P0C48

Hybrid/EV Battery Pack Coolant Pump A Control Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Hybrid system power reduction
Battery overheat warning
Increased fuel consumption
Activation of emergency operation
Cooling pump noise

Causes

Battery cooling pump malfunction
Open or short circuit in control circuit
Wiring Harness Problems
Control module malfunction
Contact corrosion

How to Fix

Check battery cooling pump
Check the integrity of the control circuit
Inspect the wiring harness for damage
Check contacts for corrosion
Replace the pump if necessary

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