OBD Guide
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B1976

Passengers Seat Forward Switch Circuit Short To Battery

B1976 is an OBD-II diagnostic trouble code meaning: Passengers Seat Forward Switch Circuit Short To Battery. Common causes: damage to wire insulation in the switch circuit, short circuit inside the seat switch. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Incorrect operation of the electric front passenger seat
  • The seat does not move forward
  • Spontaneous seat movement without driver command
  • The seat system fault indicator is on

Causes

  • Damage to wire insulation in the switch circuit
  • Short circuit inside the seat switch
  • Seat wiring harness damaged
  • Contact corrosion
  • Problems in the seat control unit

How to Fix

  1. Visually inspect the seat wiring harness for damage.
  2. Check the resistance of the switch circuit
  3. Test the switch manually
  4. If necessary, replace the switch or damaged wires
  5. Clean contacts from corrosion
  6. Check the operation of the seat control unit

Related codes

B1975B1977B1978

FAQ

What does the B1976 code mean?

B1976 is an OBD-II diagnostic trouble code that indicates: Passengers Seat Forward Switch Circuit Short To Battery

What causes a B1976 error code?

The most common causes of B1976 include: Damage to wire insulation in the switch circuit; Short circuit inside the seat switch; Seat wiring harness damaged; Contact corrosion.

How do I fix a B1976 diagnostic trouble code?

To fix B1976: Visually inspect the seat wiring harness for damage.. Check the resistance of the switch circuit. Test the switch manually. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1976?

Limited driving only, diagnose soon

How much does it cost to fix B1976?

The estimated repair cost for B1976 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat