P CODE FAMILY

Powertrain code references — Page 63.

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

Volkswagen

P1861

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.

Throttle Position Sensor Error Message From ECM

Data Bus Powertrain Missing Message From Instrument Panel ECU

Data Bus Powertrain Missing Message From Steering Angle Sensor

Torque Converter Clutch Circuit

Data Bus Powertrain Missing Message From ADR Control Module

Data Bus Powertrain Missing Message From Central Electronics

Transmission Transfer Case System Concern Servicing Required

Data Bus Powertrain Missing Messages

Transmission Transfer Case Contact Plate General Circuit Failure

Transmission Fluid Life

Transmission Component Slipping

TCC Stator Temp. Switch Circuit Low

TCC Stator Temp. Switch Circuit High

4WD Low Switch Circuit

4WD Low Switch Circuit Malfunction

Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Failure

Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Short To Battery

Engine Coolant Level Switch Circuit Failure GEM

Engine Coolant Level Switch Circuit Short to Ground

Engine Coolant Level Switch Circuit Failure GEM

TCC Enable/Shift Light Circuit

Engine Coolant Level Lamp Circuit Short to Ground

Shift Timing Solenoid

TCC Release Switch Circuit

ECM Data Input Circuit

Throttle Position Sensor PWM Signal Low

Transmission Transfer Case Contact Plate Ground Return Open Circuit

Throttle Position Sensor PWM Signal High

Engine Torque Signal Low Voltage

Engine Torque Signal High Voltage

TCM To ECM Torque Reduction Circuit

TCM To ECM Torque Reduction Circuit Malfunction

Park Neutral Position Switch Stuck In Park or In Gear

P/N Position Transaxle Range Switch Circuit Fault

Output Shaft Speed (OSS) Circuit Intermittent Malfunction

Turbine Speed Sensor Circuit Intermittent

Turbine Shaft Speed (TSS) Circuit Intermittent Malfunction

Torque Converter Clutch Circuit Intermittent

Kickdown Solenoid Relay Control Circuit

Kickdown Solenoid Circuit Low Voltage

Kickdown Solenoid Circuit High Voltage

NOx Adsorber Efficiency Below Threshold Bank 1

NOx Adsorber Efficiency Below Threshold Bank 2

Particulate Filter Efficiency Below Threshold Bank 1

Particulate Filter Efficiency Below Threshold Bank 2

Intake Manifold Runner Control Stuck Open Bank 1

Intake Manifold Runner Control Stuck Open Bank 2

Intake Manifold Runner Control Stuck Closed Bank 1

Intake Manifold Runner Control Stuck Closed Bank 2

Intake Manifold Runner Control Circuit/Open Bank 1

Intake Manifold Runner Control Circuit Low Bank 1

Intake Manifold Runner Performance Bank 1

Intake Manifold Runner Performance Bank 2

Particulate Filter Over Temperature Bank 1

Particulate Filter Over Temperature Bank 2

Catalyst System Over Temperature Bank 1

Catalyst System Over Temperature Bank 2

Intake Manifold Runner Control Circuit High Bank 1

Intake Manifold Runner Control Circuit/Open Bank 2

Intake Manifold Runner Control Circuit Low Bank 2

Intake Manifold Runner Control Circuit High Bank 2

Intake Manifold Runner Position Sensor/Switch Circuit Bank 1

Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance Bank 1

Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 1

Intake Manifold Runner Position Sensor/Switch Circuit High Bank 1

Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1

Intake Manifold Runner Position Sensor/Switch Circuit Bank 2

Reductant Injection Valve Circuit Range/Performance Bank 2 Unit 1

Intake Manifold Runner Control Actuator Supply Voltage Low Bank 1

Intake Manifold Runner Control Actuator Supply Voltage Low Bank 2

Intake Manifold Runner Control Actuator Internal Performance Bank 1

Intake Manifold Runner Control Actuator Internal Performance Bank 2

Reductant Pump A Stuck On

Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance Bank 2

Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2

Intake Manifold Runner Position Sensor/Switch Circuit High Bank 2

Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 2

EVAP Fuel Vapor Temperature Sensor Circuit

EVAP Fuel Vapor Temperature Sensor Performance

EVAP Fuel Vapor Temperature Sensor Circuit Low Voltage