Auto Highbeam Module (AHBM)

B210E-BATTERY VOLTAGE HIGH

For a complete wiring diagram, Refer to the Wiring Information.

- When Monitored:
With the ignition on.

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





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.

1. Turn the ignition on.
2. With the scan tool, read active PCM DTCs.

Does the scan tool display any active PCM DTCs?

Yes

- Testing and Inspection for the diagnostic test procedure.

No

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