P0D40

Battery Charger A Input Voltage Sensor A Circuit High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$17–89 (est.)

Symptoms

Check engine light is on
Recharging the battery
Increased voltage in the system
Electrical problems
Battery failure

Causes

Faulty generator
Problems with the voltage regulator
Open or short circuit in wiring
Faulty voltage sensor
Problems with the battery itself

How to Fix

Check generator voltage
Check voltage regulator
Inspect the wiring for damage
Check voltage sensor
Check battery status

Related codes

P0D41 P0D42 P0562