Audi · Porsche · Bentley · LamborghiniP18256 codes

Audi · Porsche · Bentley · Lamborghini — fault codes starting with P18

256 fault codes starting with P18 on Audi · Porsche · Bentley · Lamborghini vehicles, with descriptions: P1800, P1801, P1802 and more.

Fault codes
256
Block
P18
Make group
Audi · Porsche · Bentley · Lamborghini
Source language
English

The 256 Audi · Porsche · Bentley · Lamborghini fault codes that start with P18, with descriptions.

CodeDescription
P1800Hydraulic actuator valve electrical malfunction in circuit
P1801Signal buzzer activation Short circuit to B+
P1802Clutch Pedal Switch implausible signal
P1803Planetary post-switch stage mechanical malfunction
P1804Hydraulic actuator range sensor electrical malfunction in circuit
P1805Hardware monitoring function detected control module error: Internal error present.
P1806Hydraulic actuator range sensor lower limit not reached
P1807Hydraulic actuator range sensor no or incorrect adaptation/basic setting
P1808Hydraulic actuator range sensor implausible signal
P18094-Low range hydraulic pump electrical malfunction in circuit
P180AGear actuator 1 Leaving Neutral not allowed
P180BGear actuator 2 Leaving Neutral not allowed
P180CGear actuator 3 Leaving Neutral not allowed
P180DGear actuator 4 Leaving Neutral not allowed
P180EPosition sensor for clutch 1 implausible signal
P180FPosition sensor for clutch 2 implausible signal
P18108th gear Incorrect Ratio
P1811Torque converter lock-up clutch Excessive temperature preliminary stage reached
P1812Torque converter lock-up clutch Excessive temperature preliminary stage exceeded
P1813Pressure control valve 1 -N215 Malfunction
P1814Press.ctrl. valve 1 Open circuit/short circuit to Ground (GND)
P1815Press.ctrl. valve 1 Short circuit to B+
P1816Motor for auxiliary hydraulic pump for transmission oil, overtemperature
P1817Temperature sensor Auxiliary hydraulic pump Transmission oil Overtemperature
P1818Pressure control valve 2 -N216 Malfunction
P1819Press.ctrl. valve 2 Open circuit/short circuit to Ground (GND)
P181ASIL Fault of KFC6_PCLUTCH1
P181BGear Recognition Sensor Electrical malfunction
P181CGear recognition sensor Implausible signal
P181DGear Recognition Sensor Malfunction
P181EGear Recognition Sensor Gear position implausible
P181FActivation of auxiliary hydraulic pump, transmission oil, coil overtemperature
P1820Transfer Case Clockwise Shift Relay Coil Circuit Failure
P1821Transfer Case Clockwise Shift Relay Coil Open Circuit
P1822Transfer Case Clockwise Shift Relay Coil Short Circuit To Battery
P1823Transfer Case Clockwise Shift Relay Coil Short Circuit To Ground
P1824Press.ctrl. valve 3 Open circuit/short circuit to Ground (GND)
P1825Press.ctrl. valve 3 Short circuit to B+
P1826Motor 1 for gear sel.?Excess current
P1827Gear positioner motor 2?Excess current
P1828Transfer Case Counter Clockwise Shift Relay Coil Circuit Failure
P1829Transfer Case Counter Clockwise Shift Relay Coil Open Circuit
P182AClutch status Low
P182BClutch status Signal too high
P182CFuel shutoff via transmission Open circuit/short circuit to Ground (GND)
P182DFuel shutoff via transmission Short circuit to B+
P182ESensor voltage supply engine 1 for gear sel.?Short-circuit to ground in actuator wiring harness
P182FSensor voltage supply engine 1 for gear sel.?Short-circuit to B+ in actuator wiring harness
P1830Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery
P1831Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Ground
P1832Downshift gear?Not reached
P1833Transfer Case Differential Lock-Up Solenoid Open Circuit
P1834Transfer Case Differential Lock-Up Solenoid Short Circuit To Battery
P1835Transfer Case Differential Lock-Up Solenoid Short Circuit To Ground
P1836Sensor voltage supply engine 2 Short circuit to Ground (GND)
P1837Sensor voltage supply engine 2 Short circuit to B+
P1838Press.ctrl. valve 6 electrical malfunction in circuit
P1839Press.ctrl. valve 6 Open circuit/short circuit to Ground (GND)
P183AControl unit internal processor monitoring
P183BSpeed request to engine implausible
P183CClutch activation implausible
P183DSensor voltage supply clutch Short circuit to Ground (GND)
P183ESensor voltage supply clutch Short circuit to B+
P183FNeutral position?periodically not attained
P1840Press.ctrl. valve 6 Short circuit to B+
P1841Engine control module/Transmission Control Module (TCM) Versions not compatible
P1842Read DTC memory of instrument cluster
P1843Read DTC memory of distance control CM
P1844Read DTC memory of electronic central unit
P1845Read DTC memory of Steering Column Electronic
P1846Neutral position?Not reached
P1847Read DTC memory of ABS CM
P1848Read DTC memory of engine CM
P1849Read DTC memory of transmission CM
P184ATransfer Case Unable To Transition Between 4x2 and 4x4 Mode
P184BTransfer Case Unable To Transition Between 4x4 High and 4x4 Low Range
P184CEngaging gear?periodically not attained
P184DDownshift gear?periodically not attained
P184ESelected gear?Implausible
P184FHybrid data bus Implausible Message from Engine CM
P1850Powertrain data bus Missing Message from Engine CM
P1851Powertrain data bus missing message from ABS control module
P1852Powertrain data bus Implausible Message from Engine CM
P1853Powertrain data bus Implausible message from ABS control module
P1854Data Bus Powertrain Hardware Defective
P1855Powertrain data bus Software version monitoring
P1856Throttle valve potentiometer Error Message from Engine Contr.
P1857Load signal Error Message from Engine Contr.
P1858Engine Speed from engine CM Error Message from Engine Contr.
P1859Brake lamp switch Error Message from Engine Contr.
P185AGear selector movem. diffic.
P185BVehicle allocation incorrect
P185CClutch cooling valve 1 Electrical error
P185DDifferential Lock-Up Control Circuit Performance
P185EInternal Control Module Differential Lock-Up Performance
P185FSolenoid valve 1 for parking lock mechanical malfunction
P1860Kick Down switch Error Message from Engine Contr.
P1861Accelerator position sensor-G79 Malfunction message from ECM
P1862Powertrain data bus missing message from instrument cluster
P1863Powertrain data bus missing message from steering angle sensor
P1864Powertrain data bus Missing message from ADR control module
P1865Powertrain data bus missing message f.central electr.control
P1866Powertrain data bus missing messages
P1867Powertrain data bus missing message of steering columns electron.
P1868Left Transmission Mount Valve Short circuit to B+
P1869Left Transmission Mount Valve Short circuit to Ground (GND)
P186ASolenoid valve 2 for parking lock Electrical error
P186BSolenoid valve 2 for parking lock mechanical malfunction
P186CClutch temperature sensor 1 Electrical error
P186DClutch temperature sensor 2 Electrical error
P186ESensor voltage supply engine 1 for gear sel.?Short-circuit to ground in control module
P186FSensor voltage supply engine 1 for gear sel.?Short-circuit to B+ in control module
P1870Mechanical Transfer Case 4x4 Switch Circuit Failure
P1871Mechanical Transfer Case 4x4 Switch Circuit Short To Battery
P1872Right Transmission Mount Valve Short circuit to Ground (GND)
P1873Right Transmission Mount Valve Open circuit
P1874Transfer Case Hall Effect Sensor Power Circuit Failure
P1875Transfer Case Hall Effect Sensor Power Circuit Short To Battery
P1876Valve for torque support mount Open circuit
P1877Transm. cooling circuit activation Open circuit
P1878Transm. cooling circuit activation Short circuit to B+
P1879Transm. cooling circuit activation Short circuit to Ground (GND)
