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Powertrain code references — Page 38.

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

9,891 code references in powertrain

Generic OBD-II
P0EFB

Battery Charger A Input Voltage Sensor C Circuit

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Generic OBD-II
P0EFC

Battery Charger A Input Voltage Sensor C Circuit Range/Performance

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Generic OBD-II
P0EFD

Battery Charger A Input Voltage Sensor C Circuit Low

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Generic OBD-II
P0EFE

Battery Charger A Input Voltage Sensor C Circuit High

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Ford / Lincoln +1
P1000

OBD System Readiness Test Not Complete

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Jaguar
P1000

OBD Systems Readiness Test Not Complete

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Mazda
P1000

OBD II Monitor Testing Not Completed

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Ford / Lincoln +1
P1001

KOER Test Cannot Be Completed

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Mazda
P1001

Unable to Achieve Self-Test Function Or SCP Error

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Buick / Cadillac +6
P1031

HO2S Heater Current Monitor Control Circuit Sensors 1

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Buick / Cadillac +6
P1032

HO2S Heater Warm Up Control Circuit Sensors 1

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Ford / Lincoln +1
P1039

Vehicle Speed Signal Missing or Improper

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Ford / Lincoln +1
P1051

Brake Switch Signal Missing or Improper

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BMW
P1083

Fuel Control Mixture Lean Bank 1 Sensor 1

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BMW
P1084

Fuel Control Mixture Rich Bank 1 Sensor 1

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BMW
P1085

Fuel Control Mixture Lean Bank 2 Sensor 1

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BMW
P1086

Fuel Control Mixture Rich Bank 2 Sensor 1

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Subaru
P1086

Tumble Generator Valve #2 LH Position Sensor Circuit Low Input

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BMW
P1087

O2 Sensor Circuit Slow Response in Lean Control Range Bank 1 Sensor 1

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Subaru
P1087

Tumble Generator Valve #2 LH Position Sensor Circuit High Input

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BMW
P1088

O2 Sensor Circuit Slow Response in Rich Control Range Bank 1 Sensor 1

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Subaru
P1088

Tumble Generator Valve #1 RH Position Sensor Circuit Low Input

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BMW
P1089

O2 Sensor Circuit Slow Response in Lean Control Range Bank 1 Sensor 2

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Subaru
P1089

Tumble Generator Valve #1 RH Position Sensor Circuit High Input

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BMW
P1090

Pre-Catalyst Fuel Trim Too Lean Bank 1

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Subaru
P1090

Tumble Generator Valve #1 RH Malfunction Stuck Open

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BMW
P1091

Pre-Catalyst Fuel Trim Too Rich Bank 1

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Subaru
P1091

Tumble Generator Valve #1 RH Malfunction Stuck Close

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BMW
P1092

Pre-Catalyst Fuel Trim Too Lean Bank 2

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Subaru
P1092

Tumble Generator Valve #2 LH Malfunction Stuck Open

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BMW
P1093

Pre-Catalyst Fuel Trim Too Rich Bank 2

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Subaru
P1093

Tumble Generator Valve #2 LH Malfunction Stuck Close

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BMW
P1094

O2 Sensor Circuit Slow Response in Rich Control Range Bank 2 Sensor 1

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Subaru
P1094

Tumble Generator Valve Circuit #1 Open Circuit

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BMW
P1095

O2 Sensor Circuit Slow Switching From Lean to Rich Bank 1 Sensor 1

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Subaru
P1095

Tumble Generator Valve Circuit #1 Over Current

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BMW
P1096

O2 Sensor Circuit Slow Switching From Lean to Rich Bank 2 Sensor 1

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Subaru
P1096

Tumble Generator Valve Circuit #2 Open Circuit

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BMW
P1097

O2 Sensor Circuit Slow Response After Coast Down Fuel Cut-off Bank 1 Sensor 2

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Subaru
P1097

Tumble Generator Valve Circuit #2 Over Current

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BMW
P1098

O2 Sensor Circuit Slow Response After Coast Down Fuel Cutoff Bank 2 Sensor 2

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Ford / Lincoln +1
P1100

Mass Air Flow Sensor Intermittent

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Lexus
P1100

BARO Sensor Circuit Malfunction

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Mazda
P1100

Mass Air Flow Sensor Circuit Intermittent

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Mitsubishi
P1100

Induction Control Motor Position Sensor Fault

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Subaru
P1100

Starter Switch Circuit Malfunction

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Toyota
P1100

BARO Sensor Circuit

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Ford / Lincoln +1
P1101

Mass Air Flow Sensor Out of Self-Test Range

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Mazda
P1101

Mass Air Flow Sensor Circuit Out Of Self-Test Range

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Mitsubishi
P1101

Traction Control Vacuum Solenoid Circuit Fault

