Circuit/System Description
WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
The following control modules monitor the system voltage through the battery positive (B+) voltage circuits:
- Audio amplifier (AMP)
- Auxiliary HVAC (AUX HVAC)
- Digital radio receiver (DRR)
- HVAC control module (HVAC)
- Instrument panel cluster (IPC)
- Memory seat module (MSM)
- Navigation radio (NAV)
- Passenger presence system (PPS)
- Object alarm module (RPA)
- Radio
- Remote Control Door Lock Receiver (RCDLR)
- TV antenna module (TVM)
- Vehicle direction alert alarm warning (VDAAW)
If any of the control modules listed detect that the battery voltage is out of range, it will set DTC B1325.