P187AGear selector 1 Engaging process not successful
P187BGear selector 2 Engaging process not successful
P187CGear selector 3 Engaging process not successful
P187DGear selector 4 Engaging process not successful
P187EDifferential Lock-Up Control Circuit High
P187FDifferential Lock-Up Input Switch Circuit Low
P1880Data bus missing message from Diagnostic Interface CM
P1881Target acceleration signal missing message
P1882Powertrain data bus missing message from electrical parking brake system CM
P1883Starter Interlock signal (P/N) Implausible signal
P1884Signal line Reverse light short circuit to ground
P1885Signal for back-up light Short circuit to B+
P1886Signal for back-up light Open circuit
P1887TCC Release Switch Circuit
P1888valve for coolant system circuit Short circuit to B+
P1889valve for coolant system circuit Short circuit to Ground (GND)/open circuit
P188ACoolant shut-off valve Electrical malfunction
P188BValve 4 in partial transmission 1 mechanical malfunction
P188CValve 4 in partial transmission 2 mechanical malfunction
P188DGear positioner motor 2?Function limitation due to excessive temperature
P188EGear positioner motor 1 Function limitation due to excessive temperature
P188FInjection cut-off due to pre-ignition, cylinder 5
P1890Signal wire for Tiptronic Electrical malfunction
P1891Signal wire for Tiptronic, implausible signal
P1892Throttle Position Sensor PWM Signal High
P1893Engine Torque Signal Low Voltage
P1894Engine Torque Signal High Voltage
P1895TCM to ECM Torque Reduction Circuit
P1896Clutch 1 Temperature shock
P1897Clutch 2 Temperature shock
P1898Clutch 1 Function restriction
P1899Clutch 2 Function restriction
P189AClutch 1 Clearance too small
P189BClutch 2 Clearance too small
P189CFunction restriction due to insufficient pressure build-up
P189DCounter of one or several other messages faulty
P189ECounter of one or several other engine messages faulty
P189FCounter of one or several ESP messages faulty
P18A0Injection cut-off due to pre-ignition, cylinder 6
P18A1Injection cut-off due to pre-ignition, cylinder 7
P18A2Gear_actuator_13 adaptation value too high
P18A3Coolant pump for transmission Dry running
P18A4Coolant pump for transmission mechanical malfunction
P18A5Coolant pump for transmission Excess temp.
P18A6Coolant pump for transmission Engine speed too low
P18A7Coolant pump for transmission Electrical error
P18A8Coolant pump for transmission Communication malfunction
P18A9Motor for clutch positioner implausible signal
P18AAMotor 1 for gear selector, implausible signal
P18ABMotor 2 for gear selector, implausible signal
P18ACInitialization Timeout Selector lever (not active)
P18ADOutput speed sensor Short circuit to B+
P18AEOutput speed sensor Short circuit to Ground (GND)
P18AFInput speed sensor Short circuit to B+
P18B0Input speed sensor Short circuit to Ground (GND)
P18B1Key P for Tiptronic Electrical error
P18B2Key P for Tiptronic mechanical malfunction
P18B3Key R for Tiptronic Electrical error
P18B4Key R for Tiptronic mechanical malfunction
P18B5Key N for Tiptronic Electrical malfunction
P18B6Key N for Tiptronic mechanical malfunction
P18B7Key M for Tiptronic Electrical error
P18B8Key M for Tiptronic mechanical malfunction
P18B9Shaft 1 Gear shifting failed
P18BAShaft 2 Gear shifting failed
P18BBKey P for Tiptronic Short circuit to ground
P18BCKey P for Tiptronic Short circuit to B+
P18BDKey P for Tiptronic Open circuit
P18BEKey R for Tiptronic Short circuit to ground
P18BFKey R for Tiptronic Short circuit to B+
P18C0Key R for Tiptronic Open circuit
P18C1Key M for Tiptronic Short circuit to ground
P18C2Key M for Tiptronic Short circuit to B+
P18C3Key M for Tiptronic Open circuit
P18C4Parking lock Implausible signal
P18C5Parking lock mechanical malfunction
