AutoCodes – Generic – B1405:07

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

Quick Answer

The parking assist sensors are 3-wire ultrasonic sensors that are used to determine the distance between the vehicle and an object. Common causes include Faulty Parking Assist Sensors, Parking Assist Sensors harness is open or shorted, Parking Assist Sensors 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: B1405:07 indicates Control Module Voltage Reference Output 2 Circuit High Voltage.
Common causes: Common causes include Faulty Parking Assist Sensors, Parking Assist Sensors harness is open or shorted, Parking Assist Sensors 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 1,940

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
Comments
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Code B1405:07 Description

The parking assist sensors are 3-wire ultrasonic sensors that are used to determine the distance between the vehicle and an object. The Parking Assist Control Module supplies a reference voltage to the parking assist sensors via the Parking Assist Sensor Reference Voltage circuit and provides ground via the low reference circuit. The Parking Assist Control Module triggers the sensors in a sequential loop. After each sensor transmits, the 6 Parking Assist Control Module uses the sensor echo received through the signal circuit to calculate the distance and position of an object.
The Diagnostic Trouble Code (DTC) will be set when the Parking Assist Control Module has detected the Parking Assist Sensor Reference Voltage is greater than 10.4 V.

OBDII Code B1405:07 - Control Module Voltage Reference Output 2 Circuit High Voltage - AutoCodes.com — B1405:07 Code - Control Module Voltage Reference Output 2 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC B1405:07?

Faulty Parking Assist Sensors
Parking Assist Sensors harness is open or shorted
Parking Assist Sensors circuit poor electrical connection
Faulty Parking Assist Control Module

How to Fix the DTC B1405:07?

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

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1405:07 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.