Pinpoint Test C : B12D8:11, B12D8:13: Notes
WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Power Mirrors for schematic and connector information.
Normal Operation and Fault Conditions
The IPMA supplies voltage and ground to the camera windshield defrost heater. The IPMA uses input from the front camera and the ambient air temperature data from the PCM to command the heater on and off. The heater may be commanded on if the ambient temperature is below 5°C (41°F).
Possible Sources
- Wiring, terminals or connectors
- IPMA
- Camera windshield defrost heater
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B12D8:11 | Mirror Heater Output: Circuit Short To Ground | Sets on-demand and in continuous memory in the IPMA if an excessive current draw is detected on the heater output circuit. |
| B12D8:13 | Mirror Heater Output: Circuit Open | Sets on-demand and in continuous memory in the IPMA if a lower than expected current draw is detected on the heater output circuit. |
Visual Inspection and Diagnostic Pre-Checks
Inspect the integrity of the wiring, terminals and connectors on the jumper harness between the vehicle harness and the camera windshield defrost heater.