Test G: DTC C1883 (LR) and C1885 (RR) - Air Suspension Height Sensor Signal Circuit Failure
Test G: DTC C1883 (LR) and C1885 (RR) - Air Suspension Height Sensor Signal Circuit FailureRefer to Vehicle/Diagrams, Vehicle Dynamic Suspension for schematic and connector information.
Normal Operation
The 2 rear height sensors receive a 5-volt reference voltage from the air suspension module along circuit LCL12 (VT/OG), both sensors share a common return path along circuit RCL12 (GN/WH). The RR sensor sends the suspension height voltage back to the air suspension module along circuit VCL12 (WH/VT). The LR sensor sends the suspension height voltage back to the module along circuit VCL13 (BN/BU). The air suspension module monitors the 2 height sensors and makes adjustments to the rear suspension based on sensor input.
Possible Causes
^ Circuit open
^ Circuit shorted
^ Height sensor(s)
^ Air suspension module
G1-G2:
G2-G3:
G3-G4:
G5-G6:
G6-G7:
G7-G9:
