AutoCodes – Generic – B1395:03

B1395:03 Code - Control Module Voltage Reference Output 1 Circuit Low Voltage

Quick Answer

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Common causes include Low battery voltage, Faulty Control Module, Control Module 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: B1395:03 indicates Control Module Voltage Reference Output 1 Circuit Low Voltage.
Common causes: Common causes include Low battery voltage, Faulty Control Module, Control Module 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 785

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 17, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1395:03 Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Damage to components, and incorrect data can occur when the voltage is out of range. The vehicle has multiple Control Modules that will set this Diagnostic Trouble Code (DTC).

OBDII Code B1395:03 - Control Module Voltage Reference Output 1 Circuit Low Voltage - AutoCodes.com — B1395:03 Code - Control Module Voltage Reference Output 1 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC B1395:03?

Low battery voltage
Faulty Control Module
Control Module harness is open or shorted
Control Module circuit poor electrical connection

How to Fix the DTC B1395:03?

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

B1395:03 Control Module Voltage Reference Output Circuit Low Voltage
B1395:07 Control Module Voltage Reference Output Circuit High Voltage

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1395:03 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 B1395:03 Code

1. What are the common symptoms of OBDII code B1395:03?

- Common symptoms include rough idling, stalling, poor engine performance, and the illumination of the check engine light.

2. What causes the OBDII code B1395:03 to occur?

- This code is typically triggered by a malfunction in the control module voltage reference output 1 circuit, resulting in low voltage.

3. How can I diagnose the cause of OBDII code B1395:03?

- Diagnosing this code usually involves checking the wiring and connections related to the control module voltage reference output 1 circuit for any damage or loose connections.

4. Can a faulty sensor trigger the OBDII code B1395:03?

- Yes, a faulty sensor that is connected to the affected circuit can potentially trigger this code if it is not receiving the proper voltage.

5. What are some repair tips for fixing OBDII code B1395:03?

- Repair tips include inspecting the wiring harness, repairing any damaged wires, checking the control module for proper functioning, and ensuring all connectors are securely attached.

6. Is it safe to continue driving with OBDII code B1395:03 present?

- It is generally not recommended to continue driving with this code present, as it can lead to further damage to the vehicle and potentially affect its performance.

7. Can a DIY enthusiast fix OBDII code B1395:03 at home?

- While some simple repairs like checking connections and replacing damaged wires can be done at home, diagnosing and repairing the root cause of this code may require professional tools and expertise.

8. How much does it typically cost to repair OBDII code B1395:03 at a mechanic?

- The cost of repair can vary depending on the extent of the issue and the labor rates of the mechanic, but it is advisable to budget for diagnostic fees, parts replacement, and labor costs.

9. Are there any preventive measures to avoid OBDII code B1395:03 in the future?

- Regular vehicle maintenance, including checking the electrical system and monitoring for any warning signs, can help prevent issues that may lead to this OBDII code.

10. Can resetting the OBDII system clear OBDII code B1395:03 permanently?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces.