2010 Cadillac Truck SRX AWD V6-3.0L Page 474
replace the K9 BCM.
瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
4. Ignition ON, test for 4.8-5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the K9 BCM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
5. If all circuits test normal, test or replace the B18 battery current sensor.
B1516 66
1. Verify that the B18 battery current sensor is installed securely around the negative battery cable, with the tape tab pointing away from the
negative terminal on the C1 battery.
瀚慖f the B18 battery current sensor is not installed correctly, remove and reinstall the sensor properly.
2. Replace the B18 battery current sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Battery Positive and Negative Cable Replacement (LF1) (See: Starting and Charging/Battery/Battery Cable/Positive/Service and
Repair/Battery Positive and Negative Cable Replacement)Battery Positive and Negative Cable Replacement (LAU) (See: Starting and
Charging/Battery/Battery Cable/Positive/Service and Repair/Battery Positive and Negative Cable Replacement)
* 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
DTC B1517 07
- Battery Voltage Above Threshold
DTC B1517 5A
- Battery Voltage Plausibility Failure
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) has designated circuits for monitoring vehicle system voltage. The BCM monitors the system voltage to ensure
that the voltage stays within the proper range. Damage to components, and incorrect data may occur when the system voltage is out of range. The
BCM monitors the system voltage over an extended length of time.
Conditions for Running the DTC
* The BCM has power and ground.
