P1430
Brake System Vacuum Pump Activation Open Circuit/Short To Positive
Severity
🔴 HighCan you drive?
Do not drive — repair immediately
Approx. repair cost
$33–167 (est.)
Symptoms
- Check Engine Light Is On
- Deterioration in braking performance
- Unusual noises from the vacuum pump area
- Hard brake pedal
- Loss of vacuum in the brake system
Causes
- Broken wires in the vacuum pump circuit
- Short circuit to positive
- Faulty vacuum pump relay
- Fuse problems
- Malfunction of the vacuum pump itself
How to Fix
- Check the integrity of wires and connectors
- Check the condition of fuses and relays
- Test the operation of the vacuum pump
- Replace faulty components
- Reset the error code and check the system