P2E74

Hybrid/EV Battery Pack Coolant Temperature Sensor D Circuit

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine Light Is On
Hybrid system power reduction
Battery overheating
Incorrect coolant temperature readings
Reduced performance of the hybrid system

Causes

Open or short circuit in the sensor circuit
Coolant temperature sensor malfunction
Poor contact in sensor connectors
Wiring harness damage
Problems with the hybrid system control module

How to Fix

Check the integrity of the sensor circuit
Check resistance and sensor signal
Inspect connectors and wiring harness for damage
Replace the coolant temperature sensor if necessary
Check and update control module software if necessary

Related codes

P2E73 P2E75 P0A7F