AutoCodes – Nissan – P0755 2005 Nissan Altima Sedan

P0755 2005 Nissan Altima Sedan Code - Shift Control Solenoid 'B' Malfunction

Quick Answer

Shift solenoid valve B is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'B' valve. 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: P0755 2005 Nissan Altima Sedan indicates Shift Control Solenoid 'B' Malfunction.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'B' valve.
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 8,335

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 Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0755 2005 Nissan Altima Sedan Description

OBDII Code P0755 2005 Nissan Altima Sedan - Shift Control Solenoid 'B' Malfunction - AutoCodes.com — P0755 2005 Nissan Altima Sedan Code - Shift Control Solenoid 'B' Malfunction

What does this mean?

What are the Possible Causes of the DTC P0755 2005 Nissan Altima Sedan?

Low transmission fluid level
Dirty transmission fluid
Faulty shift solenoid 'B' valve
Shift solenoid 'B' valve harness is open or shorted
Shift solenoid 'B' valve circuit poor electrical connection

How to Fix the DTC P0755 2005 Nissan Altima Sedan?

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 does this mean?

Code Tech Notes

When the a transmission solenoid is malfunction, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0755 2005 Nissan Altima Sedan 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 P0755 2005 Nissan Altima Sedan Code

1. What does the OBDII code P0755 mean for a 2005 Nissan Altima?

P0755 indicates a malfunction in the Shift Solenoid 'B' circuit, which is responsible for controlling gear shifting in the transmission.

2. What are the common symptoms of a P0755 code in a 2005 Nissan Altima?

Symptoms include difficulty shifting gears, transmission stuck in one gear, harsh shifting, reduced fuel efficiency, and the Check Engine Light illuminating.

3. What causes the P0755 code to appear in a 2005 Nissan Altima?

Common causes include a faulty shift solenoid, damaged wiring or connectors in the solenoid circuit, low or dirty transmission fluid, or a malfunctioning transmission control module (TCM).

4. Can I drive my 2005 Nissan Altima with a P0755 code?

It is not recommended to drive for long periods with this code, as it can cause further damage to the transmission and lead to unsafe driving conditions.

5. How can I diagnose the P0755 code in my 2005 Nissan Altima?

Use an OBDII scanner to confirm the code, inspect the transmission fluid for contamination, check the wiring and connectors for damage, and test the shift solenoid with a multimeter.

6. How do I fix the P0755 code on a 2005 Nissan Altima?

Repairs may involve replacing the shift solenoid 'B', repairing or replacing damaged wiring, cleaning or replacing transmission fluid, or updating/replacing the TCM.

7. What is the cost to repair the P0755 code in a 2005 Nissan Altima?

The repair cost varies. Replacing a shift solenoid typically costs $150â€“$400, including parts and labor. Wiring repairs or TCM replacement may cost more.

8. How do I prevent the P0755 code from recurring?

Regularly check and replace transmission fluid, inspect wiring for wear, and address transmission issues promptly to avoid recurring solenoid malfunctions.

9. Can low transmission fluid cause the P0755 code?

Yes, low or dirty transmission fluid can cause the shift solenoid to malfunction, triggering the P0755 code.

10. Is P0755 specific to the 2005 Nissan Altima?

No, the P0755 code is a generic OBDII code and can appear in other vehicles, but the diagnostic and repair steps may vary depending on the make and model.