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Powertrain code references — Page 86.

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

9,891 code references in powertrain

Generic OBD-II
P28E5

Shift Motor Performance

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Generic OBD-II
P28E6

Shift Motor Overspeed

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Generic OBD-II
P28E7

Shift Motor Position Sensor Circuit/Open

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Generic OBD-II
P28E8

Shift Motor Position Sensor Circuit High

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Generic OBD-II
P28E9

Shift Motor Position Sensor Circuit Low

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Generic OBD-II
P28EA

Shift Motor Position Sensor Circuit Range/Performance

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Generic OBD-II
P28EB

Shift Motor Position Not Learned

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Generic OBD-II
P28EC

Shift Motor Position Sensor Exceeded Learning Limit

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Generic OBD-II
P28ED

Electric/Auxiliary Transmission Fluid Pump B Overspeed

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Generic OBD-II
P28EE

Electric/Auxiliary Transmission Fluid Pump B Underspeed

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Generic OBD-II
P28EF

Engine Disconnect Clutch Actuator Performance/Stuck Off

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Generic OBD-II
P28F0

Engine Disconnect Clutch Actuator Stuck On

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Generic OBD-II
P28F1

Engine Disconnect Clutch Pressure Sensor Circuit

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Generic OBD-II
P28F2

Engine Disconnect Clutch Pressure Sensor Circuit Range/Performance

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Generic OBD-II
P28F3

Engine Disconnect Clutch Pressure Sensor Circuit Low

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Generic OBD-II
P28F4

Engine Disconnect Clutch Pressure Sensor Circuit High

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Generic OBD-II
P28F5

Engine Disconnect Clutch Pressure Sensor Circuit Intermittent/Erratic

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Generic OBD-II
P28F6

Engine Disconnect Clutch Actuator Circuit Intermittent

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Generic OBD-II
P28F7

Exhaust Pressure Too High Bank 1

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Generic OBD-II
P28F8

Exhaust Pressure Too High Bank 2

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Generic OBD-II
P28F9

Exhaust Pressure Too Low Bank 1

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Generic OBD-II
P28FA

Exhaust Pressure Too Low Bank 2

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Generic OBD-II
P2A00

O2 Sensor Circuit Range/Performance Bank 1 Sensor 1

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Generic OBD-II
P2A01

O2 Sensor Circuit Range/Performance Bank 1 Sensor 2

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Generic OBD-II
P2A02

O2 Sensor Circuit Range/Performance Bank 1 Sensor 3

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Generic OBD-II
P2A03

O2 Sensor Circuit Range/Performance Bank 2 Sensor 1

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Generic OBD-II
P2A04

O2 Sensor Circuit Range/Performance Bank 2 Sensor 2

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Generic OBD-II
P2A05

O2 Sensor Circuit Range/Performance Bank 2 Sensor 3

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Generic OBD-II
P2A06

O2 Sensor Negative Voltage Bank 1 Sensor 1

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Generic OBD-II
P2A07

O2 Sensor Negative Voltage Bank 1 Sensor 2

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Generic OBD-II
P2A08

O2 Sensor Negative Voltage Bank 1 Sensor 3

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Generic OBD-II
P2A09

O2 Sensor Negative Voltage Bank 2 Sensor 1

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Generic OBD-II
P2A0A

Manifold Absolute Pressure Sensor B Circuit

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Generic OBD-II
P2A0B

Manifold Absolute Pressure Sensor B Circuit Range/Performance

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Generic OBD-II
P2A0C

Manifold Absolute Pressure Sensor B Circuit Low

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Generic OBD-II
P2A0D

Manifold Absolute Pressure Sensor B Circuit High

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Generic OBD-II
P2A0E

Manifold Absolute Pressure Sensor B Circuit Intermittent/Erratic

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Generic OBD-II
P2A0F

Fuel Supply Heater Performance

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Generic OBD-II
P2A10

O2 Sensor Negative Voltage Bank 2 Sensor 2

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Generic OBD-II
P2A11

O2 Sensor Negative Voltage Bank 2 Sensor 3

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Generic OBD-II
P2A12

Injection Pump Fuel Metering Control C (Cam/Rotor/Injector)

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Generic OBD-II
P2A13

Injection Pump Fuel Metering Control C Range/Performance (Cam/Rotor/Injector)

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Generic OBD-II
P2A14

Injection Pump Fuel Metering Control C Low (Cam/Rotor/Injector)

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Generic OBD-II
P2A15

Injection Pump Fuel Metering Control C High (Cam/Rotor/Injector)

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Generic OBD-II
P2A16

Injection Pump Fuel Metering Control D (Cam/Rotor/Injector)

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Generic OBD-II
P2A17

Injection Pump Fuel Metering Control D Range/Performance (Cam/Rotor/Injector)

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Generic OBD-II
P2A18

Injection Pump Fuel Metering Control D Low (Cam/Rotor/Injector)

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Generic OBD-II
P2A19

Injection Pump Fuel Metering Control D High (Cam/Rotor/Injector)

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Generic OBD-II
P2A1A

Injection Pump Fuel Metering Control E (Cam/Rotor/Injector)

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Generic OBD-II
P2A1B

Injection Pump Fuel Metering Control E Range/Performance (Cam/Rotor/Injector)

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Generic OBD-II
P2A1C

Injection Pump Fuel Metering Control E Low (Cam/Rotor/Injector)

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Generic OBD-II
P2A1D

Injection Pump Fuel Metering Control E High (Cam/Rotor/Injector)

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Generic OBD-II
P2A1E

Injection Pump Fuel Metering Control F (Cam/Rotor/Injector)

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Generic OBD-II
P2A1F

Injection Pump Fuel Metering Control F Range/Performance (Cam/Rotor/Injector)

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Generic OBD-II
P2A20

Injection Pump Fuel Metering Control F Low (Cam/Rotor/Injector)

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Generic OBD-II
P2A21

Injection Pump Fuel Metering Control F High (Cam/Rotor/Injector)

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Generic OBD-II
P2A22

Alternative Fuel Tank Shutoff Valve B Control Circuit/Open

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Generic OBD-II
P2A23

Alternative Fuel Tank Shutoff Valve B Control Circuit Performance/Stuck Off

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Generic OBD-II
P2A24

Alternative Fuel Tank Shutoff Valve B Control Circuit Low

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Generic OBD-II
P2A25

Alternative Fuel Tank Shutoff Valve B Control Circuit High

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Generic OBD-II
P2A26

Alternative Fuel Tank Shutoff Valve C Control Circuit/Open

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Generic OBD-II
P2A27

Alternative Fuel Tank Shutoff Valve C Control Circuit Performance/Stuck Off

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Generic OBD-II
P2A28

Alternative Fuel Tank Shutoff Valve C Control Circuit Low

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Generic OBD-II
P2A29

Alternative Fuel Tank Shutoff Valve C Control Circuit High

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Generic OBD-II
P2A2A

Alternative Fuel Tank Shutoff Valve D Control Circuit/Open

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Generic OBD-II
P2A2B

Alternative Fuel Tank Shutoff Valve D Control Circuit Performance/Stuck Off

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Generic OBD-II
P2A2C

Alternative Fuel Tank Shutoff Valve D Control Circuit Low

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Generic OBD-II
P2A2D

Alternative Fuel Tank Shutoff Valve D Control Circuit High

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Generic OBD-II
P2A2E

Alternative Fuel Tank Shutoff Valve E Control Circuit/Open

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Generic OBD-II
P2A2F

Alternative Fuel Tank Shutoff Valve E Control Circuit Performance/Stuck Off

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Generic OBD-II
P2A30

Alternative Fuel Tank Shutoff Valve E Control Circuit Low

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Generic OBD-II
P2A31

Alternative Fuel Tank Shutoff Valve E Control Circuit High

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Generic OBD-II
P2A32

AFCM Power Relay Control Circuit/Open

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Generic OBD-II
P2A33

AFCM Power Relay Control Circuit Low

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Generic OBD-II
P2A34

AFCM Power Relay Control Circuit High

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Generic OBD-II
P2A35

AFCM Power Relay Sense Circuit

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Generic OBD-II
P2A36

AFCM Power Relay Sense Circuit Low

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Generic OBD-II
P2A37

AFCM Power Relay Sense Circuit High

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Generic OBD-II
P2A38

O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 3

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Generic OBD-II
P2A39

O2 Sensor Positive Current Control Circuit Low Bank 1 Sensor 3

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Generic OBD-II
P2A3A

O2 Sensor Positive Current Control Circuit High Bank 1 Sensor 3

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Generic OBD-II
P2A3B

O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 3

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Generic OBD-II
P2A3C

O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 3

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Generic OBD-II
P2A3D

O2 Sensor Negative Current Control Circuit High Bank 1 Sensor 3

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Generic OBD-II
P2A3E

Alternative Fuel Delivery Error

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Generic OBD-II
P2A3F

Excessive Time to Enter Alternative Fuel Control

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Generic OBD-II
P2A40

Alternative Fuel System - Injector Leakage to Rail Detected

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Generic OBD-II
P2A41

Alternative Fuel Tank B Pressure Sensor Circuit

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Generic OBD-II
P2A42

Alternative Fuel Tank B Pressure Sensor Range/Performance

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Generic OBD-II
P2A43

Alternative Fuel Tank B Pressure Sensor Circuit Low

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Generic OBD-II
P2A44

Alternative Fuel Tank B Pressure Sensor Circuit High

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Generic OBD-II
P2A45

Alternative Fuel Tank B Pressure Sensor Circuit Intermittent/Erratic

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Generic OBD-II
P2A46

Alternative Fuel Tank C Pressure Sensor Circuit

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Generic OBD-II
P2A47

Alternative Fuel Tank C Pressure Sensor Range/Performance

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Generic OBD-II
P2A48

Alternative Fuel Tank C Pressure Sensor Circuit Low

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Generic OBD-II
P2A49

Alternative Fuel Tank C Pressure Sensor Circuit High

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Generic OBD-II
P2A4A

Alternative Fuel Tank C Pressure Sensor Circuit Intermittent/Erratic

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Generic OBD-II
P2A4B

Alternative Fuel Temperature Sensor Circuit

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Generic OBD-II
P2A4C

Alternative Fuel Temperature Sensor Range/Performance

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Generic OBD-II
P2A4D

Alternative Fuel Temperature Sensor Circuit Low

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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.