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Powertrain code references — Page 40.

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

9,891 code references in powertrain

Toyota
P1129

Electric Throttle Control System

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Volkswagen
P1129

Long Term Fuel Trim Bank 2 System Too Rich

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Buick / Cadillac +5
P1130

HO2S Circuit Low Variance Bank 1 Sensor 1

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Ford / Lincoln +1
P1130

Lack of Upstream Heated Oxygen Sensor Switch Adaptive Fuel Limit Bank 1

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Lexus
P1130

Air/Fuel Ratio Sensor Circuit Range Performance Malfunction Bank 1 Sensor 1

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Mazda
P1130

HO2S Bank 1 Sensor 1 Not Switching Fuel Control Limit Reached

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Nissan
P1130

Swirl Control Valve Control Solenoid Valve

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Subaru
P1130

Front Oxygen Sensor Circuit Malfunction Open Circuit

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Toyota
P1130

Air/Fuel Sensor Circuit Range Performance Bank 1 Sensor 1

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Volkswagen
P1130

Long Term Fuel Trim Bank 2 System Too Lean

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Buick / Cadillac +5
P1131

HO2S Circuit Low Variance Bank 1 Sensor 2

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Ford / Lincoln +1
P1131

Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1

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Mazda
P1131

HO2S Bank 1 Sensor 1 Signal Below 0.45v AF Ratio Too Lean

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Subaru
P1131

Front Oxygen Sensor Circuit Malfunction Short Circuit

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Volkswagen
P1131

Bank 2 Sensor 1 Resistance Too High

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BMW
P1132

O2 Sensor Heater Control Circuit Bank 1 Sensor 1

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Buick / Cadillac +4
P1132

H02S Circuit Low Variance Bank 2 Sensor 1

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Ford / Lincoln +1
P1132

Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Rich Bank 1

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Mazda
P1132

HO2S Bank 1 Sensor 1 Signal Above 0.45v AF Ratio Too Rich

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Oldsmobile
P1132

HO2S Circuit Low Variance Bank 2 Sensor 1

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Volkswagen
P1132

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

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BMW
P1133

O2 Sensor Heater Control Circuit Bank 2 Sensor 1

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Buick / Cadillac +5
P1133

HO2S Insufficient Switching

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Ford / Lincoln +2
P1133

Bank 1 Fuel Control Shifted Lean

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Lexus
P1133

Air/Fuel Ratio Sensor Circuit Response Malfunction Bank 1 Sensor 1

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Toyota
P1133

Air/Fuel Sensor Circuit Response Bank 1 Sensor 1

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Volkswagen
P1133

Oxygen Sensor Heating Circuit Bank 1 + 2 Sensor 1 Electrical Malfunction

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BMW
P1134

O2 Sensor Heater Circuit Signal Intermittent Bank 1 Sensor 1

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Buick / Cadillac +5
P1134

HO2S Transition Time Ratio

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Ford / Lincoln +2
P1134

Bank 1 Fuel Control Shifted Rich

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Subaru
P1134

Front Oxygen AF Sensor Microcomputer Problem

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Volkswagen
P1134

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

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BMW
P1135

O2 Sensor Heater Circuit Low Voltage Bank 1 Sensor 1

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Buick / Cadillac +5
P1135

HO2S Lean Average Bank 1 Sensor 1

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Ford / Lincoln +1
P1135

Pedal Position Sensor A Circuit Intermittent

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Lexus
P1135

Air/Fuel Ratio Sensor Heater Circuit Malfunction Bank 1 Sensor 1

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Mazda
P1135

HO2S Bank 1 Sensor 1 Heater Circuit Low Input

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Nissan
P1135

Intake Valve Timing Control Circuit Bank 2

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Toyota
P1135

Air/Fuel Sensor Heater Circuit Response Bank 1 Sensor 1

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Volkswagen
P1135

Oxygen Sensor Heating Circuit Bank 1 + 2 Sensor 2 Electrical Malfunction

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BMW
P1136

O2 Sensor Heater Circuit High Voltage Bank 1 Sensor 1

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Buick / Cadillac +5
P1136

HO2S Rich Average Bank 1 Sensor 1

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Jaguar
P1136

Control Box Fan Circuit

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Mazda
P1136

HO2S Bank 1 Sensor 1 Heater Circuit High Input

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Volkswagen
P1136

Long Term Fuel Trim Add Fuel Bank 1 System Too Lean

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BMW
P1137

O2 Sensor Heater Circuit Signal Intermittent Bank 1 Sensor 2

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Buick / Cadillac +5
P1137

HO2S Bank 1 Sensor 2 Lean Or Low Voltage

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Ford / Lincoln +1
P1137

Lack of Downstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1

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Jaguar
P1137

Lack Of HO2S12 Switches Sensor Indicates Lean

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Mazda
P1137

HO2S Bank 1 Sensor 2 Not Switching Fuel Control Limit Reached

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Subaru
P1137

Front Oxygen AF Sensor Circuit Range Performance Problem

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Volkswagen
P1137

Long Term Fuel Trim Add Fuel Bank 1 System Too Rich

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BMW
P1138

O2 Sensor Heater Circuit Low Voltage Bank 1 Sensor 2

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Buick / Cadillac +5
P1138

HO2S Bank 1 Sensor 2 Rich Or High Voltage

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Ford / Lincoln +1
P1138

Lack of Downstream Heated Oxygen Sensor Switch Sensor Indicates Rich Bank 1

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Jaguar
P1138

Lack Of HO2S12 Switches Sensor Indicates Rich

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Mazda
P1138

HO2S Bank 1 Sensor 2 Signal Above 0.45v AF Ratio Too Rich

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Volkswagen
P1138

Long Term Fuel Trim Add Fuel Bank 2 System Too Lean

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BMW
P1139

O2 Sensor Heater Circuit High Voltage Bank 1 Sensor 2

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Buick / Cadillac +5
P1139

HO2S Insufficient Switching Bank 1 Sensor 2

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Ford / Lincoln +1
P1139

Water In Fuel Indicator Circuit Malfunction

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Subaru
P1139

Front Oxygen AF Sensor #1 Heater Circuit Performance Range Problem

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Volkswagen
P1139

Long Term Fuel Trim Add Fuel Bank 2 System Too Rich

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BMW
P1140

Mass Or Volume Air Flow Circuit Range Performance Problem

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Buick / Cadillac +5
P1140

HO2S Transition Time Ratio Bank 1 Sensor 2

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Ford / Lincoln +1
P1140

Water In Fuel Condition

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Kia
P1140

Load Calculation Cross Check

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Nissan
P1140

Intake Valve Timing Control Position Sensor Bank 1

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Volkswagen
P1140

Bank 2 Sensor 2 Resistance Too High

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Buick / Cadillac +5
P1141

HO2S Bank 1 Sensor 2 Average Voltage Level

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Ford / Lincoln +1
P1141

Fuel Restriction Indicator Circuit Malfunction

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Mazda
P1141

HO2S Bank 1 Sensor 2 Heater Circuit Low Input

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Subaru
P1141

Mass Air Flow Sensor Circuit High Input

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Volkswagen
P1141

Load Calculation Cross Check Range Performance

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Ford / Lincoln +1
P1142

Fuel Restriction Condition

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Mazda
P1142

HO2S Bank 1 Sensor 2 Heater Circuit High Input

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Subaru
P1142

Mass Air Flow Sensor Circuit Low Input

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Volkswagen
P1142

Load Calculation Cross Check Lower Limit Exceeded

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Buick / Cadillac +5
P1143

HO2S Bank 1 Sensor 3 Lean Or Low Voltage

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Jaguar
P1143

Air Assisted Injector Control Valve Range Performance

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Mazda
P1143

HO2S Bank 1 Sensor 3 Signal Below 0.45v AF Ratio Too Lean

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Subaru
P1143

Pressure Sensor Circuit Low Input

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Volkswagen
P1143

Load Calculation Cross Check Upper Limit Exceeded

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Buick / Cadillac +5
P1144

HO2S Bank 1 Sensor 3 Rich Or High Voltage

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Jaguar
P1144

Air Assisted Injector Control Valve Circuit

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Mazda
P1144

HO2S Bank 1 Sensor 3 Signal Above 0.45v AF Ratio Too Rich

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Subaru
P1144

Pressure Sensor Circuit High Input

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Volkswagen
P1144

Mass Or Volume Air Flow Circuit Open/Short To Ground

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BMW
P1145

Solenoid Valve Running Losses Control Circuit Electrical

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Buick / Cadillac +5
P1145

HO2S Cross Counts Bank 1 Sensor 3

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Nissan
P1145

Intake Valve Timing Control Position Sensor Bank 2

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Volkswagen
P1145

Mass Or Volume Air Flow Circuit Short To B+

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Subaru
P1146

Pressure Sensor Circuit Range Performance Problem High Input

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Volkswagen
P1146

Mass Or Volume Air Flow Circuit Power Supply Malfunction

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Volkswagen
P1147

Oxygen Sensor Control Bank 2 System Too Lean

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Nissan
P1148

Closed Loop Control Bank 1

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Volkswagen
P1148

Oxygen Sensor Control Bank 2 System Too Rich

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Volkswagen
P1149

Oxygen Sensor Control Bank 1 Out Of Range

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Ford / Lincoln +1
P1150

Lack of Upstream Heated Oxygen Sensor Switch Adaptive Fuel Limit Bank 2

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Lexus
P1150

Air/Fuel Ratio Sensor Circuit Range Performance Malfunction Bank 2 Sensor 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.