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Powertrain code references — Page 75.

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

9,891 code references in powertrain

Generic OBD-II
P2487

Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 5

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Generic OBD-II
P2488

Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 5

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Generic OBD-II
P2489

Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 2 Sensor 5

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Generic OBD-II
P248A

Reductant Heater A Sense Circuit Low

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Generic OBD-II
P248B

Reductant Heater A Sense Circuit High

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Generic OBD-II
P248C

Reductant Heater B Sense Circuit Low

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Generic OBD-II
P248D

Reductant Heater B Sense Circuit High

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Generic OBD-II
P248E

EGR Cooler Bypass Control Circuit/Open Bank 2

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Generic OBD-II
P248F

EGR Cooler Bypass Control Circuit Range/Performance Bank 2

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Generic OBD-II
P2490

EGR Cooler Bypass Control Circuit Low Bank 2

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Generic OBD-II
P2491

EGR Cooler Bypass Control Circuit High Bank 2

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Generic OBD-II
P2492

EGR Cooler Bypass Position Sensor Circuit Bank 1

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Generic OBD-II
P2493

EGR Cooler Bypass Position Sensor Range/Performance Bank 1

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Generic OBD-II
P2494

EGR Cooler Bypass Position Sensor Circuit Low Bank 1

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Generic OBD-II
P2495

EGR Cooler Bypass Position Sensor Circuit High Bank 1

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Generic OBD-II
P2496

EGR Cooler Bypass Position Sensor Circuit Intermittent/Erratic Bank 1

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Generic OBD-II
P2497

EGR Cooler Bypass Position Sensor Circuit Bank 2

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Generic OBD-II
P2498

EGR Cooler Bypass Position Sensor Range/Performance Bank 2

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Generic OBD-II
P2499

EGR Cooler Bypass Position Sensor Circuit Low Bank 2

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Generic OBD-II
P249A

EGR Cooler Bypass Position Sensor Circuit High Bank 2

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Generic OBD-II
P249B

EGR Cooler Bypass Position Sensor Circuit Intermittent/Erratic Bank 2

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Generic OBD-II
P249C

Excessive Time To Enter Closed Loop Reductant Injection Control

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Generic OBD-II
P249D

Closed Loop Reductant Injection Control At Limit - Flow Too Low

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Generic OBD-II
P249E

Closed Loop Reductant Injection Control At Limit - Flow Too High

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Generic OBD-II
P249F

Excessive Time To Enter Closed Loop Particulate Filter Regeneration Control

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Generic OBD-II
P24A0

Closed Loop Particulate Filter Regeneration Control At Limit - Temperature Too Low

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Generic OBD-II
P24A1

Closed Loop Particulate Filter Regeneration Control At Limit - Temperature Too High

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Generic OBD-II
P24A2

Particulate Filter Regeneration Incomplete Bank 1

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Generic OBD-II
P24A3

Particulate Filter Restriction - Soot Accumulation Bank 2

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Generic OBD-II
P24A4

Particulate Filter Restriction - Soot Accumulation Too High Bank 1

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Generic OBD-II
P24A5

EGR Cooler Bypass Control Stuck/Open Bank 1

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Generic OBD-II
P24A6

EGR Cooler Bypass Control Stuck/Open Bank 2

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Generic OBD-II
P24A7

EGR Cooler Coolant Pump Control Circuit/Open

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Generic OBD-II
P24A8

EGR Cooler Coolant Pump Performance/Stuck Off

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Generic OBD-II
P24A9

EGR Cooler Coolant Pump Control Circuit Low

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Generic OBD-II
P24AA

EGR Cooler Coolant Pump Control Circuit High

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Generic OBD-II
P24AB

EGR Cooler Coolant Pump Stuck On

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Generic OBD-II
P24AC

EGR Cooler Coolant Pump Feedback Circuit Low

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Generic OBD-II
P24AD

EGR Cooler Coolant Pump Feedback Circuit High

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Generic OBD-II
P24AE

Particulate Matter Sensor Circuit

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Generic OBD-II
P24AF

Particulate Matter Sensor Circuit Range/Performance

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Generic OBD-II
P24B0

Particulate Matter Sensor Circuit Low

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Generic OBD-II
P24B1

Particulate Matter Sensor Circuit High

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Generic OBD-II
P24B2

Particulate Matter Sensor Circuit Intermittent

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Generic OBD-II
P24B3

Particulate Matter Sensor Heater Control Circuit/Open

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Generic OBD-II
P24B4

Particulate Matter Sensor Heater Control Circuit Range/Performance

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Generic OBD-II
P24B5

Particulate Matter Sensor Heater Control Circuit Low

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Generic OBD-II
P24B6

Particulate Matter Sensor Heater Control Circuit High

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Generic OBD-II
P24B7

Particulate Matter Sensor Heater Resistance

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Generic OBD-II
P24B8

EVAP System Leak Detection Pump Pressure Sensor Circuit

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Generic OBD-II
P24B9

EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance

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Generic OBD-II
P24BA

EVAP System Leak Detection Pump Pressure Sensor Circuit Low

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Generic OBD-II
P24BB

EVAP System Leak Detection Pump Pressure Sensor Circuit High

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Generic OBD-II
P24BC

EVAP System Leak Detection Pump Pressure Sensor Circuit Intermittent

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Generic OBD-II
P24BD

EVAP System Leak Detection Pump Switching Valve Control Circuit/Open

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Generic OBD-II
P24BE

EVAP System Leak Detection Pump Switching Valve Control Circuit Low

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Generic OBD-II
P24BF

EVAP System Leak Detection Pump Switching Valve Control Circuit High

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Generic OBD-II
P24C0

EVAP System Leak Detection Pump Switching Valve Stuck On

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Generic OBD-II
P24C1

EVAP System Leak Detection Pump Switching Valve Performance/Stuck Off

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Generic OBD-II
P24C2

Exhaust Gas Temperature Measurement System - Multiple Sensor Correlation Bank 1

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Generic OBD-II
P24C3

Exhaust Gas Temperature Measurement System - Multiple Sensor Correlation Bank 2

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Generic OBD-II
P24C4

EGR Cooler Bypass Position Sensor Exceeded Learning Limit Bank 1

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Generic OBD-II
P24C5

EGR Cooler Bypass Position Sensor Exceeded Learning Limit Bank 2

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Generic OBD-II
P24C6

Particulate Matter Sensor Temperature Circuit

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Generic OBD-II
P24C7

Particulate Matter Sensor Temperature Circuit Range/performance

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Generic OBD-II
P24C8

Particulate Matter Sensor Temperature Circuit Low

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Generic OBD-II
P24C9

Particulate Matter Sensor Temperature Circuit High

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Generic OBD-II
P24CA

Particulate Matter Sensor Temperature Circuit Intermittent

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Generic OBD-II
P24CB

Reductant Tank Cap Switch Circuit

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Generic OBD-II
P24CC

Reductant Tank Cap Switch Circuit Range/Performance

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Generic OBD-II
P24CD

Reductant Tank Cap Switch Circuit Low

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Generic OBD-II
P24CE

Reductant Tank Cap Switch Circuit High

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Generic OBD-II
P24CF

Reductant Tank Cap Switch Circuit Intermittent/Erratic

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Generic OBD-II
P24D0

Particulate Matter Sensor Supply Voltage Circuit Low

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Generic OBD-II
P24D1

Particulate Matter Sensor Regeneration Incomplete

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Generic OBD-II
P24D2

Reductant Heater A Sense Circuit

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Generic OBD-II
P24D3

Reductant Heater B Sense Circuit

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Generic OBD-II
P24D4

EGR Cooler Coolant Pump Feedback Circuit

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Generic OBD-II
P24D5

EVAP System Pressure Sensor/Switch B Circuit

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Generic OBD-II
P24D6

EVAP System Pressure Sensor/Switch B Circuit Range/Performance

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Generic OBD-II
P24D7

EVAP System Pressure Sensor/Switch B Circuit Low

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Generic OBD-II
P24D8

EVAP System Pressure Sensor/Switch B Circuit High

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Generic OBD-II
P24D9

EVAP System Pressure Sensor/Switch B Circuit Intermittent

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Generic OBD-II
P24DA

Particulate Matter Sensor Exhaust Sample Error Bank 1

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Generic OBD-II
P24DB

Reductant Purge Control Valve B Circuit /Open

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Generic OBD-II
P24DC

Reductant Purge Control Valve B Performance

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Generic OBD-II
P24DD

Reductant Purge Control Valve B Circuit Low

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Generic OBD-II
P24DE

Reductant Purge Control Valve B Circuit High

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Generic OBD-II
P24DF

Reductant Purge Control Valve B Stuck Open

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Generic OBD-II
P24E0

Reductant Purge Control Valve B Stuck Closed

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Generic OBD-II
P24E1

NH3 Sensor Circuit

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Generic OBD-II
P24E2

NH3 Sensor Circuit Range/Performance

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Generic OBD-II
P24E3

NH3 Sensor Circuit Low

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Generic OBD-II
P24E4

NH3 Sensor Circuit High

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Generic OBD-II
P24E5

NH3 Sensor Circuit Intermittent/Erratic

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Generic OBD-II
P24E6

NH3 Sensor Heater Circuit/Open

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Generic OBD-II
P24E7

NH3 Sensor Heater Circuit Low

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Generic OBD-II
P24E8

NH3 Sensor Heater Circuit High

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Generic OBD-II
P24E9

NH3 Sensor Heater Circuit Performance

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Generic OBD-II
P24EA

NH3 Sensor Supply Voltage Circuit

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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.