OBD Guide
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B1648

Seat Driver Recline Forward Circuit Open

B1648 is an OBD-II diagnostic trouble code meaning: Seat Driver Recline Forward Circuit Open. Common causes: open or short circuit in wiring harness, tilt motor malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Inability to adjust the driver's seat forward
  • Driver's seat does not move when trying to adjust it
  • The malfunction indicator on the instrument panel lights up

Causes

  • Open or short circuit in wiring harness
  • Tilt motor malfunction
  • Damage to the seat adjustment mechanism
  • Seat control unit malfunction
  • Blown fuse or relay

How to Fix

  1. Check fuses and relays related to seat adjustment
  2. Inspect the wiring harness for damage or breaks.
  3. Check the operation of the tilt motor
  4. Diagnose the seat control unit for errors
  5. If necessary, replace faulty components

Related codes

B1649B1650B1651

FAQ

What does the B1648 code mean?

B1648 is an OBD-II diagnostic trouble code that indicates: Seat Driver Recline Forward Circuit Open

What causes a B1648 error code?

The most common causes of B1648 include: Open or short circuit in wiring harness; Tilt motor malfunction; Damage to the seat adjustment mechanism; Seat control unit malfunction.

How do I fix a B1648 diagnostic trouble code?

To fix B1648: Check fuses and relays related to seat adjustment. Inspect the wiring harness for damage or breaks.. Check the operation of the tilt motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1648?

Yes, but get it checked soon

How much does it cost to fix B1648?

The estimated repair cost for B1648 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat