Table 1 shows two common electrical system related problems of the 1999 Ford Focus.
| Problem Category | Number of Problems |
|---|---|
| O2 Sensor problems | |
| Starter Solenoid problems |
: the contact stated while driving 45 mph on the highway the vehicle stalled without warning. It was restarted but stalled again. The vehicle was towed to an independent repair shop and later driven to the dealer. The dealer could not determine the problem. Updated 11/14/2006 - the failure a ay after the vehicle was purchased. Diagnostic testing was done on the vehicle. The codes indicated that the fuel level sensor, vehicle speed sensor, and O2 sensor was out, and the transmission control switch was out of range.
While placing the key in the ignition vehicle would not start. Consumer had the vehicle towed to the dealer for inspection. , and mechanic replaced solenoid switch.