Communications

B210E-BATTERY VOLTAGE HIGH - (FCM)

For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
With the ignition on.

- Set Condition:
Battery voltage greater than 16 volts for more than 15 seconds.





Diagnostic Test

1. CHECK FOR ANY POWERTRAIN CONTROL MODULES DTCS

NOTE: Make sure the Battery is in good condition. Using the Midtronics Battery Tester, test the Battery before continuing.

NOTE: Inspect the vehicle for after market accessories that may exceed the Generator System output.

NOTE: Make sure the generator drive belt is in good operating condition.

NOTE: Inspect the fuses in the IPM. If an open fuse is found, use the wire diagram/schematic as a guide, inspect the wiring and connectors for damage.

Turn the ignition on.
With the scan tool, read active PCM DTC's.
Does the scan tool display any active PCM DTC's?

Yes

- Diagnose and repair the DTC(s).

No

- Check the above conditions that can cause a high voltage condition. Repair as necessary.