P0A84

Hybrid/EV Battery Pack Cooling Fan 1 Control Circuit Low

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Battery overheating message on the instrument panel
Noisy operation or lack of operation of the cooling fan
Reduced range of an electric vehicle

Causes

Open or short circuit in fan control circuit
Fan motor malfunction
Fan control relay problems
Malfunction of the hybrid system control unit
Poor contact in control circuit connectors

How to Fix

Check the fan circuit fuse
Check the integrity of the wiring harness to the fan
Check the operation of the control relay
Test the fan motor
Scan the control unit for additional errors

Related codes

P0A85 P0A80 P0A7F