B3A1E

Battery Charger A Ground Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced voltage in the on-board network
Flashing or dimming of dashboard lights
Problems starting the engine
Battery low

Causes

Poor contact in the ground circuit
Corroded terminals or wires
Broken ground wire
Generator malfunction
Wiring harness damage

How to Fix

Check the condition of the battery terminals and clean if necessary
Inspect the ground wires for damage
Check the continuity of the ground circuit with a multimeter
Check generator operation
Replace damaged wires or connectors

Related codes

B3A1F P0562 P0563