2010 Cadillac CTS Sedan AWD V6-3.6L Page 351
Control Module References (See: Testing and Inspection/Programming and Relearning) for radio replacement, setup, and programming
B1325
DTC B1325
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions)provides an overview of each diagnostic category.
DTC Descriptors
DTC B1325 03
- Device Power Circuit Voltage Below Threshold
DTC B1325 07
- Device Power Circuit Voltage Above Threshold
DTC B1325 4A
- Device Power Circuit Checksum Error - IPC
Diagnostic Fault Information
Circuit/System Description
The following control modules monitor the system voltage through the battery positive (B+) voltage circuits:
* Audio amplifier (AMP)
* HVAC control module (HVAC)
* Instrument panel cluster (IPC)
* Inflatable restraint sensing and diagnostic module (SDM)
* Inflatable restraint front passenger presence system (PPS)
* Object alarm module (RPA)
* Radio
* Remote control door lock receiver (RCDLR EK2)
* Pedestrian impact detection module
* TV antenna module (TVM)
Conditions for Running the DTC
* The voltages supplied to the control modules are in the range of 7-26 V.
* The ignition is ON.
Conditions for Setting the DTC
B1325 03
The control module detects a system voltage less than 9 V for 5 seconds.
B1325 07
The control module detects a system voltage greater than 18 V for 5 seconds.
B1325 4A
The instrument panel cluster (IPC) failed the power on checksum test, either due to low voltage or corrupted memory.
Action Taken When the DTC Sets
