OBD Guide
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B1A87

ESCL Unlock Control Circuit Short To Ground Or Open

B1A87 is an OBD-II diagnostic trouble code meaning: ESCL Unlock Control Circuit Short To Ground Or Open. Common causes: open or short circuit in wiring harness, escl solenoid malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Inability to unlock the steering column
  • The malfunction indicator on the dashboard lights up
  • Problems starting the engine

Causes

  • Open or short circuit in wiring harness
  • ESCL solenoid malfunction
  • Problems in the ESCL control unit
  • Corroded or damaged contacts

How to Fix

  1. Check wiring harness for damage
  2. Check the resistance of the ESCL solenoid
  3. Inspect contacts for corrosion
  4. Check ESCL control unit
  5. Replace faulty components

Related codes

B1A88B1A89B1A90

FAQ

What does the B1A87 code mean?

B1A87 is an OBD-II diagnostic trouble code that indicates: ESCL Unlock Control Circuit Short To Ground Or Open

What causes a B1A87 error code?

The most common causes of B1A87 include: Open or short circuit in wiring harness; ESCL solenoid malfunction; Problems in the ESCL control unit; Corroded or damaged contacts.

How do I fix a B1A87 diagnostic trouble code?

To fix B1A87: Check wiring harness for damage. Check the resistance of the ESCL solenoid. Inspect contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1A87?

Yes, but get it checked soon

How much does it cost to fix B1A87?

The estimated repair cost for B1A87 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat