Symptom Chart
WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. 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
|
- Circuitry
- Positive battery cable
- Generator B+ circuit 38 (BK/OG) high resistance
- Engine, generator and battery grounds
- High key-off current drain(s)
- Battery
- Generator
|
|
- The charging system warning indicator is on with the engine running (the charging system voltage does not increase)
|
- Battery junction box (BJB) fuse 18 (10A)
- Circuitry
- Generator
- Powertrain control module (PCM)
|
|
- The charging system overcharges (battery voltage is greater than 15.5 volts)
|
- Circuitry
- Generator
- Powertrain control module (PCM)
|
|
- The charging system warning indicator is on with the engine running and the battery increases voltage
|
- Generator
- Instrument cluster
- Powertrain control module (PCM)
|
|
- The charging system warning indicator is off with the ignition switch in the RUN position and the engine off
|
- Instrument cluster
- Powertrain control module (PCM)
|
|
- The charging system warning indicator flickers or is intermittent
|
|
- INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER
for the removal and installation procedure.
|
|
|
- Loose bolts/brackets
- Drive belt
- Generator/pulley
|
|
|
|
- Generator
- In-vehicle entertainment system
|
|