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Powertrain code references — Page 56.

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

9,891 code references in powertrain

Buick / Cadillac +4
P1605

Loss Of HVAX Serial Data

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Ford / Lincoln +1
P1605

PCM Keep Alive Memory Test Error

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Jaguar
P1605

Keep Alive Memory Test Failure

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Lexus
P1605

Knock Control CPU Malfunction

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Mazda
P1605

Powertrain Control Module Keep Alive Memory Test Error

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Nissan
P1605

AT Diagnostic Communication Line

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Toyota
P1605

Knock Control CPU

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Volkswagen
P1605

Rough Road Acceleration Sensor Electrical Malfunction

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Buick / Cadillac +4
P1606

Serial Communication Problem With Device 6

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Jaguar
P1606

ECM Control Relay Output Circuit

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Kia
P1606

Chassis Accelerator Sensor Signal Circuit Fault

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Volkswagen
P1606

Rough Road Spec Engine Torque ABS ECU Electrical Malfunction

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BMW
P1607

CAN Version

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Buick / Saturn
P1607

Serial Communication Problem With Devise 7

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Cadillac / Chevrolet +2
P1607

Serial Communication Problem With Device 7

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Acura / Honda
P1607

ECM Internal Circuit Failure A

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Jaguar
P1607

MIL Output Circuit

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Volkswagen
P1607

Vehicle Speed Signal Error Message From Instrument Cluster

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BMW
P1608

Serial Communicating Link Control Module

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Buick / Cadillac +4
P1608

Serial Communication Problem With Device 8

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Acura / Honda
P1608

ECM Internal Circuit Failure B

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Jaguar
P1608

Watchdog Malfunction

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Kia
P1608

PCM Malfunction

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Mazda
P1608

Powertrain Control Module ECM CPU DTC Test Fault

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Volkswagen
P1608

Steering Angle Signal Error Message From Steering Angle Sensor

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BMW
P1609

Serial Communicating Link EML

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Buick / Cadillac +4
P1609

Loss Of TCS Serial Data

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Jaguar
P1609

Internal Control Module CPU To CPU Communication Failure

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Mazda
P1609

Powertrain Control Module ECM CPU Knock Sensor Circuit

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Volkswagen
P1609

Crash Shut Down Activated

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Buick / Cadillac +4
P1610

Loss Of PZM Serial Data

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Mercedes-Benz
P1610

Voltage Supply Missing Or Relay Module K40

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BMW
P1611

Serial Communicating Link Transmission Control Module

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Buick / Cadillac +4
P1611

Loss Of CVRTD Serial Data

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Jaguar
P1611

Throttle Target Malfunction 1

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Kia
P1611

MIL Request Circuit Voltage Low

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Mercedes-Benz
P1611

IFI Control Module N37

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Volkswagen
P1611

MIL Call-Up Circuit TCM Short To Ground

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Buick / Cadillac +4
P1612

Loss Of IPM Serial Data

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Jaguar
P1612

Throttle Offset Malfunction

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Mercedes-Benz
P1612

IFI Control Module N37 Voltage Circuit 15

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Volkswagen
P1612

Engine Control Module Incorrect Coding

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Buick / Cadillac +4
P1613

Loss Of DIM Serial Data

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Mercedes-Benz
P1613

IFI Control Module N37

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Volkswagen
P1613

MIL Call-Up Circuit Open Short To B+

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Buick / Cadillac +4
P1614

Loss Of RIM Serial Data

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Kia
P1614

MIL Request Circuit Voltage High

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Mercedes-Benz
P1614

IFI Control Module N37 Voltage Or Fuel Metering Actuator Y231K1 Or Fuel Rack Position Sensor Y2311

