P0CD8

Hybrid/EV Battery Pack Coolant Temperature Sensor B Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Hybrid battery overheating
Incorrect coolant temperature readings
Reduced performance of the hybrid system

Causes

Hybrid Battery Coolant Temperature Sensor Malfunction
Open or short circuit in the sensor circuit
Poor connection or corrosion of the sensor connector
Malfunction of the hybrid system control module
Problems with the hybrid battery cooling system

How to Fix

Check Hybrid Battery Coolant Temperature Sensor B
Check the integrity of the sensor circuit and connectors
Check the level and condition of the coolant
If necessary, replace the sensor or repair the circuit
Check the operation of the hybrid system control module

Related codes

P0CD7 P0CD9 P0CDA