Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming
B1517
DTC B1517
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 B1517 03
- Battery Voltage Below Threshold - BCM
DTC B1517 07
- Battery Voltage Above Threshold - BCM
DTC B1517 5A
- Battery Voltage Plausibility Failure - BCM
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The body control module (BCM) has 2 circuits for monitoring vehicle system voltage. The BCM B+ is supplied to terminal 3 X3 by the BCM fuse,
and the high resolution B+ is supplied to the BCM terminal 10 X4 by the IPC fuse. The BCM monitors the system voltage on both circuits to ensure
that the voltage stays within the proper range. Damage to components, and incorrect data may occur when the voltage is out of range. If the BCM
detects the system voltage on the high resolution B+ circuit is outside the normal range, DTC B1517 will set.
Conditions for Running the DTC
The BCM is awake.
Conditions for Setting the DTC
B1517 03
The voltage of the high resolution B+ circuit is less than 11 volts for 2 minutes.
