Normal Operation
WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
The Vehicle Dynamics Module (VDM) controls the air spring solenoid by sending a voltage along circuit 1114 (BN/PK) for the LR solenoid and circuit 1115 (TN/WH) for the RR solenoid. This voltage engages the solenoid allowing air to either enter or leave the air spring. Ground for both solenoids is provided along circuit 57 (BK).
- C1790 LR Air Suspension Air Spring Solenoid Output Circuit Failure - With the ignition in the RUN position and during a deflate (vent) or inflate (pump) activity, if the VDM detects an open, a short to voltage or a short to ground on the LR air spring solenoid output circuit, DTC C1790 will be set.
- C1795 RR Air Suspension Air Spring Solenoid Output Circuit Failure - With the ignition in the RUN position and during a deflate (vent) or inflate (pump) activity, if the VDM detects an open, a short to voltage or a short to ground on the RR air spring solenoid output circuit, DTC C1795 will be set.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Air spring solenoid
- VDM