AutoCodes – Isuzu – P1393 Isuzu

P1393 Isuzu Code - G-Sensor Circuit High Voltage

Quick Answer

An intermittent problem can be caused by a misrouted harness, rubbed-through wire insulation or broken wire inside insulation. Common causes include Faulty G-Sensor, G-Sensor harness is open or shorted, G-Sensor 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: P1393 Isuzu indicates G-Sensor Circuit High Voltage.
Common causes: Common causes include Faulty G-Sensor, G-Sensor harness is open or shorted, G-Sensor 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 6,338

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 Apr 15, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1393 Isuzu Description

An intermittent problem can be caused by a misrouted harness, rubbed-through wire insulation or broken wire inside insulation. If connections and wiring appear okay, monitor scan tool "G" sensor display while moving sensor connections and related harnesses. A change in the scan tool display will indicate the area of the fault. MAP and "G" sensor share 5-volt reference and ground terminals. A defective MAP sensor or harness can set "G" sensor Diagnostic Trouble Code (DTC).

OBDII Code P1393 Isuzu - G-Sensor Circuit High Voltage - AutoCodes.com — P1393 Isuzu Code - G-Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1393 Isuzu?

Faulty G-Sensor
G-Sensor harness is open or shorted
G-Sensor circuit poor electrical connection

How to Fix the DTC P1393 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 P1393 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.

Need more information about the P1393 Isuzu code?

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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 P1393 Isuzu Code

1. What are the common symptoms of OBDII code P1393 Isuzu (G-Sensor Circuit High Voltage)?

- Common symptoms include rough idling, engine misfires, poor acceleration, and the illumination of the Check Engine Light.

2. What can cause the OBDII code P1393 Isuzu to trigger?

- The code can be triggered by a faulty G-Sensor, damaged wiring in the G-Sensor circuit, or issues with the G-Sensor power supply.

3. How can I diagnose the cause of OBDII code P1393 Isuzu?

- Diagnose the code by checking the G-Sensor for proper operation, inspecting the wiring for any damage, and testing the power supply to the G-Sensor.

4. Is it safe to continue driving with OBDII code P1393 Isuzu active?

- It is not recommended to drive with the code active as it can lead to poor engine performance and potential further damage if not addressed promptly.

5. Can I reset OBDII code P1393 Isuzu without fixing the underlying issue?

- Resetting the code without fixing the underlying issue will only temporarily clear the Check Engine Light, and the code is likely to reappear once the problem persists.

6. What are some repair tips for addressing OBDII code P1393 Isuzu?

- Repair tips include checking and repairing any damaged wiring, replacing the faulty G-Sensor, and ensuring proper power supply to the G-Sensor.

7. How much does it typically cost to repair OBDII code P1393 Isuzu?

- The cost of repairs can vary depending on the extent of the issue and labor rates, but it may range from $100 to $300 for parts and labor.

8. Can a DIY enthusiast fix OBDII code P1393 Isuzu at home?

- While some DIY enthusiasts may be able to diagnose and address the issue, it is recommended to seek professional help to properly diagnose and repair the code.

9. Will OBDII code P1393 Isuzu affect the vehicle's overall performance?

- Yes, the code can affect the vehicle's performance by causing rough idling, misfires, and poor acceleration until the issue is resolved.

10. How long does it take to repair OBDII code P1393 Isuzu?

- The repair time can vary based on the complexity of the issue and availability of parts, but it typically takes a few hours to a day to diagnose and fix the problem.