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CarOBDCodes

The code is a starting point

Look up an OBD-II trouble code.

Search 3,195 reference definitions. Check the code description first, then confirm it applies to your vehicle before following a diagnostic procedure.

P

Powertrain

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B

Body

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C

Chassis

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U

Network

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Use the right definition

Manufacturer-specific descriptions can vary with model, engine and year. This directory preserves the supplied reference data; it is not a substitute for vehicle-specific service information. Detailed guides identify their sources and reviewer.

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Browse the reference library

P1812Transmission 4-Wheel Drive Mode Select Circuit FailureP1813Transmission 4-Wheel Drive Mode Select Open CircuitP1814Transmission 4-Wheel Drive Mode Select Short Circuit To BatteryP1815Transmission 4-Wheel Drive Mode Select Short Circuit To GroundP1816Transmission Neutral Safety Switch Circuit FailureP1817Transmission Neutral Safety Switch Open CircuitP1818Transmission Neutral Safety Switch Short Circuit To BatteryP1819Transmission Neutral Safety Switch Short Circuit To GroundP1820Transmission Transfer Case Clockwise Shift Relay Coil Circuit FailureP1821Transmission Transfer Case Clockwise Shift Relay Coil Open CircuitP1822Transmission Transfer Case Clockwise Shift Relay Coil Short Circuit To BatteryP1823Transmission Transfer Case Clockwise Shift Relay Coil Short Circuit To GroundP1824Transmission 4-Wheel Drive Clutch Relay Circuit FailureP1825Transmission 4-Wheel Drive Clutch Relay Open CircuitP1826Transmission 4-Wheel Drive Low Clutch Relay Circuit To BatteryP1827Transmission 4-Wheel Drive Low Clutch Relay Circuit To GroundP1828Transmission Transfer Case Counter Clockwise Shift Relay Coil Circuit FailureP1829Transmission Transfer Case Counter Clockwise Shift Relay Coil Open CircuitP1830Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To BatteryP1831Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To GroundP1832Transmission Transfer Case Differential Lock-Up Solenoid Circuit FailureP1833Transmission Transfer Case Differential Lock-Up Solenoid Open CircuitP1834Transmission Transfer Case Differential Lock-Up Solenoid Short Circuit To BatteryP1835Transmission Transfer Case Differential Lock-Up Solenoid Short Circuit To GroundP1836Transmission Transfer Case Front Shaft Speed Sensor Circuit FailureP1837Transmission Transfer Case Rear Shaft Speed Sensor Circuit FailureP1838Transmission Transfer Case Shift Motor Circuit FailureP1839Transmission Transfer Case Shift Motor Open CircuitP1840Transmission Transfer Case Shift Motor Short Circuit To BatteryP1841Transmission Transfer Case Shift Motor Short Circuit To GroundP1842Transmission Transfer Case Differential Lock-Up Feedback Switch Circuit FailureP1843Transmission Transfer Case Differential Lock-Up Feedback Switch Open CircuitP1844Transmission Transfer Case Differential Lock-Up Feedback Switch Short Circuit To BatteryP1845Transmission Transfer Case Differential Lock-Up Feedback Switch Short Circuit To GroundP1846Transmission Transfer Case Contact Plate ‘A’ Circuit FailureP1847Transmission Transfer Case Contact Plate ‘A’ Open CircuitP1848Transmission Transfer Case Contact Plate ‘A’ Short Circuit To BatteryP1849Transmission Transfer Case Contact Plate ‘A’ Short Circuit To GroundP1850Transmission Transfer Case Contact Plate ‘B’ Circuit FailureP1851Transmission Transfer Case Contact Plate ‘B’ Open CircuitP1852Transmission Transfer Case Contact Plate ‘B’ Short Circuit To BatteryP1853Transmission Transfer Case Contact Plate ‘B’ Short Circuit To GroundP1854Transmission Transfer Case Contact Plate ‘C’ Circuit FailureP1855Transmission Transfer Case Contact Plate ‘C’ Open CircuitP1856Transmission Transfer Case Contact Plate ‘C’ Short Circuit To BatteryP1857Transmission Transfer Case Contact Plate ‘C’ Short Circuit To GroundP1858Transmission Transfer Case Contact Plate ‘D’ Circuit FailureP1859Transmission Transfer Case Contact Plate ‘D’ Open CircuitP1860TCC PWM Solenoid Circuit Electrical/ Transmission Transfer Case Contact Plate ‘D’ Short Circuit To BatteryP1861Transmission Transfer Case Contact Plate ‘D’ Short Circuit To Ground

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