P2D2B

Hybrid/EV Battery Pack Coolant Temperature Sensor A/B Correlation

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Reduced performance of the hybrid system
Increased fuel consumption in hybrid models
Reduced motor power
Warning message on dashboard
Activation of emergency operation

Causes

Malfunction of one of the temperature sensors
Problems with wiring or sensor contacts
Low coolant level
Cooling system is dirty or clogged
Problems with the battery management module

How to Fix

Check the level and condition of the coolant
Test both temperature sensors
Check the integrity of wiring and contacts
Clean the cooling system if necessary
Replace faulty temperature sensors

Related codes

P2D2A P2D2C P0A80