OBD Guide
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B1558

Ignition Run/Start Circuit Short To Ground

B1558 is an OBD-II diagnostic trouble code meaning: Ignition Run/Start Circuit Short To Ground. Common causes: wiring harness damage, ignition relay malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Problems starting the engine
  • Unstable engine operation
  • Stalling engine
  • Check Engine light comes on

Causes

  • Wiring harness damage
  • Ignition relay malfunction
  • Short circuit in ignition circuit
  • Problems with contacts in connectors

How to Fix

  1. Check wiring harness for damage
  2. Check the ignition relay and its circuit
  3. Check ignition circuit for short circuit
  4. Replace damaged components

Related codes

P0351P0352P0353P0354

FAQ

What does the B1558 code mean?

B1558 is an OBD-II diagnostic trouble code that indicates: Ignition Run/Start Circuit Short To Ground

What causes a B1558 error code?

The most common causes of B1558 include: Wiring harness damage; Ignition relay malfunction; Short circuit in ignition circuit; Problems with contacts in connectors.

How do I fix a B1558 diagnostic trouble code?

To fix B1558: Check wiring harness for damage. Check the ignition relay and its circuit. Check ignition circuit for short circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1558?

Limited driving only, diagnose soon

How much does it cost to fix B1558?

The estimated repair cost for B1558 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat