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Volvo Fault Codes List: P1816 to P203711

Page 40 of 66 of the full Volvo fault code list (6,508 codes). Each entry is the code as the machine reports it and what the manufacturer data says it means.

Volvo codes P1816 to P203711

  • P1816Neutral safety switch circuit failure
  • P1817Neutral safety switch open circuit
  • P1818Neutral safety switch short to battery
  • P1819Neutral safety switch short to ground
  • P1820Transfer case shift relay coil circuit failure
  • P1821Transfer case shift relay coil open circuit
  • P1822Transfer case shift relay coil short to battery
  • P1823Transfer case shift relay coil short to ground
  • P18244WD clutch relay circuit failure
  • P18254WD clutch relay open circuit
  • P18264WD low clutch relay circuit to battery
  • P18274WD low clutch relay circuit to ground
  • P1828Transfer case shift relay coil circuit failure
  • P1829Transfer case shift relay coil open circuit
  • P1830Transfer case shift relay coil short to battery
  • P1831Transfer case shift relay coil short to ground
  • P1832Differential lock-up solenoid circuit failure
  • P1833Differential lock-up solenoid open circuit
  • P1834Differential lock-up solenoid short to battery
  • P1835Differential lock-up solenoid short to ground
  • P1836Transfer case front shaft speed sensor failure
  • P1837Transfer case rear shaft speed sensor failure
  • P1838Transfer case shift motor circuit failure
  • P1839Transfer case shift motor open circuit
  • P1840Transfer case shift motor short to battery
  • P1841Transfer case shift motor short to ground
  • P1842Differential lock-up feedback switch circuit failure
  • P1843Differential lock-up feedback switch open circuit
  • P1844Differential lock-up feedback switch short to battery
  • P1845Differential lock-up feedback switch short to ground
  • P1846Contact plate 'A' circuit failure
  • P1847Contact plate 'A' open circuit
  • P1848Contact plate 'A' short to battery
  • P1849Contact plate 'A' short to ground
  • P1850Contact plate 'B' circuit failure
  • P1851Contact plate 'B' open circuit
  • P1852Contact plate 'B' short to battery
  • P1853Contact plate 'B' short to ground
  • P1854Contact plate 'C' circuit failure
  • P1855Contact plate 'C' open circuit
  • P1856Contact plate 'C' short to battery
  • P1857Contact plate 'C' short to ground
  • P1858Contact plate 'D' circuit failure
  • P1859Contact plate 'D' open circuit
  • P1860TCC PWM solenoid circuit short to battery
  • P1861Contact plate 'D' short to ground
  • P1862Contact plate power circuit failure
  • P1863Contact plate power open circuit
  • P1864Contact plate power short to battery
  • P1865Contact plate power short to ground
  • P1866Transfer case system concern, servicing required
  • P1867Contact plate general circuit failure
  • P18684WD indicator circuit failure
  • P18694WD indicator circuit short to battery
  • P1870Transmission component slipping, circuit failure
  • P18714x4 switch circuit short to battery
  • P18724WD axle lock lamp circuit failure
  • P18734WD axle lock lamp circuit short to battery
  • P1874Hall effect sensor power circuit failure
  • P1875Hall effect sensor power short to battery
  • P18762WD solenoid circuit failure
  • P18772WD solenoid circuit short to battery
  • P1878Disengaged solenoid circuit failure
  • P1879Disengaged solenoid open circuit
  • P1880Disengaged solenoid short to battery
  • P1881Coolant level switch circuit failure
  • P1882Coolant level switch circuit short to ground
  • P1883Coolant level switch circuit failure
  • P1884Coolant level lamp circuit short to ground
  • P1885Disengaged solenoid short to ground
  • P18904WD mode select return input circuit failure
  • P1891Contact plate ground return open circuit
  • P1900OSS circuit intermittent malfunction
  • P1901TSS circuit intermittent malfunction
  • P1902Pressure control solenoid 'B' intermittent short
  • P1903Pressure control solenoid 'C' short circuit
  • P1904Pressure control solenoid 'C' open circuit
  • P1905Pressure control solenoid 'C' intermittent short
  • P1906Kickdown pull relay open or short circuit
  • P1907Kickdown hold relay open or short circuit
  • P1908Transmission pressure circuit solenoid issue
  • P1909Trans temp sensor circuit open or shorted
  • P1910VFS A pressure output failed low
  • P1911VFS B pressure output failed low
  • P1912VFS C Pressure Output Failed Low
  • P1913Pressure Switch A Circuit Malfunction
  • P1914Manually Shifted Automatic Sw Circuit Malfunction
  • P1915Reverse Switch Circuit Malfunction
  • P1916High Clutch Drum Speed Sensor Malfunction
  • P1917High Clutch Drum Speed Sensor Intermittent
  • P1918Transmission Range Display Circuit Malfunction
  • P200200Diesel Particulate Filter Efficiency Below Threshold (Bank 1)
  • P202D00Aftertreatment Reagent Pressure Leakage
  • P202D7AAftertreatment Reagent Pressure Leakage
  • P203111Exhaust Gas Temperature Sensor Bank 1 Sensor 2
  • P203115Exhaust Gas Temperature Sensor Bank 1 Sensor 2
  • P203164Exhaust Gas Temperature Sensor Bank 1 Sensor 2
  • P203200Exhaust Gas Temperature Circuit Low (Bank 1 Sensor 2)
  • P203701Reductant Injection Air Pressure Sensor "A"
  • P203711Reductant Injection Air Pressure Sensor "A"
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