B1316 – Battery Saver Relay Coil Circuit Short To Ground

The ODBII code B1316 indicates a short circuit in the battery saver relay coil circuit, which can cause the relay to malfunction and affect the vehicle’s electrical systems.

The severity of ODBII code B1316 is moderate.

Common Causes For: B1315 Battery Saver Relay Coil Circuit Short To Battery

• Shorted wiring or connectors
• Faulty battery saver relay
• Damaged or corroded ground connections
• Malfunctioning body control module (BCM)
• Electrical shorts in the vehicle’s wiring harness
• Faulty fuses or fuse box issues
• Improperly installed aftermarket accessories

Common misdiagnosis for B1316 Battery Saver Relay Coil Circuit Short To Ground

• Faulty battery
• Bad alternator
• Defective battery saver relay
• Wiring issues or shorts in the harness
• Faulty fuses
• Malfunctioning body control module (BCM)
• Incorrectly diagnosed electrical issues
• Grounding problems in the electrical system

Common Troubleshooting Steps

The OBD-II code B1316 indicates a problem with the battery saver relay coil circuit, specifically a short to ground. This code is often associated with issues in the vehicle’s electrical system, particularly in the battery saver relay circuit. Here are some common troubleshooting steps to diagnose and resolve this issue:

• Visual Inspection: **Check Wiring and Connectors: Inspect the wiring harness and connectors related to the battery saver relay for any signs of damage, fraying, or corrosion. Pay special attention to areas where the wiring may be exposed to heat or moisture.
• **Inspect the Relay: Check the battery saver relay itself for any signs of damage or corrosion.
• Test the Relay: **Swap the Relay: If possible, swap the battery saver relay with a similar relay in the vehicle to see if the problem persists. If the code clears, the relay may be faulty.
• **Bench Test the Relay: If you have the means, test the relay outside of the vehicle to ensure it operates correctly.
• Check for Shorts to Ground: **Use a Multimeter: With the vehicle off, use a multimeter to check for continuity between the relay coil circuit and ground. If there is continuity, there is likely a short to ground somewhere in the circuit.
• **Inspect Ground Connections: Ensure that all ground connections related to the battery saver relay are secure and free of corrosion.
• Check Power Supply: **Test Voltage: With the vehicle on, check the voltage at the relay coil terminals. Ensure that the relay is receiving the correct voltage as specified in the vehicle’s service manual.
• **Check Fuses: Inspect any fuses related to the battery saver relay circuit to ensure they are not blown.
• Scan for Additional Codes: **Check for Other Codes: Use an OBD-II scanner to check for any additional trouble codes that may provide more context or indicate related issues.
• Inspect Related Components: **Check for Other Faulty Components: Sometimes, other components in the circuit can cause issues. Inspect any associated sensors or modules that may be linked to the battery saver relay.
• Consult Wiring Diagrams: **Refer to Service Manual: Use the vehicle’s service manual to refer to wiring diagrams for the battery saver relay circuit. This can help identify other components that may be involved in the circuit.
• Clear Codes and Test Drive: **Clear the Code: After performing repairs, clear the trouble code using an OBD-II scanner.
• **Test Drive: Take the vehicle for a test drive to see if the code reappears.
• Seek Professional Help: If the issue persists after performing these steps, it may be necessary to consult a professional mechanic or technician who can perform more advanced diagnostics. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the B1316 code. Always ensure safety precautions are taken when working with the vehicle’s electrical system.