OBD Guide

B2159

Memory #1 Output Short To Ground

B2159 is an OBD-II diagnostic trouble code meaning: Memory #1 Output Short To Ground. Common causes: damaged wiring harness, short circuit in wiring. Estimated repair cost: $56–167.

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

Symptoms

  • Check Engine Light Is On
  • Possible problems starting the engine
  • Reduced engine performance
  • Malfunctions in electrical systems

Causes

  • Damaged wiring harness
  • Short circuit in wiring
  • Control unit malfunction
  • Corrosion of contacts or connectors
  • Grounding problems

How to Fix

  1. Checking the condition of the wiring harness for damage
  2. Inspection of connections and connectors
  3. Checking memory circuit resistance
  4. Diagnostics of the control unit condition
  5. If necessary, replace damaged components

Related codes

FAQ

What does the B2159 code mean?

B2159 is an OBD-II diagnostic trouble code that indicates: Memory #1 Output Short To Ground

What causes a B2159 error code?

The most common causes of B2159 include: Damaged wiring harness; Short circuit in wiring; Control unit malfunction; Corrosion of contacts or connectors.

How do I fix a B2159 diagnostic trouble code?

To fix B2159: Checking the condition of the wiring harness for damage. Inspection of connections and connectors. Checking memory circuit resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2159?

Limited driving only, diagnose soon

How much does it cost to fix B2159?

The estimated repair cost for B2159 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat