Test G: DTC C1883 (LR) and C1885 (RR) - Air Suspension Height Sensor Signal Circuit Failure

Pinpoint Test G: DTC C1883 (LR) and C1885 (RR) - Air Suspension Height Sensor Signal Circuit Failure
Refer 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 vehicle dynamics module (VDM) 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 VDM along circuit VCL12 (WH/VT). The LR sensor sends the suspension height voltage back to the module along circuit VCL13 (BN/BU). The VDM monitors the 2 height sensors and makes adjustments to the rear suspension based on sensor input.
^ DTC C1883 Air Suspension LR Height Sensor Circuit Failure - With the ignition in the RUN position, if the height sensor is reading less than 0.5 volt or more than 4.5 volts, DTC C 1883 will be set.
^ DTC C 1885 Air Suspension RR Height Sensor Circuit Failure - With the ignition in the RUN position, if the height sensor is reading less than 0.5 volt or more than 4.5 volts, DTC C 1885 will be set.

This pinpoint test is intended to diagnose the following:
^ Wiring, terminals or connectors
^ Height sensor(s)
^ VDM

G1-G2:

G2 (Continued)-G3:

G3 (Continued)-G4:

G5-G6:

G6-G7:

G8-G9: