B1699 Passengers Seat Occupied Switch Circuit Short to Ground

Definition: The B1699 code indicates a short to ground condition in the passenger seat occupied switch circuit. This means there is an electrical fault where the circuit is unintentionally connected to the ground, causing improper operation of the seat occupancy detection system.

B1699: Passengers seat occupied switch circuit short to ground

Severity: Moderate

Common Causes

B1699 – Passengers Seat Occupied Switch Circuit Short to Ground

• Short circuit in the passengers seat occupied switch circuit
• Faulty passengers seat occupied switch
• Wiring or connector issues in the passengers seat occupied switch circuit

Common Misdiagnosis

OBD2 Code: B1699

Description: Passengers Seat Occupied Switch Circuit Short to Ground

Common Misdiagnosis: Replacing the passenger seat sensor or switch without checking for wiring issues or connector problems.

Common Diagnostic Steps

OBD2 Code: B1699

Description: Passenger’s Seat Occupied Switch Circuit Short to Ground

• Inspect the passenger seat occupied switch for any visible damage or wear.
• Check the wiring and connectors associated with the passenger seat occupied switch for signs of corrosion, damage, or loose connections.
• Use a multimeter to test the continuity of the circuit and ensure there is no short to ground.
• If applicable, inspect related fuses and replace if necessary.
• Examine the vehicle’s control module for any stored codes that might indicate additional issues.
• If all components appear functional, consider replacing the passenger seat occupied switch itself.
• Clear any fault codes from the vehicle’s computer system and perform a test drive to verify that the issue has been resolved.