OBD Guide
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B1983

Drivers Door Unlock Relay Circuit Short to Battery

B1983 is an OBD-II diagnostic trouble code meaning: Drivers Door Unlock Relay Circuit Short to Battery. Common causes: damage to door wiring, faulty unlock relay. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Driver's door won't unlock
  • Constant operation of the door lock drive
  • Low battery
  • Hot wiring in the door area

Causes

  • Damage to door wiring
  • Faulty unlock relay
  • Body Control Module (BCM) Problems
  • Short circuit in wiring harness

How to Fix

  1. Check the integrity of the wiring in the driver's door
  2. Check the unlock relay for short circuit
  3. Diagnose BCM for errors
  4. Replace damaged components

Related codes

B1980B1981B1982

FAQ

What does the B1983 code mean?

B1983 is an OBD-II diagnostic trouble code that indicates: Drivers Door Unlock Relay Circuit Short to Battery

What causes a B1983 error code?

The most common causes of B1983 include: Damage to door wiring; Faulty unlock relay; Body Control Module (BCM) Problems; Short circuit in wiring harness.

How do I fix a B1983 diagnostic trouble code?

To fix B1983: Check the integrity of the wiring in the driver's door. Check the unlock relay for short circuit. Diagnose BCM for errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1983?

Limited driving only, diagnose soon

How much does it cost to fix B1983?

The estimated repair cost for B1983 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat