B1975 Passengers Seat Recline Back Switch Circuit Short to Battery

OBD2 Code: B1975

Description: Passengers seat recline back switch circuit short to battery.

Definition: This code indicates that there is a short circuit in the passengers seat recline back switch circuit, where the electrical current is unintentionally flowing directly from the battery, bypassing the intended path. This can cause malfunction of the seat adjustment feature and may lead to further electrical issues if not addressed.

B1975: Passenger’s seat recline back switch circuit short to battery
Severity: Moderate

Common Causes

B1975 – Passengers Seat Recline Back Switch Circuit Short to Battery

Common Causes:

• Faulty passengers seat recline back switch
• Short circuit in the wiring harness
• Faulty body control module (BCM)

Common Misdiagnosis

OBD2 Code: B1975

Description: Passenger’s Seat Recline Back Switch Circuit Short to Battery

Common Misdiagnosis: Replacing the seat recline switch without checking for wiring issues or short circuits in the harness.

Common Diagnostic Steps

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OBD2 Code: B1975

Description: Passenger’s Seat Recline Back Switch Circuit Short to Battery

• Inspect the passenger seat recline back switch for any visible damage or signs of wear.
• Check the wiring harness and connectors leading to the seat recline back switch for any signs of damage, corrosion, or loose connections.
• Use a multimeter to test for continuity in the circuit. Ensure there is no short to battery voltage present when the switch is not engaged.
• If equipped, check related fuses and relays associated with the seat adjustment system.
• Refer to the vehicle’s wiring diagram to trace and verify all connections within the circuit.
• If necessary, replace any damaged components such as wires, connectors, or switches that are causing a short circuit condition.
• Clear the code using an OBD2 scanner and test drive the vehicle to ensure that it does not return.