OBD Guide
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B1745

Driver Seat Rear Up Switch Circuit

B1745 is an OBD-II diagnostic trouble code meaning: Driver Seat Rear Up Switch Circuit. Common causes: open or short circuit in switch circuit, seat lift switch malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Inability to adjust the angle of the rear driver's seat
  • The seat does not respond when the switch is pressed
  • Seat adjustment operates randomly

Causes

  • Open or short circuit in switch circuit
  • Seat lift switch malfunction
  • Oxidation of contacts in connectors
  • Problems with the seat control module
  • Wiring harness damage

How to Fix

  1. Check the integrity of the wiring harness and contacts
  2. Test the switch with a multimeter
  3. Clean contacts from oxidation
  4. Check the operation of the seat control module
  5. Replace faulty components

Related codes

B1740B1741B1746B1747

FAQ

What does the B1745 code mean?

B1745 is an OBD-II diagnostic trouble code that indicates: Driver Seat Rear Up Switch Circuit

What causes a B1745 error code?

The most common causes of B1745 include: Open or short circuit in switch circuit; Seat lift switch malfunction; Oxidation of contacts in connectors; Problems with the seat control module.

How do I fix a B1745 diagnostic trouble code?

To fix B1745: Check the integrity of the wiring harness and contacts. Test the switch with a multimeter. Clean contacts from oxidation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1745?

Do not drive — repair immediately

How much does it cost to fix B1745?

The estimated repair cost for B1745 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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