AutoCodes – Saturn – B1973 Saturn

B1973 Saturn Code - High Power Control Fault

Quick Answer

Battery guard relay supplies power to modules during controlled power usage. Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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: B1973 Saturn indicates High Power Control Fault.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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 615

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 Aug 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1973 Saturn Description

Battery guard relay supplies power to modules during controlled power usage. For 15 minutes after the ignition is turned to the LOCK position and Body Control Module (BCM) is awake, the battery guard relay output coil is grounded at the terminal of BCM. After 15 minutes, low power driver output is turned on.
The Diagnostic Trouble Code (DTC) B1973 will set when BCM detects a short to battery voltage in the battery guard relay output circuit for more than 2 seconds. When DTC B1973 is set, BCM will turn low power control output off if ignition is in LOCK position. DTC B1973 will clear when conditions for fault no longer exist or when scan tool is used. A history DTC will clear after 50 consecutive ignition cycles if conditions for fault no longer exist.

OBDII Code B1973 Saturn - High Power Control Fault - AutoCodes.com — B1973 Saturn Code - High Power Control Fault

What does this mean?

What are the Possible Causes of the DTC B1973 Saturn?

Faulty Body Control Module (BCM)
Body Control Module (BCM) harness is open or shorted
Body Control Module (BCM) circuit poor electrical connection

How to Fix the DTC B1973 Saturn?

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 B1973 Saturn 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 B1973 Saturn Code

1. What are the common symptoms of OBDII code B1973 in a Saturn related to High Power Control Fault?

The common symptoms of OBDII code B1973 in a Saturn include issues with power steering, power brakes, and potential stalling of the vehicle.

2. What are some possible causes of OBDII code B1973 in a Saturn?

Possible causes of OBDII code B1973 in a Saturn include faulty power steering control module, wiring issues, or a malfunctioning power steering pump.

3. How can I diagnose the High Power Control Fault in my Saturn triggering OBDII code B1973?

Diagnosing the High Power Control Fault in your Saturn involves checking the power steering system for any visible damage, testing the power steering control module, and inspecting the wiring for any issues.

4. Can a DIY enthusiast repair OBDII code B1973 related to High Power Control Fault in a Saturn?

Repairing OBDII code B1973 in a Saturn may require advanced diagnostic tools and expertise. It is recommended to consult a professional mechanic for proper diagnosis and repair.

5. Is it safe to continue driving my Saturn with OBDII code B1973 indicating a High Power Control Fault?

It is not recommended to continue driving your Saturn with OBDII code B1973 active, as it may lead to safety issues due to potential power steering or brake failures.

6. How much does it typically cost to repair OBDII code B1973 related to High Power Control Fault in a Saturn?

The cost of repairing OBDII code B1973 in a Saturn can vary depending on the underlying cause. It is best to get a professional diagnosis to determine the exact repair cost.

7. Can resetting the OBDII system clear the B1973 code related to High Power Control Fault in a Saturn?

Resetting the OBDII system may temporarily clear the B1973 code, but if the underlying issue is not fixed, the code is likely to reappear. It is crucial to address the root cause of the fault.

8. Are there any preventive measures to avoid OBDII code B1973 related to High Power Control Fault in a Saturn?

Regular maintenance of the power steering system, including fluid checks and inspections, can help prevent issues that may trigger the B1973 code in a Saturn.

9. Will OBDII code B1973 in a Saturn affect the overall performance of the vehicle?

Yes, OBDII code B1973 related to High Power Control Fault can significantly impact the performance of a Saturn, especially in terms of power steering and brake functionality.

10. How long does it take to repair OBDII code B1973 related to High Power Control Fault in a Saturn?

The repair time for OBDII code B1973 in a Saturn can vary depending on the specific issue causing the fault. It is advisable to consult a professional mechanic for an accurate estimate of repair time.