Possible Causes
WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- Battery cables
- Low battery voltage
- Charging system
- Power and ground circuits to the PCM
- PCM relay
refer to PINPOINT TEST A - POWERTRAIN CONTROL MODULE (PCM) POWER RELAY to diagnose a voltage concern.