B1719 – Seat Driver Forward Switch Circuit Short To Battery

The ODBII code B1719 indicates a malfunction in the driver’s seat forward switch circuit, specifically that there is a short circuit to the battery, causing an electrical fault in the system.

The severity of ODBII code B1719 is moderate.

Common Causes For: B1718 Seat Driver Forward Switch Circuit Open

• Shorted wiring or connectors in the seat switch circuit.
• Faulty seat driver forward switch.
• Damaged or frayed wiring harness.
• Corrosion in electrical connections.
• Malfunctioning power seat module.
• Incorrectly installed aftermarket seat or components.

Common misdiagnosis for B1719 Seat Driver Forward Switch Circuit Short To Battery

• Faulty seat switch
• Wiring issues or shorts in the harness
• Malfunctioning seat control module
• Issues with the body control module (BCM)
• Problems with the power supply to the seat circuit
• Incorrectly installed or damaged seat components

Common Troubleshooting Steps

When dealing with OBD-II code B1719, which indicates a “Seat Driver Forward Switch Circuit Short To Battery,” there are several common troubleshooting steps you can follow to diagnose and potentially resolve the issue. Here’s a structured approach:

• Check the Code and Freeze Frame Data: Use an OBD-II scanner to confirm the presence of the B1719 code.
• Review freeze frame data to understand the conditions under which the code was set.
• Visual Inspection: Inspect the wiring and connectors associated with the driver’s seat switch. Look for:
• Damaged, frayed, or corroded wires.
• Loose or disconnected connectors.
• Signs of wear or shorting.
• Test the Seat Switch: Remove the seat switch from the vehicle.
• Use a multimeter to test the switch for continuity and proper operation.
• Check for any signs of internal damage or corrosion.
• Check for Short Circuits: With the switch disconnected, use a multimeter to check for continuity between the switch terminals and ground.
• Inspect the wiring harness for any shorts to battery voltage or ground.
• Inspect the Seat Control Module: If applicable, check the seat control module for faults. This may involve:
• Checking for any stored codes in the module.
• Inspecting the module for physical damage or corrosion.
• Test the Circuit: With the switch and module connected, use a multimeter to measure voltage at the switch while operating it.
• Ensure that the voltage readings are within the manufacturer’s specifications.
• Check for Other Related Codes: Look for any other related trouble codes that may provide additional context or indicate a broader issue.
• Repair or Replace Components: Based on your findings, repair any damaged wiring or connectors.
• Replace the seat switch or control module if they are found to be faulty.
• Clear the Codes and Test Drive: After making repairs, clear the trouble codes using the OBD-II scanner.
• Take the vehicle for a test drive to see if the code returns.
• Consult Service Manual: If the issue persists, consult the vehicle’s service manual for specific diagnostic procedures and wiring diagrams related to the seat switch circuit.1
• Seek Professional Help: If you are unable to resolve the issue, consider seeking assistance from a professional mechanic or automotive technician. By following these steps, you should be able to identify and address the cause of the B1719 code effectively.