Pinpoint Test U: The Keyless Entry Keypad Illumination Is Inoperative: Notes
WARNING: This page is about a different car, the 2023 Lincoln Nautilus. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Remote Keyless Entry and Alarm for schematic and connector information.
Normal Operations and Fault Conditions
REFER to: Handles, Locks, Latches and Entry Systems - System Operation and Component Description .
BCM DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B121A:11 | Keypad Illumination Output: Circuit Short To Ground | Sets when the BCM detects a short to ground from the keyless entry keypad illumination output circuit. |
| B121A:15 | Keypad Illumination Output: Circuit Short To Battery Or Open | Sets when the BCM detects an open from the keyless entry keypad illumination output circuit. |
Possible Causes
- Wiring, terminals or connectors
- Keyless entry keypad
- BCM
Visual Inspection and Diagnostic Pre-checks
- Inspect the front door window molding for damage.