Rear Air Suspension Control Module Diagnostic Trouble Code (DTC) Index

NOTE: If rear air suspension control module C2131b is disconnected before rear air suspension control module C2131a, DTCs B1830, C1770, C1790, and C1795 will be retrieved and must be cleared before an accurate list of continuous DTCs can be retrieved. The DTCs C1441 and C1442 will only be retrieved when running the VAPS functional test on the scan tool. The DTC C1897 will only be retrieved once per ignition switch cycle.

DTCs	DTC Caused By	Description	Action
B1317	Rear Air Suspension Control Module	Battery Voltage High	REFER to VEHICLE DYNAMIC SUSPENSION .
B1318	Rear Air Suspension Control Module	Battery Voltage Low	REFER to VEHICLE DYNAMIC SUSPENSION .
B1342	Rear Air Suspension Control Module	ECU Is Defective	REPLACE the rear air suspension control module. REFER to VEHICLE DYNAMIC SUSPENSION .TEST the system for normal operation.
C1441	Rear Air Suspension Control Module	Steering Sensor Channel A Circuit Failure	Go To PINPOINT TEST A .
C1442	Rear Air Suspension Control Module	Steering Sensor Channel B Circuit Failure	Go To PINPOINT TEST A .
C1722	Rear Air Suspension Control Module	Air Suspension Height Sensor Power Circuit Short to Power	REFER to VEHICLE DYNAMIC SUSPENSION .
C1723	Rear Air Suspension Control Module	Air Suspension Height Sensor Power Circuit Short to Ground	REFER to VEHICLE DYNAMIC SUSPENSION .
C1760	Rear Air Suspension Control Module	Air Suspension Rear Height Sensor High Signal Circuit Failure	REFER to VEHICLE DYNAMIC SUSPENSION .
C1763	Rear Air Suspension Control Module	Air Suspension Rear Height Sensor High Signal Circuit Short to Ground	REFER to VEHICLE DYNAMIC SUSPENSION .
C1765	Rear Air Suspension Control Module	Air Suspension Rear Height Sensor Low Signal Circuit Failure	REFER to VEHICLE DYNAMIC SUSPENSION .
C1768	Rear Air Suspension Control Module	Air Suspension Rear Height Sensor Low Signal Circuit Short to Ground	REFER to VEHICLE DYNAMIC SUSPENSION .
C1770	Rear Air Suspension Control Module	Air Suspension Vent Solenoid Output Circuit Failure	REFER to VEHICLE DYNAMIC SUSPENSION .
C1773	Rear Air Suspension Control Module	Air Suspension Vent Solenoid Output Circuit Short to Ground	REFER to VEHICLE DYNAMIC SUSPENSION .
C1790	Rear Air Suspension Control Module	Air Suspension LR Air Spring Solenoid Output Circuit Failure	REFER to VEHICLE DYNAMIC SUSPENSION .
C1793	Rear Air Suspension Control Module	Air Suspension LR Air Spring Solenoid Output Circuit Short to Ground	REFER to VEHICLE DYNAMIC SUSPENSION .
C1795	Rear Air Suspension Control Module	Air Suspension RR Air Spring Solenoid Output Circuit Failure	REFER to VEHICLE DYNAMIC SUSPENSION .
C1798	Rear Air Suspension Control Module	Air Suspension RR Air Spring Solenoid Output Circuit Short to Ground	REFER to VEHICLE DYNAMIC SUSPENSION .
C1813	Rear Air Suspension Control Module	Air Suspension Vent Request Exceeded Maximum Timing	REFER to VEHICLE DYNAMIC SUSPENSION .
C1818	Rear Air Suspension Control Module	Air Suspension Air Compressor Request Exceeded Maximum Timing	REFER to VEHICLE DYNAMIC SUSPENSION .
C1830	Rear Air Suspension Control Module	Air Suspension Compressor Relay Circuit Failure	REFER to VEHICLE DYNAMIC SUSPENSION .
C1832	Rear Air Suspension Control Module	Air Suspension Compressor Relay Circuit Short to Power	REFER to VEHICLE DYNAMIC SUSPENSION .
C1840	Rear Air Suspension Control Module	Air Suspension Switch Circuit Failure	REFER to VEHICLE DYNAMIC SUSPENSION .
C1842	Rear Air Suspension Control Module	Air Suspension Circuit Short to Power	REFER to VEHICLE DYNAMIC SUSPENSION .
C1897	Rear Air Suspension Control Module	Steering VAPS Circuit Loop Failure	Diagnose and repair as necessary.
U1041	ABS	SPC Invalid Or Missing Data for Vehicle Speed	PERFORM the ABS Self-Test.