Symptom Chart
WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart
| Condition |
Possible Sources |
Action |
- The battery is discharged or battery voltage is low
|
- High key-off current drain(s)
- Engine, generator and battery grounds
- Positive battery cable
- Circuitry
- Battery
- Generator
|
|
- The charging system warning indicator is on with the engine running (the charging system voltage does not increase)
|
- Circuitry
- Voltage regulator
- Generator
|
|
- The charging system overcharges (battery voltage is greater than 15.5 volts)
|
- Circuitry
- Voltage regulator
- Generator
|
|
- The charging system warning indicator is on with the engine running and the battery increases voltage
|
- Circuitry
- Instrument cluster (IC)
- Voltage regulator
- Generator
|
|
- The charging system warning indicator is off with the ignition switch in the RUN position and the engine off
|
- Bulb
- Circuitry
- IC
- Voltage regulator
- Generator
|
|
- The charging system warning indicator flickers or is intermittent
|
- Corroded terminal(s)
- Fusible link(s)
- Circuitry
- Voltage regulator
- Generator
|
|
|
|
- Accessory drive belt
- Loose bolts/brackets
- Generator/pulley
|
|
|
|
- Generator
- Circuitry
- In-vehicle entertainment system
|
|