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Volkswagen
P1614

MIL Call-Up Circuit Transmission Control Module Range Performance

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Buick / Cadillac +4
P1615

Loss Of VTD Serial Data

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Mercedes-Benz
P1615

IFI Control Module N37 Supply Voltage

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Volkswagen
P1615

Engine Oil Temperature Sensor Circuit Range Performance

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Kia
P1616

Chassis Accelerator Sensor Signal Low Voltage

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Volkswagen
P1616

Glow Plug Heater Indicator Circuit Short To B+

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Buick / Cadillac +4
P1617

Engine Oil Level Switch Circuit

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Kia
P1617

Chassis Accelerator Sensor Signal High Voltage

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Mercedes-Benz
P1617

Control Module Fault Or Control Module Not Coded

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Volkswagen
P1617

Glow Plug Heater Indicator Circuit Open Short To Ground

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Volkswagen
P1618

Glow Plug Heater Relay Circuit Short To B+

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BMW
P1619

MAP Cooling Control Circuit Signal Low

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Buick / Cadillac +4
P1619

Engine Oil Life Monitor Reset Circuit

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Volkswagen
P1619

Glow Plug Heater Relay Circuit Open Short To Ground

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BMW
P1620

MAP Cooling Control Circuit Signal High

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Buick / Cadillac +4
P1620

Low Coolant Circuit

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Volkswagen
P1620

Engine Coolant Temperature Signal Open Short To B+

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Buick / Cadillac +4
P1621

PCM Memory Performance

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Mazda
P1621

Immobilizer System Fault

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Volkswagen
P1621

Engine Coolant Temperature Signal Short To Ground

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BMW
P1622

MAP Cooling Control Circuit Electrical

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Buick / Cadillac +4
P1622

Cylinder Select

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Mazda
P1622

Immobilizer System Fault

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Mercedes-Benz
P1622

Electrohydraulic Shut-Off Actuator Y11

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Volkswagen
P1622

Engine Coolant Temperature Signal Range Performance

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BMW
P1623

Pedal Position Sensor Potentiometer Supply

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Buick / Cadillac +4
P1623

Transmission Temp Pull-Up Resistor

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Mazda
P1623

Immobilizer System Fault

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Volkswagen
P1623

Data Bus Powertrain No Communication

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BMW
P1624

Pedal Position Sensor Potentiometer Supply Channel 1 Electrical

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Buick / Cadillac +4
P1624

Customer Snapshot Data Available

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Kia
P1624

TCM To PCM MIL Request Signal Circuit Fault

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Mazda
P1624

Immobilizer System Fault

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Volkswagen
P1624

MIL Request Signal Active

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BMW
P1625

Pedal Position Sensor Potentiometer Supply Channel 2 Electrical

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Buick / Cadillac +4
P1625

PCM System Reset

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Ford / Lincoln +1
P1625

Voltage to Vehicle Load Control Module Fan Circuit Not Detected

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Mercedes-Benz
P1625

Check Engine MIL

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Volkswagen
P1625

CAN Bus Unplausible Message From Transmission Control

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Buick / Cadillac +4
P1626

Theft Deterrent Fuel Enable Signal Lost

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Ford / Lincoln +1
P1626

Voltage to Vehicle Load Control Module Circuit Not Detected

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Volkswagen
P1626

Data Bus Drive Missing Command From M/T

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Buick / Cadillac +4
P1627

A/D Performance

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Mazda
P1627

Powertrain Control Module ECM TCS Line Communication Error

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Volkswagen
P1627

Data Bus Powertrain Missing Message From Fuel Injection Pump

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Buick / Cadillac +4
P1628

ECT Pull-Up Resistor

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Mazda
P1628

Powertrain Control Module ECM TCS Any Line Communication Error

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Volkswagen
P1628

Data Bus Powertrain Missing Message From Distance Control

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Buick / Cadillac +4
P1629

Theft Deterrent System Cranking Signal

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Volkswagen
P1629

Data Bus Powertrain Missing Message From Distance Control

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Buick / Cadillac +4
P1630

Theft Deterrent Learn Mode Active

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Mazda
P1630

Alternator Regulator 1 Control 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.