OBD Guide
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B1835

Short in Curtain Shield Squib Left Circuit

B1835 is an OBD-II diagnostic trouble code meaning: Short in Curtain Shield Squib Left Circuit. Common causes: wiring harness damage, short circuit in wiring. Estimated repair cost: $111–333.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$111–333 (est.)

Symptoms

  • Airbag light is on
  • The side curtain airbags may not deploy in a crash.
  • Error B1835 in ECU memory

Causes

  • Wiring harness damage
  • Short circuit in wiring
  • Curtain air squib malfunction
  • Oxidation of contacts
  • Problems with the security ECU

How to Fix

  1. Visually inspect the wiring harness for damage
  2. Checking the resistance of the squib circuit
  3. Checking connector contacts for oxidation
  4. Checking the resistance of the squib itself
  5. If necessary, replace damaged wires or squib
  6. Error reset and system check

Related codes

B1836B1834B0100

FAQ

What does the B1835 code mean?

B1835 is an OBD-II diagnostic trouble code that indicates: Short in Curtain Shield Squib Left Circuit

What causes a B1835 error code?

The most common causes of B1835 include: Wiring harness damage; Short circuit in wiring; Curtain air squib malfunction; Oxidation of contacts.

How do I fix a B1835 diagnostic trouble code?

To fix B1835: Visually inspect the wiring harness for damage. Checking the resistance of the squib circuit. Checking connector contacts for oxidation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1835?

Do not drive — repair immediately

How much does it cost to fix B1835?

The estimated repair cost for B1835 is $111–333. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat