OBD Guide

P00B2

Radiator Coolant Temperature Sensor Circuit Range/Performance

P00B2 is an OBD-II diagnostic trouble code meaning: Radiator Coolant Temperature Sensor Circuit Range/Performance. Common causes: faulty coolant temperature sensor, open or short circuit in wiring harness. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Engine overheating
  • Unstable cooling fan operation
  • Incorrect temperature readings on the dashboard

Causes

  • Faulty coolant temperature sensor
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • Problems with the engine control unit

How to Fix

  1. Check the condition of the sensor and its connector
  2. Check sensor resistance to specifications
  3. Inspect the wiring harness for damage
  4. Replace sensor if necessary
  5. Reset error and test drive

Related codes

Error P00B2 by Vehicle Brand

FAQ

What does the P00B2 code mean?

P00B2 is an OBD-II diagnostic trouble code that indicates: Radiator Coolant Temperature Sensor Circuit Range/Performance

What causes a P00B2 error code?

The most common causes of P00B2 include: Faulty coolant temperature sensor; Open or short circuit in wiring harness; Poor contact in the sensor connector; Problems with the engine control unit.

How do I fix a P00B2 diagnostic trouble code?

To fix P00B2: Check the condition of the sensor and its connector. Check sensor resistance to specifications. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P00B2?

Limited driving only, diagnose soon

How much does it cost to fix P00B2?

The estimated repair cost for P00B2 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat