B1599 Passengers Seatback Autoglide Forward Switch Circuit Short to Ground

Definition: This code indicates a short circuit condition in the passenger’s seatback autoglide forward switch circuit, which is responsible for controlling the automatic movement of the seatback. The system has detected that there is an unintended electrical path to ground.

B1599 – Passengers Seatback Autoglide Forward Switch Circuit Short to Ground
Typical Severity: Moderate

Common Causes

B1599 – Passengers Seatback Autoglide Forward Switch Circuit Short to Ground

• Short circuit in the wiring harness
• Faulty passengers seatback autoglide forward switch
• Corrosion or poor connection in the electrical system

Common Misdiagnosis

OBD2 Code: B1599

Description: Passengers Seatback Autoglide Forward Switch Circuit Short to Ground

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

Common Diagnostic Steps

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OBD2 Code: B1599

Description: Passenger’s Seatback Autoglide Forward Switch Circuit Short to Ground

• Inspect the passenger seatback autoglide forward switch for any visible damage or wear.
• Check the wiring harness and connectors associated with the switch for signs of corrosion, damage, or disconnection.
• Use a multimeter to test for continuity in the circuit. Ensure there is no short to ground by checking resistance levels.
• If a short is detected, trace the wiring back to locate any points where insulation may be worn or damaged.
• Repair or replace any damaged wiring or connectors as necessary.
• If all wiring appears intact, test the switch itself for proper operation and replace if faulty.
• Clear the code from the vehicle’s computer system and perform a road test to ensure that it does not return.