P18C6Selector lever transmission range display Implausible signal
P18C7Selector lever transmission range display Electrical error
P18C8Selector lever transmission range display Supply voltage
P18C9Button for park. lock Short circuit to ground
P18CAButton for park. lock Electrical error
P18CBButton for park. lock Implausible signal
P18CCMotor for selector lever lock., transv. Electrical error
P18CDSensor for selector lever lock, transv. Electrical error
P18CESelector lever transmission range display Short circuit to B+
P18CFButton for park. lock mechanical malfunction
P18D0Injection cut-off due to pre-ignition, cylinder 8
P18D1Cam adjuster "A" cylinders 1 and 2 Self-switching
P18D2Cam adjuster "B" cylinders 1 and 2 Self-switching
P18D3Cam adjuster "A" cylinders 3 and 4 Self-switching
P18D4Cam adjuster "B" cylinders 3 and 4 Self-switching
P18D5Cam adjuster "A" cylinders 1 and 2 implausible signal
P18D6Cam adjuster "B" cylinders 1 and 2 implausible signal
P18D7Cam adjuster "A" cylinders 3 and 4 implausible signal
P18D8Cam adjuster "B" cylinders 3 and 4 implausible signal
P18D9Ion current sensing, cylinder 13 electrical error
P18DAIon current sensing, cylinder 14 electrical error
P18DBIon current sensing, cylinder 15 electrical error
P18DCIon current sensing, cylinder 16 electrical error
P18DDIon current sensing, cylinder 16 Implausible signal
P18DEIon current sensing, cylinder 15 Implausible signal
P18DFIon current sensing, cylinder 14 Implausible signal
P18E0Ion current sensing, cylinder 13 Implausible signal
P18E1Ion current sensing, cylinder 13 Short circuit to Ground (GND)
P18E2Ion current sensing, cylinder 14 Short circuit to Ground (GND)
P18E3Ion current sensing, cylinder 15 Short circuit to Ground (GND)
P18E4Ion current sensing, cylinder 16 Short circuit to Ground (GND)
P18E5Ion current sensing, cylinder 16 Short circuit to B+
P18E6Ion current sensing, cylinder 15 Short circuit to B+
P18E7Ion current sensing, cylinder 14 Short circuit to B+
P18E8Ion current sensing, cylinder 13 Short circuit to B+
P18E9Ion current sensing for engine speed (RPM) sensor Electrical malfunction
P18EAIon current sensing for engine speed (RPM) sensor Implausible signal
P18EBIon current sensing for engine speed (RPM) sensor Short circuit to Ground (GND)
P18ECIon current sensing for engine speed (RPM) sensor Short circuit to B+
P18EDIon current system Amplification switching implausible
P18EEIon current system Input signal too great
P18EFseparating clutch no basic setting
P18F0Starter generator Brush wear
P18F1Function restriction due to deviating wheel speeds
P18F2Exhaust cam adjuster "B" cylinder 1 Short circuit to B+
P18F3Exhaust cam adjuster "B" cylinder 2 Short circuit to B+
P18F4Exhaust cam adjuster "B" cylinder 3 Short circuit to B+
P18F5Exhaust cam adjuster "B" cylinder 4 Short circuit to B+
P18F6Exhaust cam adjuster "B" cylinder 5 Short circuit to B+
P18F7Exhaust cam adjuster "B" cylinder 6 Short circuit to B+
P18F8Exhaust cam adjuster "B" cylinder 7 Short circuit to B+
P18F9Exhaust cam adjuster "B" cylinder 8 Short circuit to B+
P18FACam adjuster, inlet “B” cylinder 1 Short circuit to B+
P18FBCam adjuster, inlet “B” cylinder 2 Short circuit to B+
P18FCCam adjuster, inlet “B” cylinder 3 Short circuit to B+
P18FDCam adjuster, inlet “B” cylinder 4 Short circuit to B+
P18FECam adjuster, inlet “B” cylinder 5 Short circuit to B+
P18FFCam adjuster, inlet “B” cylinder 6 Short circuit to B+

Other blocks

Makes that use these codes

Code descriptions are shown in their source language; records without a translation stay raw. Source: CarCoding fault code database.

Get CarCoding

Connect your ELM327 adapter, read fault codes, and browse module settings on supported vehicles.

App Store Google Play

The app is free to download.