P0C87

Hybrid/EV Battery Temperature Sensor G/H Correlation

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced power or efficiency of the hybrid system
Activation of emergency operation
Unusual battery temperature readings on the display
Reduced electric range

Causes

Temperature sensor G or H faulty
Damage to the wiring to the temperature sensors
Poor contact in sensor connectors
Problems with the Battery Management Module (BMS)
Corrosion or damage to components in the battery compartment

How to Fix

Check temperature sensor readings using a diagnostic scanner
Inspect the wiring and sensor connectors for damage
Check the resistance of temperature sensors
If necessary, replace the faulty temperature sensor
Test the battery management module
Repair only from an authorized dealer

Related codes

P0C88 P0C89 P0C8A