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Powertrain code references — Page 78.

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

9,891 code references in powertrain

Generic OBD-II
P25B3

Turbocharger/Supercharger Wastegate A Stuck Open

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Generic OBD-II
P25B4

Turbocharger/Supercharger Wastegate A Stuck Closed

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Generic OBD-II
P25B5

Turbocharger/Supercharger Wastegate B Stuck Open

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Generic OBD-II
P25B6

Turbocharger/Supercharger Wastegate B Stuck Closed

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Generic OBD-II
P25B7

Auxiliary Ignition Switch On/Start Position Circuit

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Generic OBD-II
P25B8

Auxiliary Ignition Switch On/Start Position Circuit Low

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Generic OBD-II
P25B9

Auxiliary Ignition Switch On/Start Position Circuit High

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Generic OBD-II
P25BA

Regeneration Control Switch Circuit/Open

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Generic OBD-II
P25BB

Regeneration Control Switch Circuit Low

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Generic OBD-II
P25BC

Regeneration Control Switch Circuit High

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Generic OBD-II
P25BD

Unmetered Fuel - Forced Engine Shutdown

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Generic OBD-II
P25BE

Alternative Fuel Disable Control Circuit/Open

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Generic OBD-II
P25BF

Alternative Fuel Disable Control Circuit High

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Generic OBD-II
P25C0

Alternative Fuel Disable Control Circuit Low

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Generic OBD-II
P25C1

Alternative Fuel Disable Signal Circuit

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Generic OBD-II
P25C2

Alternative Fuel Disable Signal Circuit High

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Generic OBD-II
P25C3

Alternative Fuel Disable Signal Circuit Low

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Generic OBD-II
P25C4

Brake Booster Temperature Sensor A Circuit

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Generic OBD-II
P25C5

Brake Booster Temperature Sensor A Circuit Range/Performance

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Generic OBD-II
P25C6

Brake Booster Temperature Sensor A Circuit Low

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Generic OBD-II
P25C7

Brake Booster Temperature Sensor A Circuit High

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Generic OBD-II
P25C8

Brake Booster Temperature Sensor A Circuit Intermittent/Erratic

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Generic OBD-II
P25C9

Brake System Control Module B Requested MIL Illumination

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Generic OBD-II
P25CA

Intake Camshaft Actuator Park Lock Control Circuit/Open Bank 1

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Generic OBD-II
P25CB

Intake Camshaft Actuator Park Lock Control Circuit Low Bank 1

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Generic OBD-II
P25CC

Intake Camshaft Actuator Park Lock Control Circuit High Bank 1

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Generic OBD-II
P25CD

Intake Camshaft Actuator Park Lock Control Circuit/Open Bank 2

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Generic OBD-II
P25CE

Intake Camshaft Actuator Park Lock Control Circuit Low Bank 2

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Generic OBD-II
P25CF

Intake Camshaft Actuator Park Lock Control Circuit High Bank 2

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Generic OBD-II
P25D0

Exhaust Camshaft Actuator Park Lock Control Circuit/Open Bank 1

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Generic OBD-II
P25D1

Exhaust Camshaft Actuator Park Lock Control Circuit Low Bank 1

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Generic OBD-II
P25D2

Exhaust Camshaft Actuator Park Lock Control Circuit High Bank 1

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Generic OBD-II
P25D3

Exhaust Camshaft Actuator Park Lock Control Circuit/Open Bank 2

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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 Disconnect Clutch Circuit Low

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Generic OBD-II
P25ED

Supercharger Disconnect Clutch 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

Coolant Pump A Control Circuit/Open

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Generic OBD-II
P2601

Coolant Pump A Control Circuit Performance/Stuck Off

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Generic OBD-II
P2602

Coolant Pump A Control Circuit Low

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Generic OBD-II
P2603

Coolant Pump A Control Circuit High

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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 System Monitoring Processor Performance

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Generic OBD-II
P2610

ECM/PCM Engine Off Timer Performance

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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

A/C Refrigerant Distribution Valve A Control Circuit Low

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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

Camshaft A Position Signal Output Circuit/Open Bank 1

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Generic OBD-II
P2615

Camshaft A Position Signal Output Circuit Low Bank 1

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Generic OBD-II
P2616

Camshaft A Position Signal Output Circuit High Bank 1

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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.