F 350 4WD Pickup V8-351 5.8L VIN H EFI (1997)
Charge Lamp/Indicator: Testing and Inspection
Testing
Normal Charge Indicator
With key off, charge indicator (battery symbol) lamp is off.
With key in RUN (engine not running), charge indicator (battery symbol) lamp is on.
With key in RUN (engine running), charge indicator (battery symbol) lamp is off.
1. If the charge indicator lamp does not light with the key in the RUN position (engine not running), check the I wiring circuit (ignition switch to
regulator 1 terminal), for an open circuit or burned-out charge indicator lamp.
2. If the charge indicator lamp does not light, disconnect the wiring plug connector at the regulator and connect a jumper wire from the I terminal of
the regulator wiring plug to the negative battery post cable clamp.
3. The charge indicator lamp should light when the key is turned to RUN (engine not running).
4. If the charge indicator bulb does not light, check the bulb for continuity and replace if necessary.
5. If the bulb is not burned out, an open circuit exists between the ignition switch and the voltage regulator.
6. Check the 500-ohm resistor across the charge indicator lamp.
For additional diagnosis and testing procedures, refer to Starting and Charging.
