OBD Guide
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B1973

Passenger Rear Seat Down Switch Circuit Short To Battery

B1973 is an OBD-II diagnostic trouble code meaning: Passenger Rear Seat Down Switch Circuit Short To Battery. Common causes: wiring harness damage, seat down switch malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • The passenger's rear seat lowering mechanism does not work
  • The security system malfunction indicator is on
  • Incorrect operation of airbags

Causes

  • Wiring harness damage
  • Seat down switch malfunction
  • Short circuit in the circuit
  • Problem in the control unit

How to Fix

  1. Check wiring harness for damage
  2. Check the seat down switch
  3. Check circuit for short circuit
  4. If necessary, replace faulty components
  5. Reset the error and check the system operation

Related codes

B1974B1975B1976

FAQ

What does the B1973 code mean?

B1973 is an OBD-II diagnostic trouble code that indicates: Passenger Rear Seat Down Switch Circuit Short To Battery

What causes a B1973 error code?

The most common causes of B1973 include: Wiring harness damage; Seat down switch malfunction; Short circuit in the circuit; Problem in the control unit.

How do I fix a B1973 diagnostic trouble code?

To fix B1973: Check wiring harness for damage. Check the seat down switch. Check circuit for short circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1973?

Do not drive — repair immediately

How much does it cost to fix B1973?

The estimated repair cost for B1973 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat