P16DD
Electric Vacuum Pump Relay 1 Stuck On
P16DD is an OBD-II diagnostic trouble code meaning: Electric Vacuum Pump Relay 1 Stuck On. Common causes: faulty vacuum pump relay, short circuit in relay circuit. Estimated repair cost: $6–28.
Symptoms
- Constant noise from the vacuum pump
- Low battery
- Increased fuel consumption
- Vacuum pump overheating
- Check Engine Light Is On
Causes
- Faulty vacuum pump relay
- Short circuit in relay circuit
- Problems with wiring to the relay
- Engine control unit malfunction
- Mechanical fault of the vacuum pump
How to Fix
- Check vacuum pump relay
- Check relay control circuit for short circuit
- Check the wiring harness to the relay and pump
- If necessary, replace the relay
- Check the operation of the vacuum pump
Related codes
FAQ
What does the P16DD code mean?
P16DD is an OBD-II diagnostic trouble code that indicates: Electric Vacuum Pump Relay 1 Stuck On
What causes a P16DD error code?
The most common causes of P16DD include: Faulty vacuum pump relay; Short circuit in relay circuit; Problems with wiring to the relay; Engine control unit malfunction.
How do I fix a P16DD diagnostic trouble code?
To fix P16DD: Check vacuum pump relay. Check relay control circuit for short circuit. Check the wiring harness to the relay and pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P16DD?
Limited driving only, diagnose soon
How much does it cost to fix P16DD?
The estimated repair cost for P16DD is $6–28. Actual cost depends on your vehicle, location, and labor rates.
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