OBD-II Fault Code

B1699: Passenger's Seat Occupied Switch Circuit Short to Ground

Meaning, symptoms, likely causes, diagnostic checks and repair guidance for B1699.

System family

Body

Manufacturer-specific

Repair category

Electrical circuit / sensor

Use this category to narrow your checks before replacing parts.

Severity

Medium

Severity is a general guide. Confirm with scan-tool data and vehicle symptoms.

What B1699 usually means

Passenger's Seat Occupied Switch Circuit Short to Ground.

Common symptoms

Body/accessory warning lamp or feature not working

Likely causes

Wire shorted to chassis/ground; Internal component short

Diagnostic checks

Check related fuses, connectors, grounds and switch/module power supply; Inspect harness for rubbing/pinch points and check resistance to ground

Repair guidance

Repair insulation/harness damage or replace internally shorted component

Verification after repair

Operate the affected body/accessory system and rescan

Note: Confirm vehicle make/model/year because manufacturer-specific codes can vary; Manufacturer-specific: confirm definition and test steps in the vehicle service manual. A DTC identifies a circuit or system condition, not always the failed part.