Possible Causes
WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
- Power supply circuit 1050 (LG/VT) (ignition feed)
- Power circuit 1003 (GY/YE) (B+ voltage at all times)
- Ground circuit 1205 (BK)
- TPMS module
- Scan tool
- Data link connector (DLC) and wiring