B1543

Seat Direction Switch Assembly Circuit Failure

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Seat adjustment forward and backward does not work
Seat direction switch does not respond
The malfunction indicator on the instrument panel lights up

Causes

Open or short circuit in the circuit
Seat direction switch malfunction
Wiring harness damage
Contact corrosion
Problems with the seat control unit

How to Fix

Check the continuity of the switch circuit
Inspect the switch for damage
Check the condition of the wiring harness
Clean contacts from corrosion
Replace switch or wiring harness if necessary

Related codes

B1540 B1541 B1542