AutoCodes – Mercury – U0106 Mercury

U0106 Mercury Code - Lost Communication With Glow Plug Control Module

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Glow Plug Control Module, Glow Plug Control Module harness is open or shorted, Glow Plug Control Module 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: U0106 Mercury indicates Lost Communication With Glow Plug Control Module.
Common causes: Common causes include Faulty Glow Plug Control Module, Glow Plug Control Module harness is open or shorted, Glow Plug Control Module 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 535

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 30, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0106 Mercury Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise.

OBDII Code U0106 Mercury - Lost Communication With Glow Plug Control Module - AutoCodes.com — U0106 Mercury Code - Lost Communication With Glow Plug Control Module

What does this mean?

What are the Possible Causes of the DTC U0106 Mercury?

Faulty Glow Plug Control Module
Glow Plug Control Module harness is open or shorted
Glow Plug Control Module circuit poor electrical connection

How to Fix the DTC U0106 Mercury?

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 U0106 Mercury 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 U0106 Mercury Code

1. What are the common symptoms of OBDII code U0106 (Lost Communication With Glow Plug Control Module) in a Mercury vehicle?

- Common symptoms include hard starting, rough idling, reduced engine power, and the illumination of the check engine light.

2. What are some possible causes of the U0106 code in a Mercury vehicle?

- Possible causes include a faulty glow plug control module, damaged wiring or connectors, a blown fuse, or a software issue in the vehicle's computer system.

3. How can I diagnose the U0106 code in my Mercury vehicle?

- Diagnosing the U0106 code typically involves using a professional OBDII scanner to retrieve the specific fault codes stored in the vehicle's computer system. Additionally, inspecting the wiring and connectors related to the glow plug control module is recommended.

4. Is it safe to continue driving my Mercury if the U0106 code is present?

- It is not recommended to continue driving your Mercury if the U0106 code is present, as it can lead to performance issues and potential damage to the engine over time. It is best to address the issue promptly.

5. Can I repair the U0106 code in my Mercury vehicle myself?

- While some DIY enthusiasts may attempt to address the U0106 code themselves by checking wiring connections and fuses, it is recommended to consult with a professional mechanic for proper diagnosis and repair.

6. How much does it typically cost to repair the U0106 code in a Mercury vehicle?

- Repair costs for the U0106 code can vary depending on the underlying cause of the issue. It is advisable to get a diagnostic from a qualified mechanic to determine the exact repair cost.

7. Will resetting the check engine light resolve the U0106 code in my Mercury?

- Resetting the check engine light may temporarily clear the code, but it will not fix the underlying issue causing the U0106 fault. It is important to address the root cause of the problem to prevent it from recurring.

8. Can a faulty glow plug control module cause other issues in my Mercury vehicle?

- Yes, a faulty glow plug control module can cause performance issues such as hard starting, rough idling, and reduced engine power. Ignoring the issue can lead to further damage to the engine.

9. How long does it take to repair the U0106 code in a Mercury vehicle?

- The repair time for the U0106 code can vary depending on the exact cause of the problem and the complexity of the repair. It is best to consult with a mechanic to get an estimate of the repair time.

10. Are there any preventive measures to avoid the U0106 code in my Mercury vehicle?

- Regular maintenance, such as checking the glow plug system during routine service appointments, can help prevent issues that may trigger the U0106 code.