B1167

Code

Generic B — Body

Front Passenger Seat Position Sensor Circuit Malfunction

Brand: Generic

Type: B — Body

Views: UK: 15 EN: 31 RU: 19

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Scan for DTCs, record freeze-frame and related codes (SRS, body, BCM)
Visual inspection of seat wiring, connectors and under-seat harness routing
Check relevant fuses and battery voltage with key ON
Backprobe sensor connector with seat in different positions and observe live data
Perform continuity and resistance checks on harness between sensor and module
Wiggle-testing wiring while observing live sensor data to reproduce fault

Typical sensor signal: variable analog voltage ~0.5–4.5 VDC across full travel (design dependent)
Open circuit: no measurable output or infinite resistance
Short to ground: ~0 V or close to 0 Ω to ground; short to battery: ~battery voltage
Typical sensor resistance (if potentiometer type): from a few hundred ohms to tens of kiloohms depending on design
Some vehicles use digital communication (LIN/CAN) to report seat position—verify protocol with factory data

Read and record DTC B1167 and any related codes using a compatible scan tool. Check freeze-frame and live data.
Perform a visual inspection: check under the passenger seat for damaged wiring, pinched harness, or loose connectors. Look for signs of water or corrosion.
Check fuses and measure battery voltage at the module connector with the ignition ON. Verify proper ground at seat/frame.
Backprobe the sensor connector and monitor the signal while moving the seat through its range. Verify the voltage changes smoothly (analog) or that expected messages appear (digital).
If the signal is missing or erratic, disconnect the sensor and measure resistance between sensor terminals (consult manufacturer spec if available). Check for short to ground or battery on signal wire.
Perform continuity check from sensor connector to the seat control/occupant classification module to detect opens/shorts. Wiggle the harness and seat while observing scans for intermittent faults.
If wiring and connector are good but sensor output is out of spec, replace the seat position sensor. If sensor replacement does not clear the fault, test or replace the seat module and recheck communications.
After repairs, clear DTCs and confirm fault does not return during functional test and normal seat operation. Re-run SRS/occupant classification system self-tests as required by manufacturer.