OBD Guide

B2850

Power Delivery Module Temperature Sensor

B2850 is an OBD-II diagnostic trouble code meaning: Power Delivery Module Temperature Sensor. Common causes: temperature sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Reduced engine performance
  • Check Engine Light Illuminates
  • Power supply module overheating
  • Unstable operation of the electrical system

Causes

  • Temperature sensor malfunction
  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • Power supply module failure
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the temperature sensor readings using an OBD-II scanner
  2. Inspect the wiring harness and connectors for damage.
  3. Check the resistance of the temperature sensor according to the manufacturer's specifications
  4. If necessary, replace the temperature sensor
  5. Check the operation of the power supply module after repair

Related codes

FAQ

What does the B2850 code mean?

B2850 is an OBD-II diagnostic trouble code that indicates: Power Delivery Module Temperature Sensor

What causes a B2850 error code?

The most common causes of B2850 include: Temperature sensor malfunction; Open or short circuit in wiring harness; Poor contact in connectors; Power supply module failure.

How do I fix a B2850 diagnostic trouble code?

To fix B2850: Check the temperature sensor readings using an OBD-II scanner. Inspect the wiring harness and connectors for damage.. Check the resistance of the temperature sensor according to the manufacturer's specifications. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2850?

Limited driving only, diagnose soon

How much does it cost to fix B2850?

The estimated repair cost for B2850 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat