Symptom Chart
WARNING: This page is about a different car, the 2016 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
| Condition | Possible Sources | Action |
|---|---|---|
| All Dimmable non-networked illumination is inoperative | Refer to the Pinpoint Test | GO to Pinpoint Test A . |
| All Dimmable switch illumination is always on | Refer to the Pinpoint Test | GO to Pinpoint Test C . |
| All Dimmable illumination is inoperative | Refer to the Pinpoint Test | GO to Pinpoint Test B . |
| Dimmable illumination does not dim | Refer to the Pinpoint Test | GO to Pinpoint Test A . |
| The window control switch illumination is inoperative - Expedition only | Window control switch | CHECK the operation of the power windows. If the power windows operate correctly, INSTALL a new window control switch. REFER to Glass, Frames and Mechanisms . If the power windows do not operate correctly, REFER to Glass, Frames and Mechanisms . |
| The steering wheel switch illumination is inoperative or always on | Refer to the Pinpoint Test | GO to Pinpoint Test D . |
| One or more switch illumination is inoperative | Refer to the Pinpoint Test | GO to Pinpoint Test E . |
| Network controlled illumination does not dim | Medium Speed Controller Area Network(MS-CAN) BCM |
CARRY OUT the network test. If the scan tool responds with no communication with the BCM, REFER to Module Communications Network . If the scan tool communicates with the BCM, Refer to BCM Hardware Testing .. |
| The Instrument Panel Cluster(IPC) illumination is inoperative/does not dim | MS-CAN IPC |
CARRY OUT the network test. If the scan tool responds with no communication with the IPC, REFER to Module Communications Network . If the scan tool communicates with the IPC, Refer to IPC Hardware Testing |
| The Audio Front Control Module(ACM) illumination is inoperative/does not dim | MS-CAN ACM |
CARRY OUT the network test. If the scan tool responds with no communication with the ACM, REFER to Module Communications Network . If the scan tool communicates with the ACM, INSTALL a new ACM. Refer to the appropriate Information and Entertainment Systems article for the procedure.. |
| The HVAC module illumination is inoperative/does not dim | MS-CAN HVAC module |
CARRY OUT the network test. If the scan tool responds with no communication with the HVAC module, REFER to Module Communications Network . If the scan tool communicates with the HVAC module, INSTALL a new HVAC module. REFER to Climate Control . |
| The Rear Entertainment Module(RETM) illumination is inoperative/does not dim | MS-CAN RETM |
CARRY OUT the network test. If the scan tool responds with no communication with the RETM, REFER to Module Communications Network . If the scan tool communicates with the RETM, INSTALL a new RETM. Refer to the appropriate Information and Entertainment Systems article for the procedure.. |