P2E76

Hybrid/EV Battery Pack Coolant Temperature Sensor D Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Hybrid system power reduction
Warning messages on the dashboard
Incorrect coolant temperature readings
Activation of emergency operation
Increased fuel consumption (for hybrids)

Causes

Battery coolant temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contacts or corrosion in connectors
Problems with the hybrid system control unit
Low coolant level in the system

How to Fix

Check the coolant level in the system
Inspect the sensor connectors and wiring for damage.
Check the resistance and signal of the temperature sensor
Replace the coolant temperature sensor if necessary
Check and, if necessary, update the software of the control unit

Related codes

P2E75 P2E77 P0A7F