Normal Operation
WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 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 output on circuit CPR56 (VT/BN) and ground on circuit RPR56 (GY/VT).
- DTC B236A (Chime Output Circuit Open) - This DTC will set when the LTM detects an open in the chime output circuit.
- DTC B2903 (Chime Output Circuit Short to Battery) - This DTC will set when the LTM detects a short to voltage in the chime output circuit.
- DTC B2940 (Chime Output Circuit Short to Ground) - This DTC will set 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 motor