P2C44

Battery Isolation/Voltage Stabilization Control Circuit Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$6–56 (est.)

Symptoms

Unstable operation of electrical equipment
Flashing or dimming of headlights
Low battery
Difficulty starting the engine
Check Engine Light Is On

Causes

Open or short circuit in the circuit
Faulty insulation monitoring relay
Damaged control unit
Fuse problems
Contact corrosion

How to Fix

Check the integrity of the circuit and wiring harness
Check the condition of the relays and fuses
Test the control unit
Clean contacts from corrosion
Replace damaged components

Related codes

P2C45 P2C46 P2C47