AutoCodes – Dodge – P0959 Dodge

P0959 Dodge Code - Auto Shift Manual Mode Circuit Intermittent

Quick Answer

The Transmission Control Module (TCM) monitors the Auto Shift Manual signal from the Auto Shift Manual Switch. Common causes include Faulty Auto Shift Manual Switch, Auto Shift Manual Switch harness is open or shorted, Auto Shift Manual Switch 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: P0959 Dodge indicates Auto Shift Manual Mode Circuit Intermittent.
Common causes: Common causes include Faulty Auto Shift Manual Switch, Auto Shift Manual Switch harness is open or shorted, Auto Shift Manual Switch 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 2,792

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 May 11, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0959 Dodge Description

The Transmission Control Module (TCM) monitors the Auto Shift Manual signal from the Auto Shift Manual Switch. The TCM sets the OBDII code when the signal from the Auto Shift Manual Switch is not to factory specifications.

OBDII Code P0959 Dodge - Auto Shift Manual Mode Circuit Intermittent - AutoCodes.com — P0959 Dodge Code - Auto Shift Manual Mode Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P0959 Dodge?

Faulty Auto Shift Manual Switch
Auto Shift Manual Switch harness is open or shorted
Auto Shift Manual Switch circuit poor electrical connection

How to Fix the DTC P0959 Dodge?

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 P0959 Dodge 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 P0959 Dodge Code

1. What are the common symptoms of OBDII code P0959 in a Dodge related to Auto Shift Manual Mode Circuit Intermittent?

The common symptoms include issues with shifting gears, erratic shifting patterns, and the inability to engage or disengage manual mode.

2. What are the possible causes of OBDII code P0959 in a Dodge?

Common causes of this code include faulty wiring or connectors in the auto shift manual mode circuit, a defective transmission control module (TCM), or a malfunctioning shift solenoid.

3. How can I diagnose the Auto Shift Manual Mode Circuit Intermittent issue in my Dodge?

Diagnosing this issue typically involves performing a thorough inspection of the wiring and connectors in the auto shift manual mode circuit, checking the TCM for any faults, and testing the shift solenoid for proper operation.

4. Can I continue driving my Dodge with OBDII code P0959 present?

It is not recommended to continue driving your Dodge with this code present, as it can lead to further transmission issues and potential safety hazards. It is best to address the problem promptly.

5. How can I repair OBDII code P0959 in my Dodge?

Repairing this code may involve repairing or replacing any damaged wiring or connectors in the auto shift manual mode circuit, replacing the TCM if faulty, or replacing the shift solenoid if necessary.

6. Is it possible to reset the OBDII code P0959 in a Dodge without fixing the underlying issue?

While you can clear the code using an OBDII scanner, it is not advisable to do so without addressing the root cause. The code is likely to reappear if the issue is not resolved.

7. Can a DIY enthusiast fix OBDII code P0959 in a Dodge?

Depending on your level of experience and access to tools, it may be possible to address this code as a DIY project. However, complex transmission issues may require professional diagnosis and repair.

8. How much does it typically cost to repair OBDII code P0959 in a Dodge?

The cost of repairing this code can vary depending on the specific cause of the issue, the extent of the damage, and labor rates in your area. It is recommended to obtain quotes from reputable mechanics for an accurate estimate.

9. Are there any preventive measures to avoid OBDII code P0959 in a Dodge?

Regular maintenance checks, such as inspecting wiring harnesses for wear and tear, keeping the transmission fluid at the proper level, and addressing any shifting issues promptly, can help prevent this code from occurring.

10. How long does it usually take to repair OBDII code P0959 in a Dodge?

The repair time can vary based on the complexity of the issue, availability of parts, and the mechanic's workload. It is advisable to consult with a professional technician for an estimated repair timeline.