← Back to DiagCoach
B1170moderate severity✨ AI-generated

Power Seat Switch Input Circuit Failure

There's a fault in the power seat switch circuit.

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 is trying to detect if the power seat switch is working properly, but it's not getting the right signals from it. This could mean the switch itself is faulty or there's a wiring issue.

What the computer is actually seeing

The computer expects to see a voltage change when the switch is pressed, typically between 0V (off) and around 12V (on). If it sees a constant voltage or no voltage, it throws this code.

What a healthy reading looks like

When testing the switch with a multimeter, you should see a change in voltage from around 0V to 12V or higher when the switch is activated.

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.

  1. 1Check for any blown fuses related to the power seat circuit.
  2. 2Inspect the wiring and connectors at the power seat switch for damage or corrosion.
  3. 3Use a multimeter to check the voltage at the power seat switch connector; expect 12V when the switch is activated.
  4. 4If there's no voltage, trace wiring back to the module and check for continuity and ground connection.
  5. 5If the voltage is good but the seat doesn't move, replace the power seat switch.

Common causes

  • Faulty power seat switch
  • Damaged wiring between switch and computer
  • Poor ground connection for the seat switch
  • Corroded or loose connectors

Typical repair cost

$$

Related codes

Frequently asked questions

Is it safe to drive with this code?

Yes, it's safe to drive, but the power seat may not adjust until the issue is fixed.

Will this code come back after clearing?

If the underlying issue isn't fixed, the code will likely return.

Why does this code show up with other codes?

Bad wiring can cause multiple components to fail, leading to several fault codes.

Working a real vehicle right now?

Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.

Start guided diagnostic →
Report