Driver's Seat Position Sensor Circuit Range/Performance Problem
There's a problem with the driver's seat position sensor reading.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The computer can’t tell where your driver's seat is positioned because the seat position sensor isn’t sending the right signals, which means it can't adjust the seat properly or might not work in a crash.
What the computer is actually seeing
The seat position sensor normally outputs a voltage between 0.5V and 4.5V depending on the seat position. When it sees a reading that’s outside this range or fluctuating unexpectedly, it triggers the fault code B004F.
What a healthy reading looks like
Expected values from the seat position sensor should be stable within the range of 0.5V to 4.5V.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Inspect the wiring and connectors at the seat position sensor for damage or corrosion.
- 2 - If wiring or connector damage is found, repair or replace as necessary. Proceed to step 2 if not.
- 32. Measure the voltage at the seat position sensor connector while adjusting the seat.
- 4 - Expected output is between 0.5V and 4.5V. If outside range, replace the sensor. If within range, proceed to step 3.
- 53. Check the airbag control module for any fault codes related to the seat system.
- 6 - If additional codes are present, address them accordingly. If no other codes are present, replace the airbag control module.
Common causes
- Wiring issues between the seat position sensor and the airbag module
- Faulty seat position sensor
- Bad connector or corrosion at the seat sensor connection
- Faulty airbag control module
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, it's drivable but the seat may not adjust properly, and airbag deployment could be affected in a crash.
Will this code come back after clearing?
If the underlying issue isn’t fixed, the code will typically return after clearing.
Why does this code show up with other codes?
It often appears with other seat-related codes if the sensor is malfunctioning, affecting multiple systems.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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