Operation CHARM: Car repair manuals for everyone.

Left Rear Door Module






B210B - System Voltage High

For a complete wiring diagram, refer to.

When Monitored: At all times.

Set Condition: This code is a Bus message that the system input voltage of the vehicle is, or was, above 16 volts for over 15 seconds.






Test Step 1 - CHECK ENGINE DTCs

With the scan tool, read the active ENGINE DTCs.

Are there any BATTERY OR CHARGING SYSTEM DTCs present?

Yes

Perform the appropriate diagnostic procedure.

No

This code is a Bus message for information only. Check the charging system in accordance with the Service Information.