P16DB
Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction
P16DB is an OBD-II diagnostic trouble code meaning: Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction. Common causes: vacuum pump relay malfunction, open or short circuit in control circuit. Estimated repair cost: $17–89.
Symptoms
- Check Engine Light Is On
- Deterioration of the brake booster
- Problems with the EGR system
- Unstable engine operation at idle
- Vacuum pump noise
Causes
- Vacuum pump relay malfunction
- Open or short circuit in control circuit
- Poor contact in connectors
- Vacuum pump malfunction
- Problems with the engine control unit
How to Fix
- Check the condition of the vacuum pump relay
- Check the integrity of wiring and connectors
- Measure the resistance of the pump winding
- Check voltage on control circuit
- If necessary, replace the relay or pump
Related codes
FAQ
What does the P16DB code mean?
P16DB is an OBD-II diagnostic trouble code that indicates: Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction
What causes a P16DB error code?
The most common causes of P16DB include: Vacuum pump relay malfunction; Open or short circuit in control circuit; Poor contact in connectors; Vacuum pump malfunction.
How do I fix a P16DB diagnostic trouble code?
To fix P16DB: Check the condition of the vacuum pump relay. Check the integrity of wiring and connectors. Measure the resistance of the pump winding. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P16DB?
Limited driving only, diagnose soon
How much does it cost to fix P16DB?
The estimated repair cost for P16DB is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat