Category Archives: OBDII Powertrain Codes

P1818

P1818 OBD Code Definition:
P1818 TFP Valve Position Switch-Drive Without Drive Ratio
P1818 OBD Code Description: Continue reading

P1817

P1817 OBD Code Definition:
P1817 TFP Valve Position Switch-Reverse With Drive Ratio
P1817 OBD Code Description: Continue reading

P1821

P1821 OBD Code Definition:
P1821 Transmission transfer case clockwise shift relay coil Open circuit
P1821 OBD Code Description: Continue reading

P1822

P1822 OBD Code Definition:
P1822 Internal Mode Switch Circuit B High
P1822 OBD Code Description: Continue reading

P1825

P1825 OBD Code Definition:
Transmission Range Switch, Signals ‘A/B/C &P’ – Incorrect Signal
P1825 OBD Code Description: Continue reading

P1824

P1824 OBD Code Definition:
Transmission 4-wheel drive clutch relay circuit failure
P1824 OBD Code Description: Continue reading

P1828

P1828 OBD Code Definition:
P1828 Transmission transfer case counter clockwise shift relay coil circuit failure
P1828 OBD Code Description: Continue reading

P1827

P1827 OBD Code Definition:
P1827 Transmission 4-wheel Low clutch relay circuit to ground
P1827 OBD Code Description: Continue reading

P1826

P1826 OBD Code Definition:
P1826 Internal Mode Switch Circuit C High
P1826 OBD Code Description: Continue reading

P1830

P1830 OBD Code Definition:
Clutch Pedal Position Switch Override Relay – Circuit Malfunction
P1830 OBD Code Description: Continue reading

P1829

P1829 OBD Code Definition:
Transmission transfer case counter clockwise shift relay coil Open circuit
P1829 OBD Code Description: Continue reading

P1834

P1834 OBD Code Definition:
P1834 Transmission transfer case differetial lockup solenoid short circuit to battery
P1834 OBD Code Description: Continue reading

P1833

P1833 OBD Code Definition:
P1833 A/T Solenoids Power Circuit Low Voltage
P1833 OBD Code Description: Continue reading

P1832

P1832 OBD Code Definition:
P1832 Electronic Gear Selector Module: SHORT in circuit N15/5 output stage
P1832 OBD Code Description: Continue reading

P1831

P1831 OBD Code Definition:
P1831 PC Solenoid Power Circuit Low Voltage
P1831 OBD Code Description: Continue reading

P1840

P1840 OBD Code Definition:
P1840 Transmission transfer case shift motor short circuit to battery
P1840 OBD Code Description: Continue reading