AutoCodes – Isuzu – P0705 Isuzu

P0705 Isuzu Code - Transmission Range Switch Fault

Quick Answer

The park/neutral position (PNP) switch includes a transmission range switch. Common causes include Faulty Park/Neutral Position Switch, Misadjusted Park/Neutral Position Switch, Park/Neutral Position Switch harness is open or shorted. 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: P0705 Isuzu indicates Transmission Range Switch Fault.
Common causes: Common causes include Faulty Park/Neutral Position Switch, Misadjusted Park/Neutral Position Switch, Park/Neutral Position Switch harness is open or shorted.
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 19,713

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
Cost to Diagnose
FAQs
Comments
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Code P0705 Isuzu Description

The park/neutral position (PNP) switch includes a transmission range switch. The transmission range switch detects the selector lever position when the shift lever is in the N or P shift position and sends a signal to the Transmission Control Module (TCM).

OBDII Code P0705 Isuzu - Transmission Range Switch Fault - AutoCodes.com — P0705 Isuzu Code - Transmission Range Switch Fault

What does this mean?

What are the Possible Causes of the DTC P0705 Isuzu?

Faulty Park/Neutral Position Switch
Misadjusted Park/Neutral Position Switch
Park/Neutral Position Switch harness is open or shorted
Park/Neutral Position Switch circuit poor electrical connection

How to Fix the DTC P0705 Isuzu?

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 P0705 Isuzu 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 P0705 Isuzu Code

1. What are the common symptoms of OBDII code P0705 Transmission Range Switch Fault in an Isuzu vehicle?

The common symptoms include difficulty shifting gears, erratic shifting behavior, stalling when coming to a stop, and the inability to start the engine.

2. What does the OBDII code P0705 indicate in an Isuzu vehicle?

The P0705 code indicates a fault in the transmission range switch, also known as the neutral safety switch, which helps the vehicle's control module monitor the gear position.

3. What are the possible causes of the P0705 code in an Isuzu vehicle?

The code can be triggered by a faulty transmission range switch, damaged wiring or connectors related to the switch, misaligned or improperly installed switch, or issues with the transmission control module.

4. How can I diagnose the P0705 code in my Isuzu for a Transmission Range Switch Fault?

Diagnosing the code usually involves checking the wiring and connectors for any damage, testing the transmission range switch for proper functionality, and ensuring the switch is correctly aligned and installed.

5. Can I continue driving my Isuzu with the P0705 code present?

It is not recommended to continue driving the vehicle with the P0705 code present, as it can lead to further transmission issues and potential safety hazards. It's best to address the problem promptly.

6. Is it possible to repair the P0705 code in my Isuzu without professional help?

While some DIY enthusiasts may be able to replace a faulty transmission range switch themselves, it is recommended to seek help from a qualified mechanic to properly diagnose and repair the issue.

7. What are the repair options for fixing the P0705 code in an Isuzu?

Repair options may include replacing the transmission range switch, repairing or replacing damaged wiring or connectors, re-aligning the switch properly, or resetting the transmission control module.

8. How much does it typically cost to repair the P0705 code in an Isuzu?

The cost of repairing the P0705 code can vary depending on the extent of the issue, the cost of parts, and labor rates. It's best to get a few quotes from different mechanics to compare prices.

9. Will resetting the OBDII system clear the P0705 code in my Isuzu?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the P0705 code is not addressed, the code is likely to reappear. It's important to diagnose and fix the problem.

10. How can I prevent the P0705 code from occurring in my Isuzu in the future?

Regular maintenance checks, ensuring proper installation of components during repairs, and addressing any transmission issues promptly can help prevent the recurrence of the P0705 code in your Isuzu.