AutoCodes – Generic – B1445:02

B1445:02 Code - Control Module Voltage Output Circuit Short to Ground

Quick Answer

The Body Control Module (BCM) controls the retained accessory power relay 1 and retained accessory power relay 2 through their control circuits by applying a voltage to the retained accessory power relay coil control circuit. Common causes include Faulty Retained Accessory Power Relay 1 or Retained Accessory Power Relay 2, Retained Accessory Power Relay harness is open or shorted, Retained Accessory Power Relay 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: B1445:02 indicates Control Module Voltage Output Circuit Short to Ground.
Common causes: Common causes include Faulty Retained Accessory Power Relay 1 or Retained Accessory Power Relay 2, Retained Accessory Power Relay harness is open or shorted, Retained Accessory Power Relay 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 573

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 18, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1445:02 Description

The Body Control Module (BCM) controls the retained accessory power relay 1 and retained accessory power relay 2 through their control circuits by applying a voltage to the retained accessory power relay coil control circuit. The retained accessory power relay 1 and retained accessory power relay 2 are energized when the ignition switch is in the ACCESSORY or the ON position. The Diagnostic Trouble Code (DTC) will be set only when the module requests the output and there is a short to ground in the ignition voltage circuit.

OBDII Code B1445:02 - Control Module Voltage Output Circuit Short to Ground - AutoCodes.com — B1445:02 Code - Control Module Voltage Output Circuit Short to Ground

What does this mean?

What are the Possible Causes of the DTC B1445:02?

Faulty Retained Accessory Power Relay 1 or Retained Accessory Power Relay 2
Retained Accessory Power Relay harness is open or shorted
Retained Accessory Power Relay circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1445:02?

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 B1445:02 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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Need Help with the 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 B1445:02 Code

What does OBDII code B1445:02 mean?

Code B1445:02 indicates a short to ground in the control module voltage output circuit, which can affect the operation of the vehicle's electronic systems.

What are the common symptoms of code B1445:02?

Symptoms may include malfunctioning electronic components, warning lights on the dashboard, or intermittent electrical issues in the vehicle.

What causes OBDII code B1445:02?

The code is typically caused by damaged wiring, a faulty control module, or corrosion in the electrical connections leading to a short circuit.

Can I drive my car with code B1445:02?

Driving with this code is not recommended, as it could lead to further electrical damage or impact critical functions of the vehicle.

How do I diagnose code B1445:02?

Diagnosis involves inspecting the affected wiring and connectors for damage or corrosion and testing the control module for proper operation.

What tools are needed to fix code B1445:02?

Basic tools such as a multimeter, wiring diagrams, and possibly a scan tool with advanced diagnostic capabilities are needed for troubleshooting and repair.

Is replacing the control module necessary for code B1445:02?

Replacing the control module is only necessary if it is confirmed to be faulty after testing; otherwise, the issue may be with the wiring or connectors.

How much does it cost to repair code B1445:02?

Repair costs vary depending on the extent of the damage, but fixing wiring or connectors is usually less expensive than replacing the control module.

Can I fix code B1445:02 myself?

If you have basic electrical knowledge, proper tools, and access to wiring diagrams, you may be able to fix the issue yourself. Otherwise, professional assistance is recommended.

What should I do if code B1445:02 keeps reappearing after repair?

If the code persists, recheck all wiring, connectors, and the control module to ensure the issue was fully resolved and no other faults exist.