AutoCodes – Mercury – P1862 Mercury

P1862 Mercury Code - Transmission Transfer Case Contact Plate Power Circuit Failure

Quick Answer

The Transmission Control Module (TCM) monitors the Transmission Transfer Case System. Common causes include Faulty Transfer Case Shift Motor, Transfer Case Shift Motor harness is open or shorted, Transfer Case Shift Motor 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: P1862 Mercury indicates Transmission Transfer Case Contact Plate Power Circuit Failure.
Common causes: Common causes include Faulty Transfer Case Shift Motor, Transfer Case Shift Motor harness is open or shorted, Transfer Case Shift Motor 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 1,057

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 Jan 31, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1862 Mercury Description

The Transmission Control Module (TCM) monitors the Transmission Transfer Case System. The TCM sets the OBDII code when the Transmission Transfer Case System is not to factory specifications.

OBDII Code P1862 Mercury - Transmission Transfer Case Contact Plate Power Circuit Failure - AutoCodes.com — P1862 Mercury Code - Transmission Transfer Case Contact Plate Power Circuit Failure

What does this mean?

What are the Possible Causes of the DTC P1862 Mercury?

Faulty Transfer Case Shift Motor
Transfer Case Shift Motor harness is open or shorted
Transfer Case Shift Motor circuit poor electrical connection

How to Fix the DTC P1862 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 P1862 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 P1862 Mercury Code

1. What are the common symptoms of OBDII code P1862 in a Mercury vehicle?

- Common symptoms include difficulty shifting gears, illuminated transmission warning light, and possible transmission slipping or jerking.

2. What can cause the OBDII code P1862 related to Transmission Transfer Case Contact Plate Power Circuit Failure in a Mercury?

- The code can be triggered by issues such as a faulty contact plate, damaged wiring harness, or a malfunctioning transfer case control module.

3. How serious is the OBDII code P1862 in a Mercury vehicle?

- This code should be addressed promptly as it can lead to transmission problems and potentially impact the vehicle's drivability and safety.

4. Can I continue driving my Mercury with the OBDII code P1862 present?

- It is not recommended to continue driving the vehicle with this code active, as it can cause further damage to the transmission system.

5. How can I diagnose the OBDII code P1862 in my Mercury?

- Diagnosing this code typically involves using a diagnostic scanner to retrieve the fault codes, conducting a visual inspection of wiring and components, and performing tests on the transfer case system.

6. What are some DIY repair tips for addressing the OBDII code P1862 in a Mercury?

- DIY repair tips may include checking and repairing damaged wiring, replacing the faulty contact plate, and resetting the transfer case control module.

7. Is it recommended to seek professional help for fixing the OBDII code P1862 in my Mercury?

- Due to the complexity of transmission and transfer case systems, it is advisable to seek professional help from a qualified mechanic or dealership for accurate diagnosis and repair.

8. How much does it typically cost to fix the OBDII code P1862 in a Mercury?

- Repair costs for this code can vary depending on the extent of the issue, but it may range from $200 to $800 or more, including parts and labor.

9. Can resetting the OBDII code P1862 in my Mercury make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces.

10. Are there any preventive measures to avoid encountering the OBDII code P1862 in a Mercury?

- Regular maintenance, including checking the transfer case components and wiring harness for wear or damage, can help prevent issues that may trigger the P1862 code.