B1981 Battery Voltage Low - IPC

Diagnostic Chart:

Wiring Diagram:

Circuit Description:
Battery voltage is supplied to the IPC at connector C1 terminal "A1" and "B1." While the IPC is "awake." The battery voltage at Connector C1 terminal "A1" and "B1" is measured every 300 ms.

DTC Will Set When:
The IPC measures engine speed greater than 1300 RPM and voltage at the IPC connector C1 terminal "A1" and "B1." is less then 10 volts for 2 seconds.

Action Taken (By IPC):
The IPC will display "BATTERY VOLTS LOW." on the DIC. If voltage falls below approximately 9.0 volts, the IPC will then turn off all unneeded displays, CCP 54 volt output and Radio 16 volt output.