AutoCodes – Mercury – P1A06 Mercury

P1A06 Mercury Code - Vehicle Mode Signal

Quick Answer

The Transmission Control Module (TCM) continuously monitors the Controlled Area Network (CAN) network for a vehicle mode message from the Powertrain Control Module (PCM). Common causes include Faulty Transmission Control Module (TCM), Faulty Powertrain Control Module (PCM). 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: P1A06 Mercury indicates Vehicle Mode Signal.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Faulty Powertrain Control Module (PCM).
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 807

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 Feb 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1A06 Mercury Description

The Transmission Control Module (TCM) continuously monitors the Controlled Area Network (CAN) network for a vehicle mode message from the Powertrain Control Module (PCM). This DTC is set when the received message does not match the actual vehicle mode.

OBDII Code P1A06 Mercury - Vehicle Mode Signal - AutoCodes.com — P1A06 Mercury Code - Vehicle Mode Signal

What does this mean?

What are the Possible Causes of the DTC P1A06 Mercury?

Faulty Transmission Control Module (TCM)
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1A06 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 P1A06 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 P1A06 Mercury Code

1. What does OBDII code P1A06 Mercury mean?

This code indicates an issue with the Vehicle Mode Signal in a Mercury vehicle.

2. What are common symptoms of OBDII code P1A06 in a Mercury?

Common symptoms include poor vehicle performance, reduced fuel efficiency, and possible stalling or hesitation during operation.

3. What are possible causes of OBDII code P1A06 in a Mercury?

Possible causes include a faulty vehicle mode switch, wiring issues, or a malfunctioning control module.

4. How can I diagnose the cause of OBDII code P1A06 in my Mercury?

To diagnose the issue, you may need to inspect the vehicle mode switch, check the wiring for any damage, and use a diagnostic tool to scan the control module for faults.

5. Can I still drive my Mercury with the P1A06 code present?

It is not recommended to drive your Mercury with the P1A06 code present, as it can lead to further damage and potential safety hazards.

6. How can I repair OBDII code P1A06 in my Mercury?

Repairing this code may involve replacing the faulty vehicle mode switch, repairing damaged wiring, or resetting the control module after addressing any underlying issues.

7. Will resetting the OBDII code P1A06 in my Mercury make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue is not resolved, the code is likely to reappear.

8. Can a mechanic help me fix OBDII code P1A06 in my Mercury?

Yes, a qualified mechanic with experience in diagnosing and repairing OBDII codes can help you address the underlying cause of the P1A06 code in your Mercury.

9. Are there any preventive measures to avoid OBDII code P1A06 in my Mercury?

Regular vehicle maintenance, such as checking and replacing faulty switches or wiring, can help prevent the occurrence of the P1A06 code in your Mercury.

10. Is OBDII code P1A06 specific to Mercury vehicles only?

While this code is associated with Mercury vehicles, similar issues related to the Vehicle Mode Signal may occur in other vehicle makes and models as well.