What does code 13 mean?

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Code 13 has different meanings depending on the context, most commonly representing a vehicle sensor fault, a police or emergency distress signal, or a generic software error.

Common Meanings of Code 13

  • Vehicle Diagnostics (OBD/Engine Codes): Indicates a fault in a sensor circuit, such as an oxygen sensor, coolant temperature sensor, or intermittent communication error.
  • Police and Emergency Signals: Often used as a high-priority signal (like Signal 13) indicating an officer in distress or needing immediate assistance. In some regional 10-codes, 10-13 translates to weather or road conditions.
  • Software and Hardware Logs: Appears as a return status, access restriction, or device error code depending on the specific manufacturer's system documentation.

What is a 13 in police code?

A 13 in police radio codes typically refers to "Weather and Road Conditions" under standard APCO guidelines, but in major departments like the New York City Police Department (NYPD), 10-13 means an officer needs emergency help right away.

Meanings by Region

  • Standard / APCO 10-Code: Weather and Road Conditions (asking or reporting on the state of the weather/roads).
  • NYPD / Major Metro Code (10-13): Officer needs assistance or emergency help immediately.
  • Local Department Variations: Because police codes are not universal, some individual jurisdictions use "Signal 13" or "10-13" for completely different local status updates or routine checks.

What does GM code 13 mean?

On General Motors (GM) vehicles using older OBD-I diagnostic systems, Code 13 means the oxygen (O₂) sensor circuit is open or has no signal activity.

What Code 13 Means

The oxygen sensor checks the amount of oxygen in your exhaust gases. It tells your car's computer (ECM) if the engine is running too rich (too much fuel) or too lean (not enough fuel).

Code 13 sets when the computer sees that the oxygen sensor voltage stays completely flat (usually stuck between 0.35 and 0.55 volts) for a set time instead of fluctuating up and down like it should.

Common Symptoms

  • Rough idling or engine hesitation
  • Lower fuel economy
  • Black smoke from the exhaust (if running rich) or a lack of power (if running lean)
  • Sometimes, no noticeable change in how the car drives at all

Common Causes

  • A worn-out oxygen sensor: The sensor itself has failed and stopped sending a proper signal.
  • Wiring or connector problems: The wire running from the computer to the oxygen sensor is broken, loose, or corroded.
  • Exhaust leaks: A leak near the front of the exhaust can let outside air in, tricking the sensor into reading a false lean signal.

You can read more detailed diagnostic steps on sites like RepairPal's GM Code 13 Guide.

What does error code 13 mean?

Error code 13 most commonly means a limit circuit lockout or overheating issue in home heating systems like gas furnaces, though its meaning varies depending on the appliance or system.

Most users on r/hvacadvice agree that a furnace error code 13 indicates the system has overheated and shut down for safety.

Furnace and Heating Systems (Carrier, Bryant, Payne)

  • Meaning: A limit switch or rollout switch has tripped because the furnace got too hot.
  • Common Causes:
    • Dirty or clogged air filters blocking airflow.
    • Closed or blocked room air vents.
    • A failing blower motor or dirty blower wheel.
    • A blocked exhaust vent or flue pipe.
  • Basic Fixes: Check and replace your air filter, ensure all return and supply vents are open, and reset the power to the furnace.

Tankless Water Heaters (Rheem and others)

  • Meaning: A problem with the combustion system, ignition failure, or faulty flame sensing.
  • Common Causes: Blocked exhaust vents, restricted air intake, or an unstable gas supply.

Other Systems

  • Software or Apps: Can point to local cache conflicts or communication timeouts (such as browser-side image upload errors).

What does code 13 mean at Winn Dixie?

At Winn-Dixie, a Code 13 generally means an all-departments trash run, signaling employees to empty and clear out the trash bins across the store.

Intercom Codes Overview

  • Code 13: All departments trash collection.
  • Code 1: Front end is busy.
  • Code 2: Manager override needed.
  • Code 9: Suspicious person.

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What is the cop code for dead?

The police and emergency code for a dead person is most commonly DOA (Dead on Arrival), though specific numerical radio codes vary by region and agency.

Common Codes for a Deceased Person

  • DOA: Widely used plain language meaning "Dead on Arrival".
  • 10-67: Frequently used in many jurisdictions to report a death.
  • 10-54: Used by some patrols for a possible dead body or fatal accident.
  • 10-55 / 10-66: Often designated as a coroner's case or notification to the medical examiner.
  • 11-44: Used in California and other regions utilizing 11-codes to indicate a deceased person requiring a coroner.
  • Signal 7: Used by select local or state agencies as a specific signal for a dead person.

Because radio codes are not standardized nationwide, meanings shift significantly between different state and city police departments.

What does 1013 mean in cop code?

