synchronization
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Generic OBD-II
P2615
Cam-position output circuit remains low when high is commanded
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Generic OBD-II
P2616
Cam-position output driver reports a short toward supply
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Generic OBD-II
P2617
Ford 6.0L FICM crankshaft-position input or synchronization fault
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Generic OBD-II
P2618
Replicated crank output low is different from a crank-sensor input fault
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Generic OBD-II
P2619
Why a crankshaft output-high fault does not prove lost timing
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Generic OBD-II
P261A
Pump B open-circuit monitoring has a specific cooling-loop role
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Generic OBD-II
P261B
Separate pump B performance from a definite stalled rotor
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Generic OBD-II
P261C
A low pump B control circuit is not a measured flow shortage
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Generic OBD-II
P261D
Interpret pump B high-control evidence before choosing a repair
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Generic OBD-II
P261E
Coolant Pump B Control Circuit Stuck On
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Generic OBD-II
P261F
Coolant pump reports substantial speed when it should be off
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Generic OBD-II
P2620
Throttle Position Output Circuit/Open
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Generic OBD-II
P2621
Throttle Position Output Circuit Low
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Generic OBD-II
P2622
Throttle Position Output Circuit High
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Generic OBD-II
P2623
Ford 6.0L injection-pressure regulator driver circuit fault
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Generic OBD-II
P2624
Injector Control Pressure Regulator Circuit Low
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Generic OBD-II
P2625
Injector Control Pressure Regulator Circuit High
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Generic OBD-II
P2626
Front oxygen-sensor pump-current trim circuit fails its interface test
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Generic OBD-II
P2627
NOx sensor 1 oxygen signal below its accepted floor
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Generic OBD-II
P2628
NOx sensor 1 oxygen signal above its accepted ceiling
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Generic OBD-II
P2629
The upstream bank-two oxygen sensor’s compensation path is open
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Generic OBD-II
P262A
Fuel Injector - Pilot Injection Not Learned
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Generic OBD-II
P262B
The control module’s power-off timer fails increment or agreement checks
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Generic OBD-II
P262C
Sensor Reference Voltage G Circuit/Open
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Generic OBD-II
P262D
Sensor Reference Voltage G Circuit Low
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Generic OBD-II
P262E
Sensor Reference Voltage G Circuit High
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Generic OBD-II
P262F
Sensor Reference Voltage G Circuit Range/Perfomance
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Generic OBD-II
P2630
O2 Sensor Pumping Current Trim Circuit Low Bank 2 Sensor 1
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Generic OBD-II
P2631
O2 Sensor Pumping Current Trim Circuit High Bank 2 Sensor 1
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Generic OBD-II
P2632
Tank-transfer pump open-load reporting depends on command state
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Generic OBD-II
P2633
Tank-transfer pump circuit-low evidence comes from the tank module
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Generic OBD-II
P2634
A transfer-pump circuit-high code is not a pressure-high code
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Generic OBD-II
P2635
Fuel-pump performance is judged by filtered pressure error
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Generic OBD-II
P2636
Transfer-pump performance is inferred from two fuel levels
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Generic OBD-II
P2637
the transmission received an invalid engine-torque message
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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.