P0CEB

Hybrid/EV Electronics Coolant Pump A Control Circuit Low

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Overheating of electronic components
Error message on the dashboard
Cooling pump noise

Causes

Open or short circuit in the pump control circuit
Pump motor malfunction
Relay or fuse problems
Control unit malfunction
Poor contact in connectors

How to Fix

Check the pump circuit fuses and relays
Inspect the wiring harness for damage
Check the connectors of the pump and control unit
Test the resistance of the pump windings
Check the control signal from the control unit

Related codes

P0CEA P0CEC P0CED