2010 Cadillac Truck SRX AWD V6-3.0L Page 449

2010 Cadillac Truck SRX AWD V6-3.0L Page 449



* 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



Diagnostic Fault Information



Circuit/System Description



The following control modules monitor the system voltage through the battery positive (B+) voltage circuits:



* Headlamp control module



* Passenger presence detection module



* Seat heating control module (front)



* Seat heating control module (rear)



* Instrument cluster



* Parking assist control module



* Keyless entry control module



* Radio



* Inflatable restraint sensing and diagnostic module



* Steering column lock control module



* Trailer interface control module



* Mobile telephone control module



* Multimedia player interface module



* Rear audio control module



* Seat memory control module



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.



Action Taken When the DTC Sets



* The control module immediately disables all outputs when an out of range voltage condition has been detected, with the exception of serial



data, which is disabled after a 3 minute delay.



* The setting of other DTCs is inhibited.



Conditions for Clearing the DTC



The DTC passes when the malfunction is no longer present.

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