| P1800 | Transmission Clutch Interlock Safety Switch Circuit Failure |
| P1801 | Transmission Clutch Interlock Safety Switch Open Circuit |
| P1802 | Transmission Clutch Interlock Safety Switch Short Circuit To Battery |
| P1803 | Transmission Clutch Interlock Safety Switch Short Circuit To Ground |
| P1804 | Transmission 4-Wheel Drive High Indicator Circuit Failure |
| P1805 | Transmission 4-Wheel Drive High Indicator Open Circuit |
| P1806 | Transmission 4-Wheel Drive High Indicator Short Circuit To Battery |
| P1807 | Transmission 4-Wheel Drive High Indicator Short Circuit To Ground |
| P1808 | Transmission 4-Wheel Drive Low Indicator Circuit Failure |
| P1809 | Transmission 4-Wheel Drive Low Indicator Open Circuit |
| P1810 | TFP Valve Position Switch Circuit/ Transmission 4-Wheel Drive Low Indicator Short Circuit To Battery |
| P1811 | Transmission 4-Wheel Drive Low Indicator Short Circuit To Ground |
| P1812 | Transmission 4-Wheel Drive Mode Select Circuit Failure |
| P1813 | Transmission 4-Wheel Drive Mode Select Open Circuit |
| P1814 | Transmission 4-Wheel Drive Mode Select Short Circuit To Battery |
| P1815 | Transmission 4-Wheel Drive Mode Select Short Circuit To Ground |
| P1816 | Transmission Neutral Safety Switch Circuit Failure |
| P1817 | Transmission Neutral Safety Switch Open Circuit |
| P1818 | Transmission Neutral Safety Switch Short Circuit To Battery |
| P1819 | Transmission Neutral Safety Switch Short Circuit To Ground |
| P1820 | Transmission Transfer Case Clockwise Shift Relay Coil Circuit Failure |
| P1821 | Transmission Transfer Case Clockwise Shift Relay Coil Open Circuit |
| P1822 | Transmission Transfer Case Clockwise Shift Relay Coil Short Circuit To Battery |
| P1823 | Transmission Transfer Case Clockwise Shift Relay Coil Short Circuit To Ground |
| P1824 | Transmission 4-Wheel Drive Clutch Relay Circuit Failure |
| P1825 | Transmission 4-Wheel Drive Clutch Relay Open Circuit |
| P1826 | Transmission 4-Wheel Drive Low Clutch Relay Circuit To Battery |
| P1827 | Transmission 4-Wheel Drive Low Clutch Relay Circuit To Ground |
| P1828 | Transmission Transfer Case Counter Clockwise Shift Relay Coil Circuit Failure |
| P1829 | Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit |
| P1830 | Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery |
| P1831 | Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Ground |
| P1832 | Transmission Transfer Case Differential Lock-Up Solenoid Circuit Failure |
| P1833 | Transmission Transfer Case Differential Lock-Up Solenoid Open Circuit |
| P1834 | Transmission Transfer Case Differential Lock-Up Solenoid Short Circuit To Battery |
| P1835 | Transmission Transfer Case Differential Lock-Up Solenoid Short Circuit To Ground |
| P1836 | Transmission Transfer Case Front Shaft Speed Sensor Circuit Failure |
| P1837 | Transmission Transfer Case Rear Shaft Speed Sensor Circuit Failure |
| P1838 | Transmission Transfer Case Shift Motor Circuit Failure |
| P1839 | Transmission Transfer Case Shift Motor Open Circuit |
| P1840 | Transmission Transfer Case Shift Motor Short Circuit To Battery |
| P1841 | Transmission Transfer Case Shift Motor Short Circuit To Ground |
| P1842 | Transmission Transfer Case Differential Lock-Up Feedback Switch Circuit Failure |
| P1843 | Transmission Transfer Case Differential Lock-Up Feedback Switch Open Circuit |
| P1844 | Transmission Transfer Case Differential Lock-Up Feedback Switch Short Circuit To Battery |
