P1794

Battery Supply Circuit Malfunction

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$6–33 (est.)

Symptoms

Problems starting the engine
Unstable engine operation
Check Engine Light Is On
Power Loss
Malfunctions of electronic systems

Causes

Battery terminal corrosion
Loose or damaged connections
Faulty wiring harness
Relay or fuse problems
Generator malfunction

How to Fix

Check and clean battery terminals
Check connections and tighten if necessary
Inspect the wiring harness for damage
Check relays and fuses
Check generator operation

Related codes

Error P1794 by Vehicle Brand

Jaguar Kia Mazda Nissan