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Consumer Safety

Product Safety9,700+ CPSC product recalls Food Safety28,600+ FDA food recalls Pet Safety1.3M FDA animal adverse events Drug Safety17,500+ FDA drug recalls Device Safety38,400+ FDA device recalls Workplace Safety102,900+ OSHA injury reports Brand HistoryRecall lookup by company

Infrastructure

Bridge Safety624,000 bridge inspections Aviation Safety30,000+ NTSB aviation events Dam Safety92,600 dam safety records Water Safety433,000+ public water systems Railroad Safety438,000+ rail crossings Pipeline Safety8,800+ pipeline incidents State DashboardsSafety grades for all 50 states ZIP ReportAny 5-digit ZIP across 9 datasets

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Chassis Codes

1,008 OBD-II diagnostic trouble codes in this category.

Showing page 9 of 11 (1,008 codes total)

Code Description Subsystem Severity
C1719 Left Front Center Sensor Circuit Fault Chassis Control High
C1721 Air Suspension Height Sensor Power Circuit Open Suspension High
C1722 Air Suspension Height Sensor Power Circuit Short To Battery Suspension High
C1723 Air Suspension Height Sensor Power Circuit Short To Ground Suspension High
C1724 Air Suspension Height Sensor Power Circuit Failure Suspension High
C1725 Air Suspension Front Pneumatic Failure Suspension High
C1726 Air Suspension Rear Pneumatic Failure Suspension High
C1727 Air Suspension Reservoir Pneumatic Failure Suspension High
C1728 Transfer Case unable to transition between 2H and 4H Chassis Control High
C1729 Transfer Case unable to transition between 4H and 4L Chassis Control High
C1730 Reference Voltage Out of Range (+5 v) Chassis Control High
C1731 Air Suspension LF Corner Up Timeout Suspension High
C1732 Air Suspension LF Corner Down Timeout Suspension High
C1733 Air Suspension RF Corner Up Timeout Suspension High
C1734 Air Suspension RF Corner Down Timeout Suspension High
C1735 Air Suspension LR Corner Up Timeout Suspension High
C1736 Air Suspension LR Corner Down Timeout Suspension High
C1737 Air Suspension RR Corner Up Timeout Suspension High
C1738 Air Suspension RR Corner Down Timeout Suspension High
C1739 Right Front Center Sensor Circuit Short to Vbat Chassis Control High
C1740 Right Front Center Sensor Circuit Failure Chassis Control High
C1741 Right Front Center Sensor Circuit Fault Chassis Control High
C1742 Rear Sounder Circuit Failure Chassis Control High
C1743 Rear Sounder Circuit Short to Vbatt Chassis Control High
C1744 Front Sounder Circuit Failure Chassis Control High
C1745 Front Sounder Circuit Short to Vbatt Chassis Control High
C1748 Switch input Circuit Short to Gnd Chassis Control High
C1749 Trailer Input Circuit Failure Chassis Control High
C1750 Accelerator Position Sensor Out of Range Chassis Control High
C1751 Vehicle Speed Sensor # 1 Output Circuit Short to Vbatt Chassis Control High
C1752 Vehicle Speed Sensor # 1 Output Circuit Short to Gnd Chassis Control High
C1753 Hydraulic Clutch Actuator Valve Signal Fault Chassis Control High
C1754 Hydraulic Clutch Actuator Valve Circuit Failure Chassis Control High
C1755 Power Limit Shutdown Fault Chassis Control High
C1756 Air Suspension Front Height Sensor High (SE) Signal Circuit Failure Suspension High
C1757 Air Suspension Front Height Sensor High (SE) Signal Circuit Open Suspension High
C1758 Air Suspension Front Height Sensor High (SE) Signal Circuit Short To Battery Suspension High
C1759 Air Suspension Front Height Sensor High (SE) Signal Circuit Short To Ground Suspension High
C1760 Air Suspension Rear Height Sensor High (SE) Signal Circuit Failure Suspension High
C1761 Air Suspension Rear Height Sensor High (SE) Signal Circuit Open Suspension High
C1762 Air Suspension Rear Height Sensor High (SE) Signal Circuit Short To Battery Suspension High
C1763 Air Suspension Rear Height Sensor High (SE) Signal Circuit Short To Ground Suspension High
C1765 Air Suspension Rear Height Sensor Low Signal Circuit Failure Suspension High
C1766 Air Suspension Rear Height Sensor Low Signal Circuit Open Suspension High
C1767 Air Suspension Rear Height Sensor Low Signal Circuit Short To Battery Suspension High
C1768 Air Suspension Rear Height Sensor Low Signal Circuit Short To Ground Suspension High
C1770 Air Suspension Vent Solenoid Output Circuit Failure Suspension High
C1771 Air Suspension Vent Solenoid Output Circuit Open Suspension High
C1772 Air Suspension Vent Solenoid Output Circuit Short To Battery Suspension High
C1773 Air Suspension Vent Solenoid Output Circuit Short To Ground Suspension High
C1774 Coolant Temp Out of Range Chassis Control High
C1775 DC-DC Converter Failure Chassis Control High
C1776 Heater System Failure Chassis Control High
C1777 Vacuum Pressure Circuit Failure Chassis Control High
C1778 Power Steering Failure Steering Critical
C1779 Blower Switch Failure Chassis Control High
C1780 Temperature Select Failure Chassis Control High
C1781 Engine Coolant Temperature Signal Missing/Fault Chassis Control High
C1790 Air Suspension LR Air Spring/Shock Solenoid Output Circuit Failure Suspension High
C1791 Air Suspension LR Air Spring/Shock Solenoid Output Circuit Open Suspension High
C1792 Air Suspension LR Air Spring/Shock Solenoid Output Circuit Short To Battery Suspension High
C1793 Air Suspension LR Air Spring/Shock Solenoid Output Circuit Short To Ground Suspension High
C1795 Air Suspension RR Air Spring/Shock Solenoid Output Circuit Failure Suspension High
C1796 Air Suspension RR Air Spring/Shock Solenoid Output Circuit Open Suspension High
C1797 Air Suspension RR Air Spring/Shock Solenoid Output Circuit Short To Battery Suspension High
C1798 Air Suspension RR Air Spring/Shock Solenoid Output Circuit Short To Ground Suspension High
C1800 Air Suspension Reservoir Solenoid Circuit Failure Suspension High
C1805 Mismatched PCM and/or ABS-TC Module ABS Critical
C1813 Air Suspension LR Vent Request Exceeded Max Timing Suspension High
C1814 Air Suspension RR Vent Request Exceeded Max Timing Suspension High
C1818 Air Suspension LR Air Compress Request Exceeded Max Timing Suspension High
C1819 Air Suspension RR Air Compress Request Exceeded Max Timing Suspension High
C1820 Air Suspension RF Air Compress Request Exceeded Max Timing Suspension High
C1830 Air Suspension Compressor Relay Circuit Failure Suspension High
C1831 Air Suspension Compressor Relay Circuit Open Suspension High
C1832 Air Suspension Compressor Relay Circuit Short To Battery Suspension High
C1833 Air Suspension Compressor Relay Circuit Short To Ground Suspension High
C1834 Gauge Drive Current Fault Chassis Control High
C1835 Current Sense Circuit Failure Chassis Control High
C1836 Battery Temp out of Range Chassis Control High
C1837 Battery Heater Circuit Failure Chassis Control High
C1838 Charging System Fault Chassis Control High
C1839 Leakage Fault Chassis Control High
C1840 Air Suspension Disable Switch Circuit Failure Suspension High
C1841 Air Suspension Disable Switch Circuit Open Suspension High
C1842 Air Suspension Disable Switch Circuit Short To Battery Suspension High
C1843 Air Suspension Disable Switch Circuit Short To Ground Suspension High
C1844 Air Suspension Secondary Front Inflator Solenoid Output Circuit Failure Suspension High
C1845 Air Suspension Front Inflator Solenoid Output Circuit Failure Suspension High
C1846 Air Suspension Front Inflator Solenoid Output Circuit Open Suspension High
C1847 Air Suspension Front Inflator Solenoid Output Circuit Short To Battery Suspension High
C1848 Air Suspension Front Inflator Solenoid Output Circuit Short To Ground Suspension High
C1849 Master Cylinder Pressure Out of Range Chassis Control High
C1850 Air Suspension Warning Lamp Circuit Failure Suspension High
C1851 Air Suspension Warning Lamp Circuit Open Suspension High
C1852 Air Suspension Warning Lamp Circuit Short To Battery Suspension High
C1853 Air Suspension Warning Lamp Circuit Short To Ground Suspension High
C1854 Motor Temperature Out of Range Chassis Control High
C1855 Acceleration Position Sensor Conflict Chassis Control High
C1856 Traction Motor Encoder circuit Failure Stability Control High
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All OBD-II Categories

About Chassis Codes

This page lists all 1,008 OBD-II diagnostic trouble codes classified under the Chassis category. These codes are stored by your vehicle's onboard computer when a sensor detects a malfunction in the chassis system. Each code begins with a letter indicating the system (P for Powertrain, B for Body, C for Chassis, U for Network) followed by four digits that identify the specific fault.

When your check engine light comes on, an OBD-II scanner reads these stored codes to help pinpoint the problem. Generic codes (where the second digit is 0) follow the SAE J2012 standard and mean the same thing on every vehicle. Manufacturer-specific codes (where the second digit is 1) may have different meanings depending on the vehicle brand.

Click any code in the table above to see its full description, possible causes, common symptoms, and step-by-step repair guidance. Use the search box to quickly find a specific code within this category.