AutoCodes – Generic – P16DB

P16DB Code - Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction

Quick Answer

The Powertrain Control Module (PCM) monitors the Electric Vacuum Pump Relays 1 And 2 Signal. Common causes include Faulty Electric Vacuum Pump Relays, Electric Vacuum Pump Relays harness is open or shorted, Electric Vacuum Pump Relays circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P16DB indicates Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction.
Common causes
Common causes include Faulty Electric Vacuum Pump Relays, Electric Vacuum Pump Relays harness is open or shorted, Electric Vacuum Pump Relays circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 4,320
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 10, 2020
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Code P16DB Description

The Powertrain Control Module (PCM) monitors the Electric Vacuum Pump Relays 1 And 2 Signal. The PCM sets the OBDII code when the Electric Vacuum Pump Relays 1 And 2 Signal is not to factory specifications.
OBDII Code P16DB - Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction - AutoCodes.com
P16DB Code - Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction

What are the Possible Causes of the DTC P16DB?

  • Faulty Electric Vacuum Pump Relays
  • Electric Vacuum Pump Relays harness is open or shorted
  • Electric Vacuum Pump Relays circuit poor electrical connection

How to Fix the DTC P16DB?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P16DB code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P16DB code?

Need more information on how to fix the P16DB code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P16DB code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P16DB Acura β€” Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction
  • P16DB Honda β€” Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P16DB Code

1. What are the common symptoms of OBDII code P16DB?

- Common symptoms include the check engine light illuminating on the dashboard, reduced engine performance, and potential issues with the braking system.

2. What causes the Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction (P16DB) code?

- The P16DB code is typically caused by damaged wiring, faulty electric vacuum pump relays, or a malfunction in the signal circuit.

3. How can I diagnose the Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction (P16DB) code?

- Diagnosis involves using an OBDII scanner to retrieve the code, checking the wiring and connectors for any visible damage, and testing the electric vacuum pump relays.

4. Can I drive my vehicle with the P16DB code present?

- It is not recommended to drive your vehicle with the P16DB code present, as it can lead to potential safety issues related to the braking system.

5. How do I repair the Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction (P16DB) code?

- Repairing the P16DB code may involve repairing or replacing damaged wiring, testing and replacing faulty relays, or addressing any signal circuit malfunctions.

6. Is the P16DB code a serious issue that requires immediate attention?

- Yes, the P16DB code should be addressed promptly to ensure the proper functioning of the braking system and overall vehicle performance.

7. Can I reset the P16DB code with an OBDII scanner?

- Yes, you can use an OBDII scanner to clear the P16DB code after addressing the underlying issue causing the malfunction.

8. Are there any DIY tips for troubleshooting the Electric Vacuum Pump Relays 1 And 2 Signal Circuit Malfunction (P16DB) code?

- DIY tips include visually inspecting the wiring and connectors, testing the relays with a multimeter, and consulting the vehicle's repair manual for specific troubleshooting steps.

9. How much does it cost to repair the P16DB code at a mechanic or dealership?

- The cost of repairing the P16DB code can vary depending on the extent of the issue, but it may include labor costs and the price of any replacement parts needed.

10. Can the P16DB code reoccur after being cleared?

- The P16DB code can reoccur if the underlying issue is not properly addressed, so it's important to thoroughly diagnose and repair the root cause to prevent future occurrences.

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