| P1845 | Transmission Transfer Case Differential Lock-Up Feedback Switch Short Circuit To Ground |
| P1846 | Transmission Transfer Case Contact Plate 'A' Circuit Failure |
| P1847 | Transmission Transfer Case Contact Plate 'A' Open Circuit |
| P1848 | Transmission Transfer Case Contact Plate 'A' Short Circuit To Battery |
| P1849 | Transmission Transfer Case Contact Plate 'A' Short Circuit To Ground |
| P1850 | Transmission Transfer Case Contact Plate 'B' Circuit Failure |
| P1851 | Transmission Transfer Case Contact Plate 'B' Open Circuit |
| P1852 | Transmission Transfer Case Contact Plate 'B' Short Circuit To Battery |
| P1853 | Transmission Transfer Case Contact Plate 'B' Short Circuit To Ground |
| P1854 | Transmission Transfer Case Contact Plate 'C' Circuit Failure |
| P1855 | Transmission Transfer Case Contact Plate 'C' Open Circuit |
| P1856 | Transmission Transfer Case Contact Plate 'C' Short Circuit To Battery |
| P1857 | Transmission Transfer Case Contact Plate 'C' Short Circuit To Ground |
| P1858 | Transmission Transfer Case Contact Plate 'D' Circuit Failure |
| P1859 | Transmission Transfer Case Contact Plate 'D' Open Circuit |
| P1860 | TCC PWM Solenoid Circuit Electrical/ Transmission Transfer Case Contact Plate 'D' Short Circuit To Battery |
| P1861 | Transmission Transfer Case Contact Plate 'D' Short Circuit To Ground |
| P1862 | Transmission Transfer Case Contact Plate Power Circuit Failure |
| P1863 | Transmission Transfer Case Contact Plate Power Open Circuit |
| P1864 | Transmission Transfer Case Contact Plate Power Short To Battery |
| P1865 | Transmission Transfer Case Contact Plate Power Short To Ground |
| P1866 | Transmission Transfer Case System Concern - Servicing Required |
| P1867 | Transmission Transfer Case Contact Plate General Circuit Failure |
| P1868 | Transmission Automatic 4-Wheel Drive Indicator (Lamp) Circuit Failure |
| P1869 | Transmission Automatic 4-Wheel Drive Indicator (Lamp) Circuit Short To Battery |
| P1870 | Transmission Component Slipping/ Transmission Mechanical Transfer Case 4x4 Switch Circuit Failure |
| P1871 | Transmission Mechanical Transfer Case 4x4 Switch Circuit Short To Battery |
| P1872 | Transmission Mechanical 4-Wheel Drive Axle Lock Lamp Circuit Failure |
| P1873 | Transmission Mechanical 4-Wheel Drive Axle Lock Lamp Circuit Short To Battery |
| P1874 | Transmission Automatic Hall Effect Sensor Power Circuit Failure |
| P1875 | Transmission Automatic Hall Effect Sensor Power Circuit Short To Battery / 4WD Low Switch Circuit Electrical |
| P1876 | Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Failure |
| P1877 | Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Short To Battery |
| P1878 | Transmission Transfer Case Disengaged Solenoid Circuit Failure |
| P1879 | Transmission Transfer Case Disengaged Solenoid Open Circuit |
| P1880 | Transmission Transfer Case Disengaged Solenoid Short to Battery |
| P1881 | Engine Coolant Level Switch Circuit Failure, GEM |
| P1882 | Engine Coolant Level Switch Circuit Short to Ground |
| P1883 | Engine Coolant Level Switch Circuit Failure, GEM |
| P1884 | Engine Coolant Level Lamp Circuit Short to Ground |
| P1885 | Transmission Transfer Case Disengaged Solenoid Short to Ground |
| P1886 | 4X4 Initialization Failure |
| P1890 | Transmission 4WD Mode Select Return Input Circuit Failure |
| P1891 | Transmission Transfer Case Contact Plate Ground Return Open Circuit |