AutoCodesVolkswagen – P1616 Volkswagen

P1616 Volkswagen Code - Glow Plug Warning Lamp Short To Positive

Quick Answer

P1616 Volkswagen indicates Glow Plug Warning Lamp Short To Positive. Common causes include Faulty Glow Plug Warning Lamp, Glow Plug Warning Lamp harness is open or shorted, Glow Plug Warning Lamp 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
P1616 Volkswagen indicates Glow Plug Warning Lamp Short To Positive.
Common causes
Common causes include Faulty Glow Plug Warning Lamp, Glow Plug Warning Lamp harness is open or shorted, Glow Plug Warning Lamp 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 3,298
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 01, 2019
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Code P1616 Volkswagen Description

OBDII Code P1616 Volkswagen - Glow Plug Warning Lamp Short To Positive - AutoCodes.com
P1616 Volkswagen Code - Glow Plug Warning Lamp Short To Positive

What are the Possible Causes of the DTC P1616 Volkswagen?

  • Faulty Glow Plug Warning Lamp
  • Glow Plug Warning Lamp harness is open or shorted
  • Glow Plug Warning Lamp circuit poor electrical connection

How to Fix the DTC P1616 Volkswagen?

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 P1616 Volkswagen 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.

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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 P1616 Volkswagen Code

1. What does the OBDII code P1616 mean on a Volkswagen?

P1616 indicates a "Glow Plug Warning Lamp Short to Positive," meaning there is an electrical issue with the glow plug warning lamp circuit in the vehicle.

2. What are the common symptoms of the P1616 code on a Volkswagen?

Symptoms may include the glow plug warning light staying on, failing to illuminate, or flickering. You might also experience difficulty starting the engine in cold weather.

3. What causes the P1616 code to appear?

The code is typically caused by a short circuit to positive in the glow plug warning lamp wiring, a faulty glow plug warning lamp, or a malfunctioning engine control module (ECM).

4. How do I diagnose the P1616 code on a Volkswagen?

Start by inspecting the wiring and connections for the glow plug warning lamp for signs of damage or corrosion. Use a multimeter to check for short circuits or excessive voltage in the circuit.

5. Can a blown fuse trigger the P1616 code?

No, a blown fuse is unlikely to directly cause this code, but it may indicate an underlying electrical issue that could relate to the circuit.

6. Is the P1616 code dangerous to drive with?

While it may not cause immediate danger, ignoring it can lead to starting issues, especially in cold climates, as the glow plugs are essential for diesel engine starts.

7. How is the P1616 code typically fixed?

Repairs may include fixing or replacing damaged wiring, replacing the glow plug warning lamp, or repairing/replacing the ECM if it’s determined to be faulty.

8. Can a faulty glow plug cause the P1616 code?

No, this code specifically relates to the glow plug warning lamp circuit, not the glow plugs themselves.

9. Will clearing the P1616 code with a scan tool fix the issue?

Clearing the code may temporarily turn off the warning, but the issue will return unless the underlying electrical problem is resolved.

10. How much does it cost to repair the P1616 code on a Volkswagen?

Repair costs vary depending on the issue, but fixing wiring or replacing the warning lamp is generally affordable, while ECM replacement can be more expensive, ranging from $500 to $1,500.

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