AutoCodes – Jeep – P063B Jeep

P063B Jeep Code - Generator Voltage Sense Circuit Range/Performance

Quick Answer

The Powertrain Control Module (PCM) monitors the Generator (Alternator) voltage output. Common causes include Faulty Alternator, Alternator harness is open or shorted, Alternator 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: P063B Jeep indicates Generator Voltage Sense Circuit Range/Performance.
Common causes: Common causes include Faulty Alternator, Alternator harness is open or shorted, Alternator 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 1,167

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 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P063B Jeep Description

The Powertrain Control Module (PCM) monitors the Generator (Alternator) voltage output. The PCM sets the OBDII code if the alternator output voltage is less than the Battery feed circuit voltage.

OBDII Code P063B Jeep - Generator Voltage Sense Circuit Range/Performance - AutoCodes.com — P063B Jeep Code - Generator Voltage Sense Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P063B Jeep?

Faulty Alternator
Alternator harness is open or shorted
Alternator circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P063B Jeep?

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 P063B Jeep 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 P063B Jeep code?

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Get the P063B Jeep code diagnosed by a professional: Find a repair shop in your area

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 P063B Jeep Code

1. What are the common symptoms of OBDII code P063B in a Jeep?

- Common symptoms include issues with the vehicle's electrical system, such as dimming lights, erratic gauge behavior, and potential stalling.

2. What does the OBDII code P063B in a Jeep indicate?

- This code indicates a potential problem with the Generator Voltage Sense Circuit Range/Performance.

3. What are the possible causes of OBDII code P063B in a Jeep?

- Possible causes include a faulty generator, damaged wiring or connectors in the voltage sense circuit, or issues with the powertrain control module (PCM).

4. How can I diagnose the cause of OBDII code P063B in my Jeep?

- Diagnosing this code typically involves checking the generator output voltage, inspecting the wiring and connectors in the voltage sense circuit, and testing the PCM for proper functioning.

5. Can I continue driving my Jeep with the P063B code?

- It is not recommended to drive your Jeep with this code present, as it can lead to potential electrical issues and vehicle stalling.

6. How can I repair OBDII code P063B in my Jeep?

- Repairing this code may involve replacing the generator, repairing damaged wiring or connectors, or reprogramming the PCM. It is recommended to consult a qualified mechanic for proper diagnosis and repair.

7. Are there any DIY tips for troubleshooting OBDII code P063B in a Jeep?

- You can start by checking the generator connections, inspecting the wiring for any visible damage, and ensuring all fuses related to the charging system are intact.

8. Will resetting the OBDII code P063B clear the issue in my Jeep?

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

9. How much does it typically cost to repair OBDII code P063B in a Jeep?

- The cost of repairing this code can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Is it advisable to ignore OBDII code P063B in my Jeep?

- Ignoring this code can lead to potential electrical problems and vehicle stalling, so it is best to address the issue promptly to prevent further damage.