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Engine-Codes – Generic – B1405:07

B1405:07 Code - Control Module Voltage Reference Output 2 Circuit High Voltage

Quick Answer

The B1405:07 code indicates a Control Module Voltage Reference Output 2 Circuit High Voltage issue. Common causes include Wiring Issues: Damaged or corroded wiring connecting the control module can disrupt the voltage output, Faulty Connectors: Loose or damaged connectors can cause poor electrical connections and lead to high voltage readings, Malfunctioning Control Module: A malfunctioning control module itself can produce incorrect voltage output. 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
B1405:07 indicates Control Module Voltage Reference Output 2 Circuit High Voltage.
Common causes
Common causes include Wiring Issues: Damaged or corroded wiring connecting the control module can disrupt the voltage output, Faulty Connectors: Loose or damaged connectors can cause poor electrical connections and lead to high voltage readings, Malfunctioning Control Module: A malfunctioning control module itself can produce incorrect voltage output.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code B1405:07 Description

The B1405:07 code indicates a Control Module Voltage Reference Output 2 Circuit High Voltage issue. In simpler terms, this means that the voltage output from a specific control module in the vehicle is reading higher than the expected range. This can have various implications for the vehicle's performance and overall functionality.

OBDII Code B1405:07 - Control Module Voltage Reference Output 2 Circuit High Voltage
B1405:07 Code - Control Module Voltage Reference Output 2 Circuit High Voltage

Common Causes of B1405:07

  1. Wiring Issues: Damaged or corroded wiring connecting the control module can disrupt the voltage output.
  2. Faulty Connectors: Loose or damaged connectors can cause poor electrical connections and lead to high voltage readings.
  3. Malfunctioning Control Module: A malfunctioning control module itself can produce incorrect voltage output.
  4. Power Supply Problems: Issues with the vehicle's power supply, such as a failing battery or alternator, can affect the voltage output.
  5. Environmental Factors: Extreme temperatures or moisture exposure can also contribute to high voltage readings.

Symptoms of B1405:07

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Erratic Behavior: The vehicle may exhibit erratic behavior, such as rough idling, stalling, or sudden loss of power.
  3. Electrical Issues: Electrical components in the vehicle, such as lights, windows, or the radio, may not function properly.
  4. Poor Performance: The vehicle may experience a decrease in performance, including reduced acceleration or responsiveness.
  5. Overheating: In some cases, the high voltage output can cause the affected system to overheat, leading to potential damage.

How to Fix B1405:07

  1. Diagnostic Scan: Begin by using a diagnostic scanner to retrieve the specific error code and identify the affected control module.
  2. Visual Inspection: Inspect the wiring, connectors, and control module for any visible damage or corrosion.
  3. Test Voltage Output: Use a multimeter to test the voltage output from the control module and compare it to the specified range.
  4. Repair or Replace Components: Depending on the findings, repair or replace any damaged wiring, connectors, or the control module itself.
  5. Clear Codes: After completing the repairs, clear the error codes and perform a test drive to ensure the issue has been resolved.

Cost to Fix B1405:07

The typical repair costs for addressing a B1405:07 code can vary depending on the extent of the damage and the specific components that need to be repaired or replaced. On average, the cost of parts and labor can range from $200 to $500. However, it's important to note that diagnostic time and labor rates at auto repair shops can fluctuate based on various factors, so it's advisable to check with local providers for a more accurate estimate.

What does this mean?

Tech Notes for B1405:07

B1405:02 Control Module Voltage Reference Output 2 Circuit Short to Ground

B1405:03 Control Module Voltage Reference Output 2 Circuit Low Voltage

B1405:07 Control Module Voltage Reference Output 2 Circuit High Voltage



If the B1405 code is stored in the Seat Memory Control Module, check the Seat Motor and Seat Memory Control Module.

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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.

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