The number 1013 (or 10-13) means different things depending on whether you are talking about a standard police radio ten-code or a specific state mental health law.

  • Officer Needs Assistance (Radio Code): In many major jurisdictions—most notably the NYPD in New York City—the radio code 10-13 means an officer needs help (often urgent or life-threatening assistance, or an officer down/in trouble). In other random or older municipal ten-code systems, it can occasionally mean reporting "weather or road conditions" or "existing conditions".
  • Involuntary Mental Health Commitment (Georgia Law): In the state of Georgia, a "1013" (often confused with a police ten-code) is actually a legal term and medical form used for involuntary emergency psychiatric transport and evaluation. It allows law enforcement or medical professionals to temporarily detain and transport a person to a crisis center if a clinician or officer determines they are an imminent danger to themselves or others.

What is code 13?

Code 13 has different meanings depending on the industry, ranging from a retail supply chain overcharge to automotive diagnostics or entertainment.

Retail and Grocery

  • Walmart Overcharge: In retail supply chains like Walmart Code 13, it refers to a substitution overcharge. This happens when an invoiced item differs from the product actually received and costs more.
  • Grocery Store Intercom: In some supermarkets (such as older regional grocery chains), staff may use "Code 13" as an internal shorthand for specific floor tasks, cleanup requests, or price checks.

Programming and Diagnostics

  • UDS Negative Response Code: In automotive engineering using Unified Diagnostic Services (UDS), NRC 13 stands for "incorrect message length or invalid format," indicating a mismatch between the declared data length and the actual bytes sent.
  • Exit Code: In general computing or software environments, exit code 13 often points to an internal failure, permission block, or configuration error.

Entertainment

  • South African TV Series: Code 13 is a crime-action television drama series following a specialized police task force tracking down dangerous criminals.

What does Yamaha fault code 13 mean?

Yamaha error code 13 indicates an open or short circuit detected in the intake air pressure sensor (also known as the Manifold Absolute Pressure or MAP sensor).

Common Symptoms

  • The engine may still start and run, though drivability can be affected.
  • Possible rough idling, misfiring, or hesitation during acceleration.
  • On some models, the bike may refuse to start if the sensor signal is completely lost.

Potential Causes

  • Loose or corroded wiring plug/coupler connected to the intake pressure sensor.
  • Dirt, grease, or moisture built up in the electrical connector.
  • Filter oil contamination (common on dirt bikes or off-road models when excess air filter oil gets pulled into the intake tract).
  • A damaged or faulty pressure sensor requiring replacement.

Troubleshooting Steps

  1. Locate the intake air pressure sensor on your model's throttle body or intake manifold.
  2. Unplug the electrical connector and inspect it for dirt, water, corrosion, or loose pins.
  3. Clean the plug using electrical contact cleaner and dry it thoroughly.
  4. Check the sensor wiring harness for any broken, frayed, or pinched wires leading back to the ECU.
  5. Inspect your air filter; if it is over-oiled, clean the intake tract and sensor tip.

What codes will a bad 02 sensor cause?

A bad oxygen (O2) sensor typically triggers OBD-II diagnostic trouble codes in the P0130 through P0167 range, as well as general fuel trim and catalyst efficiency codes.

Upstream O2 Sensor Codes (Before Catalytic Converter)

These sensors control the active air-fuel ratio:

  • P0130 / P0150: O2 Sensor Circuit Malfunction (Bank 1 or Bank 2)
  • P0131 / P0151: O2 Sensor Low Voltage – Indicates a lean fuel mix
  • P0132 / P0152: O2 Sensor High Voltage – Indicates a rich fuel mix
  • P0133 / P0153: O2 Sensor Slow Response – The sensor is aging and reacting too slowly
  • P0134 / P0154: O2 Sensor No Activity Detected – Dead sensor or broken wiring
  • P0135 / P0155: O2 Sensor Heater Circuit Malfunction

Downstream O2 Sensor Codes (After Catalytic Converter)

These sensors monitor catalyst efficiency:

  • P0137 / P0157: O2 Sensor Low Voltage
  • P0138 / P0158: O2 Sensor High Voltage
  • P0140 / P0160: O2 Sensor No Activity Detected
  • P0141 / P0161: O2 Sensor Heater Circuit Malfunction

Associated Fuel Trim & Catalyst Codes

A bad sensor can also cause secondary codes because it misreads the exhaust:

  • P0171 / P0174: System Too Lean (Bank 1 or Bank 2)
  • P0172 / P0175: System Too Rich (Bank 1 or Bank 2)
  • P0420 / P0430: Catalyst System Efficiency Below Threshold

Note: An O2 code does not always mean the sensor itself is dead. Vacuum leaks, exhaust leaks, or wiring issues can send identical bad data to your car's computer. You can read more about troubleshooting these errors in the Walker Products O2 Sensor Guide.