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Subaru
P1101

Neutral Position Switch Circuit Malfunction M/T

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Volkswagen
P1101

Oxygen Sensor Circuit Bank 1 Sensor 1 Voltage Too Low/Air Leak

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Kia
P1102

HO2S11 Heater Circuit High Voltage

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Mazda
P1102

Mass Air Flow Sensor Signal Inconsistent With Throttle Position Sensor

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Mitsubishi
P1102

Traction Control Ventilation Solenoid Circuit Fault

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Subaru
P1102

Pressure Sources Solenoid Valve Circuit Malfunction

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Volkswagen
P1102

Oxygen Sensor Heating Circuit Bank 1 Sensor 1 Voltage Too Low/Air Leak

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Mazda
P1103

Mass Air Flow Sensor Signal Inconsistent With Engine Speed

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Mitsubishi
P1103

Turbocharger Wastegate Actuator

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Subaru
P1103

Pressure Sources Switching Solenoid Valve Circuit

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Volkswagen
P1103

Oxygen Sensor Heating Circuit Bank 1 Sensor 1 Short To B+

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Jaguar
P1104

Mass Air Flow Sensor Circuit Ground

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Mitsubishi
P1104

Turbocharger Wastegate Solenoid

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Subaru
P1104

Engine Torque Control Signal Circuit Malfunction

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Volkswagen
P1104

Oxygen Sensor Bank 1 Sensor 2 Voltage Too Low/Air Leak

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Buick / Cadillac +5
P1105

Secondary Vacuum Sensor Circuit

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Ford / Lincoln +1
P1105

Dual Alternator Upper Fault

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Dodge / Jeep +2
P1105

Open Or Shorted Condition Detected In The Baro Read Solenoid Control Circuit

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Kia
P1105

HO2S12 Heater Circuit High Voltage

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Mercedes-Benz
P1105

Atmospheric Pressure Sensor In Control Module

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Mitsubishi
P1105

Fuel Pressure Solenoid

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Nissan
P1105

MAP BARO Pressure Switch Solenoid Valve

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Volkswagen
P1105

Oxygen Sensor Heating Circuit Bank 1 Sensor 2 Short To B+

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Buick / Cadillac +5
P1106

MAP Sensor Circuit Intermittent High Voltage

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Acura / Honda
P1106

BARO Circuit Range Performance Malfunction

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Subaru
P1106

Engine Torque Control Signal 2 Circuit Malfunction

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Volkswagen
P1106

Oxygen Sensor Circuit Bank 2 Sensor 1 Voltage Too Low/Air Leak

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Buick / Cadillac +5
P1107

MAP Sensor Circuit Intermittent Low Voltage

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Acura / Honda
P1107

BARO Circuit Low Input

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Subaru
P1107

AIR System Diagnosis Solenoid Circuit Fault

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Volkswagen
P1107

Oxygen Sensor Heating Circuit Bank 2 Sensor 1 Short To B+

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Buick / Cadillac +5
P1108

BARO To MAP Sensor Circuit Comparison Too High

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Ford / Lincoln +1
P1108

Dual Alternator Battery Lamp Circuit Malfunction

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Acura / Honda
P1108

BARO Circuit High Input

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Volkswagen
P1108

Oxygen Sensor Heating Circuit Bank 2 Sensor 1 Output Too Low

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Buick / Cadillac +5
P1109

Secondary Port Throttle System

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Ford / Lincoln +1
P1109

IAT - B Sensor Intermittent

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Volkswagen
P1109

Oxygen Sensor Circuit Bank 2 Sensor 2 Voltage Too Low/Air Leak

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Mazda
P1110

Intake Air Temperature Sensor Signal Dynamic Chamber Circuit

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Nissan
P1110

Intake Valve Timing Control Solenoid

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Subaru
P1110

Atmospheric Pressure Sensor Low Input

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Volkswagen
P1110

Oxygen Sensor Heating Circuit Bank 2 Sensor 2 Short To B+

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BMW
P1111

Engine Coolant Temperature Radiator Outlet Sensor Low Input

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Buick / Cadillac +5
P1111

Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage

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Ford / Jaguar +2
P1111

System Pass

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Subaru
P1111

Atmospheric Pressure Sensor High Input

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Volkswagen
P1111

Oxygen Sensor Control Bank 1 System Too Lean

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BMW
P1112

Engine Coolant Temperature Radiator Outlet Sensor High Input

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Buick / Cadillac +5
P1112

Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage

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Ford / Lincoln +1
P1112

Intake Air Temperature Sensor Intermittent

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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.