OBD Guide
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B2712

Gearshift Lock Circuit Low

B2712 is an OBD-II diagnostic trouble code meaning: Gearshift Lock Circuit Low. Common causes: open or short circuit in wiring harness, shift lock solenoid malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Inability to change gears without pressing the brake pedal
  • Check Engine Light Illuminates
  • Gear selector locked in 'P' position
  • Intermittent shift lock operation

Causes

  • Open or short circuit in wiring harness
  • Shift Lock Solenoid Malfunction
  • Lockout relay problems
  • Transmission control module (TCM) malfunction
  • Poor connection or corrosion in connectors

How to Fix

  1. Check wiring harness for damage
  2. Check resistance and voltage at lockout solenoid
  3. Inspect connectors for corrosion or poor contact.
  4. Check the operation of the blocking relay
  5. Replace solenoid or TCM if necessary

Related codes

B2710B2711B2713

FAQ

What does the B2712 code mean?

B2712 is an OBD-II diagnostic trouble code that indicates: Gearshift Lock Circuit Low

What causes a B2712 error code?

The most common causes of B2712 include: Open or short circuit in wiring harness; Shift Lock Solenoid Malfunction; Lockout relay problems; Transmission control module (TCM) malfunction.

How do I fix a B2712 diagnostic trouble code?

To fix B2712: Check wiring harness for damage. Check resistance and voltage at lockout solenoid. Inspect connectors for corrosion or poor contact.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2712?

Limited driving only, diagnose soon

How much does it cost to fix B2712?

The estimated repair cost for B2712 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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