Normal Operation
WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The power liftgate chime is controlled by the Liftgate/Trunk Module (LTM). To activate the chime, the LTM supplies a high frequency voltage and ground to the chime.
- DTC B236A (Chime Output Circuit Open) - a continuous and on-demand DTC that sets when the LTM detects an open in the chime output circuit.
- DTC B2903 (Chime Output Circuit Short to Battery) - a continuous and on-demand DTC that sets when the LTM detects a short to voltage in the chime output circuit.
- DTC B2940 (Chime Output Circuit Short to Ground) - a continuous and on-demand DTC that sets when the LTM detects a short to ground in the chime output circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Power liftgate chime (part of the LTM )
- LTM