OBD Guide

P2558

Engine Coolant Level Sensor/Switch Circuit Low

P2558 is an OBD-II diagnostic trouble code meaning: Engine Coolant Level Sensor/Switch Circuit Low. Common causes: coolant level sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Low coolant level indicator is on
  • Incorrect coolant level readings on the dashboard
  • Check Engine Light Is On
  • Possible false signals about engine overheating

Causes

  • Coolant level sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Low coolant level in the system
  • Problems with the engine ECU

How to Fix

  1. Check the coolant level and add if necessary
  2. Inspect the wiring and connectors of the sensor for damage
  3. Check the resistance of the coolant level sensor
  4. If necessary, replace the coolant level sensor
  5. Check the continuity of the circuit from the sensor to the ECU

Related codes

Error P2558 by Vehicle Brand

FAQ

What does the P2558 code mean?

P2558 is an OBD-II diagnostic trouble code that indicates: Engine Coolant Level Sensor/Switch Circuit Low

What causes a P2558 error code?

The most common causes of P2558 include: Coolant level sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Low coolant level in the system.

How do I fix a P2558 diagnostic trouble code?

To fix P2558: Check the coolant level and add if necessary. Inspect the wiring and connectors of the sensor for damage. Check the resistance of the coolant level sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2558?

Limited driving only, diagnose soon

How much does it cost to fix P2558?

The estimated repair cost for P2558 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat