Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSGMC2011SAVANA SPECIAL 4.8 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 11 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURES (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)DTC B1516 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)CIRCUIT/SYSTEM TESTING (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)
2011 GMC Savana Special 4.8 A
Circuit/System Testing (Battery, Charging System And Starting System)
2011 GMC Savana Special 4.8 ASECTION Circuit/System Testing (Battery, Charging System And Starting System)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 GMC Savana Special, 2010 GMC Savana Camper Special, 2010 GMC Savana, 2010 Chevrolet RV Cutaway, and 2010 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
B1516 08Β
- Ignition OFF, disconnect the harness connector at the battery current sensor.
- Ignition OFF and scan tool disconnected, open and close the driver door, and wait 1 minute. Test for less than 5 Ξ© between the low reference circuit terminal B and ground.
- If greater than specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the BCM.
- Ignition ON, test for 4.8-5.2 V between the 5-volt reference circuit terminal A and ground.
- If less than the specified range, test the 5-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests, normal replace the BCM.
- If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the circuit tests, normal replace the BCM.
- Ignition ON, test for 4.8-5.2 V between the signal circuit terminal C and ground.
- If 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 BCM.
- If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM.
- If all circuits test normal, test or replace the battery current sensor.
B1516 66Β
- Verify that the battery current sensor is installed securely around the negative battery cable, with the tape tab pointing away from the negative terminal on the battery.
- If the battery current sensor is not installed correctly, remove and reinstall the sensor properly.
- Replace the battery current sensor.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.