B1973 Cadillac 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 Cadillac 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.
Code B1973 Cadillac Description
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.
What are the Possible Causes of the DTC B1973 Cadillac?
- 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 Cadillac?
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 Cadillac 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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Frequently Asked Questions about B1973 Cadillac Code
1. What are the common symptoms of OBDII code B1973 in a Cadillac, indicating a High Power Control Fault?
- Common symptoms include intermittent or permanent loss of power steering assistance and potential illumination of the power steering warning light on the dashboard.
2. What could be the possible causes of OBDII code B1973 in a Cadillac related to a High Power Control Fault?
- Potential causes may include a faulty power steering control module, damaged wiring harness, loose electrical connections, or issues with the power steering motor.
3. How can I diagnose the High Power Control Fault related to OBDII code B1973 in my Cadillac?
- Diagnosis involves using a diagnostic scan tool to retrieve the specific trouble code, inspecting the power steering system components for visible damage, and performing electrical tests to pinpoint the exact issue.
4. Is it safe to continue driving my Cadillac with OBDII code B1973 indicating a High Power Control Fault?
- It is not recommended to drive the vehicle with this fault, as it can lead to unpredictable power steering behavior and compromise driving safety. Immediate attention and repair are advised.
5. What are some repair tips for addressing OBDII code B1973 in a Cadillac due to a High Power Control Fault?
- Begin by checking and securing all electrical connections, inspecting the wiring harness for damages, testing the power steering control module, and verifying proper power supply to the system.
6. Can a DIY enthusiast fix OBDII code B1973 indicating a High Power Control Fault in a Cadillac?
- While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing the root cause of the High Power Control Fault may require advanced technical knowledge and specialized tools. Professional assistance is recommended.
7. How much does it typically cost to repair OBDII code B1973 related to a High Power Control Fault in a Cadillac?
- Repair costs can vary depending on the specific issue causing the fault, labor rates in your area, and whether new parts or repairs can be made. It is advisable to obtain quotes from reputable mechanics or dealerships.
8. Are there any recalls or technical service bulletins related to OBDII code B1973 and the High Power Control Fault in Cadillac vehicles?
- It is recommended to check with the Cadillac dealership or manufacturer for any relevant recalls or technical service bulletins related to this specific OBDII code and associated power steering issues.
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